Modulus operator with array

[Battousai]

So I just completed the first part of my assignment via someone elses thread so I figured its actually time for me to put a thread in the correct forum. I have to make a program print the even numbers from my array and output the even number and the corresponding letter that goes with that number. I have to use the Modulus operator to determine the even numbers within the array.

Example A = 0 so the output will be ... The even element = 0 The corresponding letter is A.

Here is my code so far.

// Arrays and Pointers program for Assignment week 4

#include<iostream>
#include<iomanip>

using std::cin;
using std::cout;
using std::endl;
using std::setw;

	int main()
	{                                        // All the arrays and pointers are declared here
		
		char pletter2[26]=  { 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z' };
		char* pphrase = "PRINTING CONTENTS OF THE ARRAY";
		char* pphrase2 = "==============================";
		char* pphrase3 = "PRINTING CONTENTS OF THE ARRAY and adding x to every other element";
		char* pphrase4 = "==================================================================";
		char pphrase5 = 'x';
		char* pphrase6 = "PRINTING CