Tag Archives: strcmp
C++ || Char Array – Palindrome Number Checker Using A Character Array, Strlen, Strcpy, & Strcmp
The following is a palindromic number checking program, which demonstrates more use of character array’s, Strlen, & Strcmp.
Want sample code for a palindrome checker which works for numbers and words? Click here.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
Character Arrays
How to reverse a character array
Palindrome - What is it?
Strlen
Strcpy
Strcmp
Isdigit
Atoi - Convert a char array to a number
Do/While Loops
For Loops
This program first asks the user to enter a number that they wish to compare for similarity. If the number which was entered into the system is a palindrome, the program will prompt a message to the user via cout. This program determines similarity by using the strcmp function to compare two arrays together. Using a for loop, this program also demonstrates how to reverse a character array, aswell as demonstrates how to determine if the text contained in a character array is a number or not.
This program will repeatedly prompt the user for input until an “exit code” is obtained. The designated exit code in this program is the number 0 (zero). So the program will not stop asking for user input until the number 0 is entered into the program.
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// ============================================================================ // Author: Kenneth Perkins // Date: Jul 10, 2012 // Taken From: http://programmingnotes.org/ // File: palindrome.cpp // Description: Palindrome number checker // ============================================================================ #include <iostream> #include <cctype> #include <cstring> #include <cstdlib> using namespace std; // function prototypes void Reverse(char arry[]); bool IsArryANum(char arry[]); // constant, which is the exit value const char* EXIT_VALUE = "0"; int main() { // declare variables char arry[80]; char arryReversed[80]; do{// get data from user using do/while loop cout<<"\nEnter a positive integer, or ("<<EXIT_VALUE<<") to exit: "; cin >> arry; if(atoi(arry) < 0) // check for negative numbers { cout <<"\n*** Error: "<<arry<<" must be greater than zero\n"; } else if(!IsArryANum(arry)) // check for any letters { cout <<"\n*** Error: "<<arry<<" is not an integer\n"; } else if(strcmp(EXIT_VALUE, arry) == 0) // check for "exit code" { cout <<"\nExiting program...\n"; } else // if all else is good, determine if number is a palindrome { // copy the user input from the first array (arry) // into the second array (arryReversed) strcpy(arryReversed, arry); // function call to reverse the contents inside the // "arryReversed" array to check for similarity Reverse(arryReversed); cout <<endl<<arry; // use strcmp to determine if the two arrays are the same if(strcmp(arryReversed, arry) == 0) { cout <<" is a Palindrome..\n"; } else { cout <<" is NOT a Palindrome!\n"; } } }while(strcmp(EXIT_VALUE, arry) != 0); // keep going until user enters the exit value cout <<"\nBYE!\n"; return 0; }// end of main void Reverse(char arry[]) { // get the length of the current word in the array index int length = strlen(arry)-1; // increment thru each letter within the current char array index // reversing the order of the array for (int currentChar=0; currentChar < length; --length, ++currentChar) { // copy 1st letter in the array index into temp char temp = arry[currentChar]; // copy last letter in the array index into the 1st array index arry[currentChar] = arry[length]; // copy temp into last array index arry[length] = temp; } }// end of Reverse bool IsArryANum(char arry[]) { // LOOP UNTIL U REACH THE NULL CHARACTER, // AKA THE END OF THE CHAR ARRAY for(int x=0; arry[x]!='\0'; ++x) { // if the current char isnt a number, // exit the loop & return false if(!isdigit(arry[x])) { return false; } } return true; }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.
Once compiled, you should get this as your output
Enter a positive integer, or (0) to exit: L33T*** error: "L33T" is not an integer
Enter a positive integer, or (0) to exit: -728
*** error: -728 must be greater than zero
Enter a positive integer, or (0) to exit: 1858
1858 is NOT a Palindrome!
Enter a positive integer, or (0) to exit: 7337
7337 is a Palindrome..
Enter a positive integer, or (0) to exit: 0
Exiting program...
BYE!
C++ || Class & Input/Output – Display The Contents Of A User Specified Text File To The Screen
The following is another intermediate homework assignment which was presented in a C++ programming course. This program was assigned to introduce more practice using the class data structure, which is very similar to the struct data structure.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
Header Files - How To Use Them
Class - What Is It?
How To Read Data From A File
String - Getline
Array - Cin.Getline
Strcpy - Copy Contents Of An Array
#Define
This program first prompts the user to input a file name. After it obtains a file name from the user, it then attempts to display the contents of the user specified file to the output screen. If the file could not be found, an error message appears. If the file is found, the program continues as normal. After the file contents finishes being displayed, a summary indicating the total number of lines which has been read is also shown to the screen.
This program was implemented into 3 different files (two .cpp files, and one header file .h). So the code for this program will be broken up into 3 sections, the main file (.cpp), the header file (.h), and the implementation of the functions within the header file (.cpp).
Note: The data file that is used in this example can be downloaded here.
Also, in order to read in the data .txt file, you need to save the .txt file in the same directory (or folder) as your .cpp file is saved in. If you are using Visual C++, this directory will be located in
Documents > Visual Studio 2010 > Projects > [Your project name] > [Your project name]
======== FILE #1 – Main.cpp ========
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// ============================================================================ // File: Main.cpp // ============================================================================ // This program tests the "CFileDisp" object. It prompts the user for an input // filename, then attempts to display the contents of that file to stdout. // After the file contents have been displayed, a summary line indicating the // total number of lines that have been displayed is written to stdout. // ============================================================================ #include <iostream> #include <fstream> #include "CFileDisp.h" using namespace std; // ==== main ================================================================== // // ============================================================================ int main() { CFileDisp myFile; char fname[MAX_LENGTH]; int numLines; // get the filename from the user cout << "Enter a filename: "; cin.getline(fname, MAX_LENGTH); // copy the user's filename into the file object myFile.SetFilename(fname); // have the object open the file myFile.OpenFile(); // if all is good and well... if(myFile.IsValid()==true) { numLines = myFile.DisplayFileContents(); // close the file myFile.CloseFile(); // write how many lines were displayed to stdout cout << "nt*** Total lines displayed: " << numLines << endl; } return 0; }// http://programmingnotes.org/ |
======== FILE #2 – CFileDisp.h ========
Remember, you need to name the header file the same as the #include from the Main.cpp file. This file contains the function declarations, but no implementation of those functions takes place here.
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// ============================================================================ // File: CFileDisp.h // ============================================================================ // This is the header file which declares the objects which are used to open // a text file and display its contents to stdout. // ============================================================================ #ifndef CFILE_DISP_HEADER #define CFILE_DISP_HEADER #include <fstream> using namespace std; #define MAX_LENGTH 256 class CFileDisp { public: // constructor CFileDisp(); // member functions void SetFilename(char newFilename[]); /* Purpose: Copy the user's filename into the file object */ void OpenFile(); /* Purpose: Open's the file which is specified by the user */ bool IsValid(); /* Purpose: Checks if the file exists. Post: Returns false if file cannot be found */ int DisplayFileContents(); /* Purpose: Display's the file contents to stdout Post: Returns the total number of lines contained in the file */ void CloseFile(); /* Purpose: Closes the file */ // destructor ~CFileDisp(); private: bool m_bIsValid; char m_filename[MAX_LENGTH]; ifstream m_inFile; }; #endif // CFILE_DISP_HEADER // http://programmingnotes.org/ |
======== FILE #3 – CFileDisp.cpp ========
This is the function implementation file for the CFileDisp.h class. This file can be named anything you wish as long as you #include “CFileDisp.h”
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// ============================================================================ // File: CFileDisp.cpp // ============================================================================ // This file implements the functions which are declared in the CFileDisp // class, which is located in CFileDisp.h // ============================================================================ #include <iostream> #include <cstring> #include <string> #include "CFileDisp.h" using namespace std; CFileDisp::CFileDisp() { m_bIsValid = 0; }// end of CFileDisp void CFileDisp::SetFilename(char newFilename[]) { strcpy(m_filename,newFilename); }// end of SetFilename void CFileDisp::OpenFile() { m_inFile.open(m_filename); }// end of OpenFile bool CFileDisp::IsValid() { if (m_inFile.fail()) { cout << m_filename << " was not found...nn"; return false; } else { return true; } }// end of IsValid int CFileDisp::DisplayFileContents() { int total=0; string inLine; cout << endl; while(getline(m_inFile, inLine)) { cout << inLine << endl; ++total; } return total; }// end of DisplayFileContents void CFileDisp::CloseFile() { m_inFile.close(); }// end of CloseFile // this is the destructor CFileDisp::~CFileDisp() { m_bIsValid = 0; }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.
Once compiled, you should get this as your output
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Enter a filename: input_file_display_programmingnotes_freeweq_com.txt 346 130 982 90 656 117 595 415 948 126 4 558 571 87 42 360 412 721 463 47 119 441 190 985 214 509 2 571 77 81 681 651 995 93 74 310 9 995 561 92 14 288 466 664 892 8 766 34 639 151 64 98 813 67 834 369 This is a line of text! *** Total lines displayed: 10 |
C++ || Class – Roman Numeral To Integer & Integer To Roman Numeral Conversion
The following is another homework assignment which was presented in a C++ Data Structures course. This program was assigned in order to practice the use of the class data structure, which is very similar to the struct data structure.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
Header Files - How To Use Them
Class - What Is It?
Do/While Loop
Passing a Value By Reference
Roman Numerals - How Do You Convert To Decimal?
Online Roman Numeral Converter - Check For Correct Results
This is an interactive program in which the user has the option of selecting from 7 modes of operation. Of those modes, the user has the option of entering in roman numerals for conversion, entering in decimal numbers for conversion, displaying the recently entered number, and finally converting between roman or decimal values.
A sample of the menu is as followed:
(Where the user would enter numbers 1-7 to select a choice)
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From the following menu: 1. Enter a Decimal number 2. Enter a Roman Numeral 3. Convert from Decimal to Roman 4. Convert from Roman to Decimal 5. Print the current Decimal number 6. Print the current Roman Numeral 7. Quit Please enter a selection: |
This program was implemented into 3 different files (two .cpp files, and one header file .h). So the code for this program will be broken up into 3 sections, the main file (.cpp), the header file (.h), and the implementation of the functions within the header file (.cpp).
======== FILE #1 – Menu.cpp ========
NOTE: On some compilers, you may have to add #include < cstdlib> in order for the code to compile.
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// ============================================================================ // File: Menu.cpp // Purpose: Converts a number enetered in Decimal to Roman Numeral and a // Roman Numeral to a Decimal Number // ============================================================================ #include <iostream> #include <iomanip> #include <string> #include "ClassRomanType.h" using namespace std; // function prototypes void DisplayMenu(); int GetCommand(int command); void RunChoice(int command, ClassRomanType& romanObject); int main() { int command=7; // Holds which action the user chooses to make ClassRomanType romanObject; // Gives access to the class do{ DisplayMenu(); command = GetCommand(command); RunChoice(command, romanObject); cout<<"n--------------------------------------------------------------------n"; }while(command!=7); cout<<"nBye!n"; return 0; }// End of main void RunChoice(int command, ClassRomanType& romanObject) {// Function: Execute the choice selected from the menu // declare private variables int decimalNumber=0; // Holds decimal value char romanNumeral[150]; //Holds value of roman numeral // execute the desired choice cout <<"ntYou selected choice #"<<command<<" which will: "; switch(command) { case 1: cout << "Get Decimal Numbernn"; cout <<"Enter a Decimal Number: "; cin >> decimalNumber; romanObject.GetDecimalNumber(decimalNumber); break; case 2: cout << "Get Roman Numeralnn"; cout <<"nEnter a Roman Numeral: "; cin >> romanNumeral; romanObject.GetRomanNumeral(romanNumeral); break; case 3: cout << "Convert from Decimal to Romannn"; romanObject.ConvertDecimalToRoman(); cout<<"Running....nComplete!n"; break; case 4: cout << "Convert from Roman to Decimalnn"; romanObject.ConvertRomanToDecimal(); cout<<"Running....nComplete!n"; break; case 5: cout << "Print the current Decimal numbernn"; cout<<"n The current Roman to Decimal Value is: "; cout << romanObject.ReturnDecimalNumber()<<endl; break; case 6: cout << "Print the current Roman Numeralnn"; cout<<"n The current Decimal to Roman Value is: "; cout << romanObject.ReturnRomanNumber()<<endl; break; case 7: cout << "Quitnn"; break; default: cout << "nError, you entered an invalid command!nPlease try again..."; break; } }//End of RunChoice int GetCommand(int command) {// Function: Gets choice from menu cout <<"nPlease enter a selection: "; cin>> command; return command; }// End of GetCommand void DisplayMenu() {// Function: Displays menu cout <<"From the following menu:n"<<endl; cout <<left<<setw(2)<<"1."<<left<<setw(15)<<" Enter a Decimal number"<<endl; cout <<left<<setw(2)<<"2."<<left<<setw(15)<<" Enter a Roman Numeral"<<endl; cout <<left<<setw(2)<<"3."<<left<<setw(15)<<" Convert from Decimal to Roman"<<endl; cout <<left<<setw(2)<<"4."<<left<<setw(15)<<" Convert from Roman to Decimal"<<endl; cout <<left<<setw(2)<<"5."<<left<<setw(15)<<" Print the current Decimal number"<<endl; cout <<left<<setw(2)<<"6."<<left<<setw(15)<<" Print the current Roman Numeral"<<endl; cout <<left<<setw(2)<<"7."<<left<<setw(15)<<" Quit"<<endl; }// http://programmingnotes.org/ |
======== FILE #2 – ClassRomanType.h ========
Remember, you need to name the header file the same as the #include from the Menu.cpp file. This file contains the function declarations, but no implementation of those functions takes place here.
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// ============================================================================ // File: ClassRomanType.h // Purpose: Header file for Roman Numeral conversion. It contains all // declarations and prototypes for the class members to carry out the // conversion // ============================================================================ #include <string> using namespace std; class ClassRomanType { public: ClassRomanType(); /* Function: constructor initializes class variables to "0" Precondition: none Postcondition: defines private variables */ // member functions void GetDecimalNumber(int decimalNumber); /* Function: gets decimal number Precondition: none Postcondition: Gets arabic number from user */ void GetRomanNumeral(char romanNumeral[]); /* Function: gets roman numeral Precondition: none Postcondition: Gets roman numeral from user */ void ConvertDecimalToRoman(); /* Function: converts decimal number to ronman numeral Precondition: arabic and roman numeral characters should be known Postcondition: Gets roman numeral from user */ void ConvertRomanToDecimal(); /* Function: converts roman numeral to arabic number Precondition: arabic and roman numeral characters should be known Postcondition: Gets decimal number from user */ int ReturnDecimalNumber(); /* Function: displays converted decimal number Precondition: the converted roman numeral to decimal number Postcondition: displays decimal number to user */ string ReturnRomanNumber(); /* Function: displays converted roman numeral Precondition: the converted decimal number to roman numeral Postcondition: displays roman numeral to user */ ~ClassRomanType(); /* Function: destructor used to return memory to the system Precondition: the converted decimal number to roman numeral Postcondition: none */ private: char m_romanValue[150]; // An array holding the roman value within the class int m_decimalValue; // Holds the final output answer of the roman to decimal conversion }; // http://programmingnotes.org/ |
======== FILE #3 – RomanType.cpp ========
This is the function implementation file for the ClassRomanType.h class. This file can be named anything you wish as long as you #include “ClassRomanType.h”
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// ============================================================================ // File: RomanType.cpp // Purpose: Contains the implementation of the class members for the // roman numeral conversion // // *NOTE*: Uncomment cout statements to visualize whats happening // ============================================================================ #include <iostream> #include <string> #include <cstring> #include "ClassRomanType.h" using namespace std; ClassRomanType::ClassRomanType() { m_decimalValue=0; strcpy(m_romanValue,"Currently Undefined"); }// end of ClassRomanType void ClassRomanType:: GetDecimalNumber(int decimalNumber) { m_decimalValue = decimalNumber; }// end of GetDecimalNumber void ClassRomanType:: GetRomanNumeral(char romanNumeral[]) { strcpy(m_romanValue,romanNumeral); }// end of GetRomanNumeral void ClassRomanType:: ConvertDecimalToRoman() { strcpy(m_romanValue,""); // erases any previous data int numericValue[]={1000,900,500,400,100,90,50,40,10,9,5,4,1,0}; char *romanNumeral[]={"M","CM","D","CD","C","XC","L" ,"XL","X","IX","V","IV","I",0}; for (int x=0; numericValue[x] > 0; ++x) { //cout<<endl<<numericValue[x]<<endl; while (m_decimalValue >= numericValue[x]) { //cout<<"current m_decimalValue = " <<m_decimalValue<<endl; //cout<<"current numericValue = "<<numericValue[x]<<endl<<endl; if(strlen(m_romanValue)==0) { strcpy(m_romanValue,romanNumeral[x]); } else { strcat(m_romanValue,romanNumeral[x]); } m_decimalValue -= numericValue[x]; } } }// end of ConvertDecimalToRoman void ClassRomanType:: ConvertRomanToDecimal() { int currentNumber = 0; // Holds value of each letter numerical value int previousNumber = 0; // Holds the numerical value being compared m_decimalValue=0; // Resets the current 'romanToDecimalValue' to zero if(strcmp(m_romanValue,"Currently Undefined")!=0) { for (int counter = strlen(m_romanValue)-1; counter >= 0; counter--) { if ((m_romanValue[counter] == 'M') || (m_romanValue[counter] == 'm')) { currentNumber = 1000; } else if ((m_romanValue[counter] == 'D') || (m_romanValue[counter] == 'd')) { currentNumber = 500; } else if ((m_romanValue[counter] == 'C') || (m_romanValue[counter] == 'c')) { currentNumber = 100; } else if ((m_romanValue[counter] == 'L') || (m_romanValue[counter] == 'l')) { currentNumber = 50; } else if ((m_romanValue[counter] == 'X') || (m_romanValue[counter] == 'x')) { currentNumber = 10; } else if ((m_romanValue[counter] == 'V') || (m_romanValue[counter] == 'v')) { currentNumber = 5; } else if ((m_romanValue[counter] == 'I') || (m_romanValue[counter] == 'i')) { currentNumber = 1; } else { currentNumber = 0; } //cout<<"previousNumber = " <<previousNumber<<endl; //cout<<"currentNumber = " <<currentNumber<<endl; if (previousNumber > currentNumber) { m_decimalValue -= currentNumber; previousNumber = currentNumber; } else { m_decimalValue += currentNumber; previousNumber = currentNumber; } //cout<<"current m_decimalValue = " <<m_decimalValue<<endl<<endl; } } }// end of ConvertRomanToDecimal int ClassRomanType::ReturnDecimalNumber() { return m_decimalValue; }// end of ReturnDecimalNumber string ClassRomanType::ReturnRomanNumber() { return m_romanValue; }// end of ReturnRomanNumber ClassRomanType::~ClassRomanType() { m_decimalValue=0; strcpy(m_romanValue,"Currently Undefined"); }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.
Once compiled, you should get this as your output
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 9
You selected choice #9 which will:
Error, you entered an invalid command!
Please try again...
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 5
You selected choice #5 which will: Print the current Decimal number
The current Roman to Decimal Value is: 0
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 6
You selected choice #6 which will: Print the current Roman Numeral
The current Decimal to Roman Value is: Currently Undefined
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 1
You selected choice #1 which will: Get Decimal Number
Enter a Decimal Number: 1987
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 5
You selected choice #5 which will: Print the current Decimal number
The current Roman to Decimal Value is: 1987
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 3
You selected choice #3 which will: Convert from Decimal to Roman
Running....
Complete!
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 6
You selected choice #6 which will: Print the current Roman Numeral
The current Decimal to Roman Value is: MCMLXXXVII
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 2
You selected choice #2 which will: Get Roman Numeral
Enter a Roman Numeral: mMxiI
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 6
You selected choice #6 which will: Print the current Roman Numeral
The current Decimal to Roman Value is: mMxiI
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 4
You selected choice #4 which will: Convert from Roman to Decimal
Running....
Complete!
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 5
You selected choice #5 which will: Print the current Decimal number
The current Roman to Decimal Value is: 2012
--------------------------------------------------------------------
From the following menu:1. Enter a Decimal number
2. Enter a Roman Numeral
3. Convert from Decimal to Roman
4. Convert from Roman to Decimal
5. Print the current Decimal number
6. Print the current Roman Numeral
7. QuitPlease enter a selection: 7
You selected choice #7 which will: Quit
--------------------------------------------------------------------
Bye!
C++ || Char Array – Palindrome Checker Using A Character Array, ToUpper, Strlen, Strcpy, & Strcmp
The following is a palindrome checking program, which demonstrates more use of char array’s, ToUpper, Strlen, & Strcmp.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
Character Arrays
Cin.getline
How to convert text in a char array from lower to uppercase
How to reverse a character array
Palindrome - What is it?
Strlen
Strcpy
Strcmp
While Loops
For Loops
Constant Variables
Setw
Using a constant value, by default, this program first asks the user to enter 5 words and/or sentences that they want to compare for similarity. If the text which was entered into the program is a palindrome, the program will prompt a message to the user via cout. This program determines similarity by using the strcmp function, to compare two arrays together. This program also demonstrates how to reverse a character array, aswell as demonstrates how to convert all the text which was placed into the char array from lower to UPPERCASE.
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// ============================================================================ // Author: Kenneth Perkins // Date: Feb 26, 2012 // Taken From: http://programmingnotes.org/ // File: palindrome.cpp // Description: Demonstrates a simple palindrome checker // ============================================================================ #include <iostream> #include <iomanip> #include <cstdlib> #include <cctype> #include <cstring> using namespace std; // constant value const int NUM_WORDS = 5; // function prototypes void ConvertAllToUpper(char wordsCopy[][30], char palindrome[][30]); void ReverseCharArray(char palindrome[][30]); void CheckIfPalindrome(char wordsCopy[][30], char palindrome[][30], char words[][30]); int main() { // declare variable // this is a 2-D char array, which by default, has // the ability to hold 5 names, each 30 characters long char words[NUM_WORDS][30]; char wordsCopy[NUM_WORDS][30]; char palindrome[NUM_WORDS][30]; // get data from user cout << "\tWelcome to the Palindrome Check System!\n"; cout << "\nPlease enter " << NUM_WORDS << " word(s) to check for similarity:\n"; for (int index = 0; index < NUM_WORDS; ++index) { cout << "\t#" << index + 1 << ": "; cin.getline(words[index], 30); } // copy the user input into the 'wordsCopy' & // 'palindrome' char array for (int index = 0; index < NUM_WORDS; ++index) { strcpy(wordsCopy[index], words[index]); strcpy(palindrome[index], words[index]); } // create a line seperator cout << endl; cout.fill('-'); cout << left << setw(30) << "" << right << setw(30) << "" << endl; // re-display the input to the screen cout << "\nThis is what you entered into the system:\n"; for (int index = 0; index < NUM_WORDS; ++index) { cout << "\tText #" << index + 1 << ": " << words[index] << endl; } // create a line seperator cout << endl; cout.fill('-'); cout << left << setw(30) << "" << right << setw(30) << "" << endl; // function declaration // convert all the text contained in the 2 arrays to // UPPERCASE ConvertAllToUpper(wordsCopy, palindrome); // function declaration // reverses all the text contained inside the char array // to determine if it is a palindrome ReverseCharArray(palindrome); // display the palindrome's to the screen cout << "\nHere are the palindrome's:\n"; // function declaration // checks to see if the text contained in the char // array is a palindrome or not CheckIfPalindrome(wordsCopy, palindrome, words); cin.get(); return 0; }// end of main void ConvertAllToUpper(char wordsCopy[][30], char palindrome[][30]) { int index = 0; // increment thru the current char array index while (index < NUM_WORDS) { // increment thru each letter within the current char array index for (unsigned currentChar = 0; currentChar < strlen(wordsCopy[index]); ++currentChar) { // checks each letter in the current array index // to see if its lower or UPPERCASE // if its lowercase, change to UPPERCASE if (islower(wordsCopy[index][currentChar])) { wordsCopy[index][currentChar] = toupper(wordsCopy[index][currentChar]); palindrome[index][currentChar] = toupper(palindrome[index][currentChar]); } } ++index; } }// end of ConvertAllToUpper void ReverseCharArray(char palindrome[][30]) { int index = 0; // increment thru the current char array index while (index < NUM_WORDS) { // get the length of the current word in the array index int wordLength = strlen(palindrome[index]) - 1; // increment thru each letter within the current char array index // reversing the order of the array for (int currentChar = 0; currentChar < wordLength; --wordLength, ++currentChar) { // copy 1st letter in the array index into temp char temp = palindrome[index][currentChar]; // copy last letter in the array index into the 1st array index palindrome[index][currentChar] = palindrome[index][wordLength]; // copy temp into last array index palindrome[index][wordLength] = temp; } ++index; } }// end of ReverseCharArray void CheckIfPalindrome(char wordsCopy[][30], char palindrome[][30], char words[][30]) { int palindromeCount = 0; // increment thru the current char array index for (int index = 0; index < NUM_WORDS; ++index) { // if the contents in the 'wordsCopy' & 'palindrome' // are the same, then the word is a palindrome if (strcmp(wordsCopy[index], palindrome[index]) == 0) { cout << "\tText #" << index + 1 << ": " << words[index] << " is a palindrome" << endl; ++palindromeCount; } } if (palindromeCount == 0) { cout << "There were no palindrome's found in the current list!\n"; } }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
Click here to see how cin.getline works.
The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.
Once compiled, you should get this as your output
(Note: The code was compiled 2 seperate times to demonstrate different output)
====== RUN 1 ======Welcome to the Palindrome Check System!
Please enter 5 word(s) to check for similarity:
#1: SteP oN nO PEts
#2: My ProGramminG NoTeS
#3: RaTs liVE ON No eViL StaR
#4: ABLe wAs I ErE I sAw ElBa
#5: LiVE Non Evil------------------------------------------------------------
This is what you entered into the system:
Text #1: SteP oN nO PEts
Text #2: My ProGramminG NoTeS
Text #3: RaTs liVE ON No eViL StaR
Text #4: ABLe wAs I ErE I sAw ElBa
Text #5: LiVE Non Evil------------------------------------------------------------
Here are the palindrome's:
Text #1: SteP oN nO PEts is a palindrome
Text #3: RaTs liVE ON No eViL StaR is a palindrome
Text #4: ABLe wAs I ErE I sAw ElBa is a palindrome
Text #5: LiVE Non Evil is a palindrome====== RUN 2 ======
Welcome to the Palindrome Check System!
Please enter 5 word(s) to check for similarity:
#1: today Is Great
#2: Tomorrow is Foriegn
#3: Sunday Brunch
#4: Hello SkiPper
#5: Mayday Ship DowN!------------------------------------------------------------
This is what you entered into the system:
Text #1: today Is Great
Text #2: Tomorrow is Foriegn
Text #3: Sunday Brunch
Text #4: Hello SkiPper
Text #5: Mayday Ship DowN!------------------------------------------------------------
Here are the palindrome's:
There were no palindrome's found in the current list!
C++ || Input/Output – Using An Array, Sort Names From a Text File & Save The Sorted Names To A New Text File
Since we previously discussed how to sort numbers which is contained in an integer array, it is only fitting that we display a program which sorts characters that are stored in a character array.
This is an interactive program which first displays a menu to the user, allowing them to choose from 6 different modes of operation. The 6 options are described as followed:
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit
From the available choices, the user has the option of reading in names from a file, manually entering in names themselves, displaying the current names in the array, sorting the current names in the array, clearing the current names in the array, and finally quitting the program. When the user chooses to quit the program, whatever data which is currently stored within the array will automatically be saved to the output text file.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
Fstream
Ifstream
Ofstream
Character Arrays
2D Arrays
Working With Files
Pass By Reference
While Loops
For Loops
Bubble Sort
Functions
Switch Statements
Boolean Expressions
Toupper
Strcpy
Strcmp
The data file that is used in this example can be downloaded here.
Note: In order to read in the data .txt file, you need to save the .txt file in the same directory (or folder) as your .cpp file is saved in. If you are using Visual C++, this directory will be located in
Documents > Visual Studio 2010 > Projects > [Your project name] > [Your project name]
NOTE: On some compilers, you may have to add #include < cstdlib> and #include < cstring> in order for the code to compile.
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#include <iostream> #include <fstream> #include <iomanip> using namespace std; // const variable indicating how many names the array can hold const int TOTALNAMES = 100; // function prototypes void DisplayMenu(); int ReadInData(char names[][50], ifstream &infile); void GetUserData(char names[][50], int numberOfNames); void ClearArray(char names[][50], int numberOfNames); void SortArray(char names[][50], int numNames); void DisplayArray(char names[][50], int numNames); void SaveArrayToFile(char names[][50], int numberOfNames, ofstream &outfile); int main() { // declare variables ifstream infile; ofstream outfile; char names[TOTALNAMES][50]; char userResponse = 'Q'; int numberOfNames = 0; // display menu to user DisplayMenu(); cin >> userResponse; // keep looping thru the menu until the user // selects Q (Quit) while(toupper(userResponse)!='Q') { // switch statement indicating the available choices // the user has to make switch(toupper(userResponse)) { case 'R': numberOfNames = ReadInData(names, infile); break; case 'E': cout << "nPlease enter the number of names you want to sort: "; cin >> numberOfNames; GetUserData(names,numberOfNames); break; case 'D': DisplayArray(names, numberOfNames); break; case 'C': ClearArray(names,numberOfNames); numberOfNames=0; break; case 'S': SortArray(names, numberOfNames); break; case 'Q': break; default: cout << "nThe selected option is not apart of the list!nPlease try again.."; break; } // creates a line seperator after each task is executed cout<<endl; cout.fill('-'); cout<<left<<setw(30)<<""<<right<<setw(30)<<""<<endl; // re-display's the menu to the user DisplayMenu(); cin >> userResponse; } // after the user is finished manipulating the // data, save the names to the output file SaveArrayToFile(names, numberOfNames, outfile); return 0; }// end of main // ============================================================================ // displays options to user void DisplayMenu() { cout<<" Welcome to the name sorting program..."; cout<<"nFrom the following menu, select an option"; cout<<"nR - Read in names from a file for sorting"; cout<<"nE - Enter in names manually for sorting"; cout<<"nD - Display the current names in the array"; cout<<"nS - Sort the current names in the array"; cout<<"nC - Clear the current names in the array"; cout<<"nQ - Quitn"; cout<<"n>> "; }// end of DisplayMenu // ============================================================================ // reads in data from a file int ReadInData(char names[][50], ifstream &infile) { int numberOfNames=0; // open input file infile.open("INPUT_UNSORTED_NAMES_programmingnotes_freeweq_com.txt"); if(infile.fail()) { cout<<"Input file could not be found!n" <<"Please place the input file in the correct directory.."; return 0; } else { cout << "nReading in data from the file..."; while(infile.good()) { infile >> names[numberOfNames]; ++numberOfNames; } cout << "nSuccess!"; } infile.close(); // close the infile once we are done using it return numberOfNames; }// end of ReadInData // ============================================================================ // gets data from user (names) for direct input void GetUserData(char names[][50], int numberOfNames) { cout << "nPlease enter "<<numberOfNames<<" names" << endl; for(int index=0; index < numberOfNames; ++index) { cout<<"nName #"<<index+1<<": "; cin >> names[index]; } }// end of GetUserData // ============================================================================ // clears the data contained in the array void ClearArray(char names[][50], int numNames) { if(numNames==0) { cout<<"nThe array is currently empty!n"; } else { cout<<"nDeleting the data contained in the array..."; for(int index=0; index < numNames; ++index) { strcpy(names[index],""); } cout << "nClearing Complete!"; } }// end of ClearArray // ============================================================================ // sorts the array via 'bubble sort' void SortArray(char names[][50],int numNames) { bool sorted = false; char temp[50]; if(numNames==0) { cout<<"nThe array is currently empty!n"; } else { cout << "nSorting the names contained in the array..."; // this is the 'bubble sort' and will execute only // if there is more than 1 name contained within the array // If there is only one name contained in the array, // there is no need to sort anything while((sorted == false) && (numNames > 1)) { sorted = true; for (int index=0; index < numNames-1; ++index) { if (strcmp(names[index], names[index+1]) > 0) { strcpy(temp,names[index]); strcpy(names[index], names[index+1]); strcpy(names[index+1], temp); sorted = false; } } } cout << "nSuccess!"; } }// end of SortArray // ============================================================================ // saves the current data which is in the arrya to the output file void SaveArrayToFile(char names[][50], int numberOfNames, ofstream &outfile) { // open output file outfile.open("OUTPUT_SORTED_NAMES_programmingnotes_freeweq_com.txt"); if(outfile.fail()) { cout<<"Error creating output file!"; return; } else { if(numberOfNames==0) { cout<<"nThe array contained no names.nThere was no data to save to the output file...n"; outfile<<"The array contained no names.nThere was no data to save to the output file...n"; } else { cout<<"nSaving the current contents of the array to the ouptut file.."; outfile<<"Sorted items which were contained within the array..n"; for(int index=0; index < numberOfNames; ++index) { outfile <<"Name #"<<index+1<<": " << names[index]<<endl; } cout << "nSuccess!n"; } } outfile.close(); }// end of SaveArrayToFile // ============================================================================ // displays the current contents of the array to the user // via cout void DisplayArray(char names[][50], int numNames) { if(numNames==0) { cout<<"nThe array is currently empty!n"; } else { cout << "nThe values in the array are:n"; for (int index=0; index < numNames; ++index) { cout << names[index] << endl; } cout<<"nThere is currently "<<numNames<<" names in the array!n"; } }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.
Once compiled, you should get this as your output
(Remember to include the input file)
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> d
The array is currently empty!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> q
The array contained no names.
There was no data to save to the output file...------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> e
Please enter the number of names you want to sort: 3
Please enter 3 names
Name #1: My
Name #2: Programming
Name #3: Notes------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> d
The values in the array are:
My
Programming
NotesThere is currently 3 names in the array!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> s
Sorting the names contained in the array...
Success!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> d
The values in the array are:
My
Notes
ProgrammingThere is currently 3 names in the array!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> c
Deleting the data contained in the array...
Clearing Complete!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> r
Reading in data from the file...
Success!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> d
The values in the array are:
My
Programming
Notes
C++
Java
Assembly
Lemon
Dark
Light
Black
High
Low
Cellphone
Cat
Dog
Penguin
Japan
Peace
Love
Color
White
One
Brain
Eggplant
Phalanx
Countenance
Crayons
Ben
Dover
Eileen
Bob
Downe
Justin
Elizebeth
Rick
Rolled
Sam
Widge
Liza
Destruction
Grove
Aardvark
Primal
Sushi
Victoria
Ostrich
Zebra
Scrumptious
Carbohydrate
Sulk
Ecstatic
Acrobat
Pneumonoultramicroscopicsilicovolcanoconiosis
English
Kenneth
Jessica
Pills
Pencil
Dragon
Mint
Chocolate
Temperature
Cheese
Rondo
Silicon
Scabbiest
Palpitate
Invariable
Henpecked
Titmouse
Canoodle
Boobies
Pressure
Density
Cards
Twiat
Tony
Pink
Green
Yellow
Duck
Dodge
Movie
Zoo
Xiomara
Eggs
Marshmallows
Umbrella
Apple
Panda
Brush
Handle
Door
Knob
Mask
Knife
Speaker
Wood
Orient
LoveThere is currently 100 names in the array!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> s
Sorting the names contained in the array...
Success!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> d
The values in the array are:
Aardvark
Acrobat
Apple
Assembly
Ben
Black
Bob
Boobies
Brain
Brush
C++
Canoodle
Carbohydrate
Cards
Cat
Cellphone
Cheese
Chocolate
Color
Countenance
Crayons
Dark
Density
Destruction
Dodge
Dog
Door
Dover
Downe
Dragon
Duck
Ecstatic
Eggplant
Eggs
Eileen
Elizebeth
English
Green
Grove
Handle
Henpecked
High
Invariable
Japan
Java
Jessica
Justin
Kenneth
Knife
Knob
Lemon
Light
Liza
Love
Love
Low
Marshmallows
Mask
Mint
Movie
My
Notes
One
Orient
Ostrich
Palpitate
Panda
Peace
Pencil
Penguin
Phalanx
Pills
Pink
Pneumonoultramicroscopicsilicovolcanoconiosis
Pressure
Primal
Programming
Rick
Rolled
Rondo
Sam
Scabbiest
Scrumptious
Silicon
Speaker
Sulk
Sushi
Temperature
Titmouse
Tony
Twiat
Umbrella
Victoria
White
Widge
Wood
Xiomara
Yellow
Zebra
ZooThere is currently 100 names in the array!
------------------------------------------------------------
Welcome to the name sorting program...
From the following menu, select an option
R - Read in names from a file for sorting
E - Enter in names manually for sorting
D - Display the current names in the array
S - Sort the current names in the array
C - Clear the current names in the array
Q - Quit>> q
Saving the current contents of the array to the ouptut file..
Success!
C++ || Whats My Name? – Using a Char Array, Strcpy, Strcat, Strcmp, & Strlen
Here is another actual homework assignment which was presented in an intro to programming class.
REQUIRED KNOWLEDGE FOR THIS PROGRAM
This program first prompts the user to enter their name. Upon receiving that information, the program saves input into a character array of size 15. The program then asks if the user has a middle name. If they do, the user will enter a middle name. If they dont, the program proceeds to ask for a last name. Upon receiving the first, [middle], and last names, the program will use strcpy and strcat to copy/append the first, [middle], and last names into a completely new char array titled “fullname.” Lastly, if the users’ first, [middle], or last names are the same, the program will display that data to the screen via cout. The program will also display to the user the number of characters their full name contains using strlen.
NOTE: On some compilers, you may have to add #include < cstring> in order for the code to compile.
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// ============================================================================ // File: NameString.cpp // ============================================================================ // // Description: // This program prompts the user for a first name, middle name and last name. // Each name string is to be saved in its own character array. Then a // "full name" string is created by copying the first name to a fourth array, // and concatenating the middle and last names. Once the full name is // in its own buffer, the total number of characters in the full name will // be displayed. // // ============================================================================ #include <iostream> using namespace std; //function prototypes void FirstMiddleLast(char firstname[]); void FirstLast(char firstname[]); // ==== main ================================================================== // // ============================================================================ int main() { char firstname[15]; // char array with ability to hold 15 characters char response = ' '; // get data from user. Notice, you dont need a loop to input data // into the char array cout << "Please enter your first name: "; cin >> firstname; // check to see if user has a middle name cout << "nDo you have a middle name?(Y/N): "; cin >> response; // you could also use a switch statement here if ((response=='y')||(response=='Y')) { FirstMiddleLast(firstname); // function declaration } else if ((response=='n')||(response=='N')) { FirstLast(firstname); // function declaration } else { cout << "nPlease press either 'Y' or 'N'nna" << "Program exiting...n"; } return 0; }// end of main // ==== FirstMiddleLast ======================================================= // // This function will take as input the first name, and prompt the user for // their middle and last name. Then it will display the total number of // characters in their name // // Input: // limit [IN] -- The users first name // // Output: // The users full name, and the total number of characters in their name // // ============================================================================ void FirstMiddleLast(char firstname[]) { char middlename[15]; char lastname[15]; char fullname[30]; cout << "nPlease enter your middle name: "; cin >> middlename; cout <<"nPlease enter your last name: "; cin >> lastname; strcpy(fullname, firstname); // copies data from 'firstname' into 'fullname' array strcat(fullname, " "); // appends 'fullname' with a space strcat(fullname, middlename); // appends 'fullname' to contain the data from 'middlename' array strcat(fullname, " "); // appends 'fullname' with a space strcat(fullname, lastname); // appends 'fullname' to contain the data from 'lastname' array cout <<"ntYour full name is " << fullname << endl; cout << "tThe total number of characters in your name is: "; cout << strlen(fullname)-2 << endl; // gets total num of chars contained in the 'fullname' array, minus the 2 spaces // if strcmp returns 0, the two strings are the same if(strcmp(firstname, middlename) == 0) { cout << "tYour first and middle name are the samen"; } if(strcmp(middlename, lastname) == 0) { cout << "tYour middle and last name are the samen"; } if(strcmp(firstname, lastname) == 0) { cout << "tYour first and last name are the samen"; } }// end of FirstMiddleLast // ==== FirstLast ============================================================= // // This function will take as input the first name, and prompt the user for // their last name. Then it will display the total number of characters in // their name // // Input: // limit [IN] -- The users first name // // Output: // The users full name, and the total number of characters in their name // // ============================================================================ void FirstLast(char firstname[]) { char lastname[15]; char fullname[30]; cout <<"nPlease enter your last name: "; cin >> lastname; strcpy(fullname, firstname); // copies data from 'firstname' into 'fullname' array strcat(fullname, " "); // appends 'fullname' with a space strcat(fullname, lastname); // appends 'fullname' to contain the data from 'lastname' array cout <<"ntYour full name is " << fullname << endl; cout << "tThe total number of characters in your name is: "; cout << strlen(fullname)-1 << endl; // gets total num of chars contained in the 'fullname' array, minus the single space // if strcmp returns 0, the two strings are the same if(strcmp(firstname, lastname) == 0) { cout << "tYour first and last name are the samenn"; } }// http://programmingnotes.org/ |
QUICK NOTES:
The highlighted lines are sections of interest to look out for.
CHAR ARRAY
Unlike integer arrays, a loop is not necessary in order to input data into a char array. This is highlighted on lines 32, 76, 79, and 125.
FUNCTIONS
Notice lines 18, 19, 69 and 119. When dealing with arrays, in order to pass variables to different functions, you need to include brackets[] letting the compiler know that you are passing an array variable. If you do not declare the functions as so, you will get a compiler error.
STRCPY/STRCAT
These functions are highlighted on lines 81-85, and 127-129. Read the comments within the code on those selected lines, they are helpful.
STRCMP
This compares two strings together to determine if they are the same. This is displayed on lines 92, 96, 100, and 136 when comparing the first, [middle], and last names together for sameness.
STRLEN
This finds the length of the current string, as noted on lines 89 and 133.
Once compiled, you should get this as your output:
Note: The code was compiled five separate times to display the different outputs its able to produce
Please enter your first name: My
Do you have a middle name?(Y/N): y
Please enter your middle name: Programming
Please enter your last name: NotesYour full name is My Programming Notes
The total number of characters in your name is: 18
-----------------------------------------------------------------------Please enter your first name: Programming
Do you have a middle name?(Y/N): N
Please enter your last name: NotesYour full name is Programming Notes
The total number of characters in your name is: 16
-----------------------------------------------------------------------Please enter your first name: Notes
Do you have a middle name?(Y/N): y
Please enter your middle name: Notes
Please enter your last name: NotesYour full name is Notes Notes Notes
The total number of characters in your name is: 15
Your first and middle name are the same
Your middle and last name are the same
Your first and last name are the same
-----------------------------------------------------------------------Please enter your first name: My
Do you have a middle name?(Y/N): N
Please enter your last name: MyYour full name is My My
The total number of characters in your name is: 4
Your first and last name are the same
-----------------------------------------------------------------------Please enter your first name: My
Do you have a middle name?(Y/N): zPlease press either 'Y' or 'N'
Program exiting...
Hi, I'm a software engineer. I write articles about programming and design in my spare time.
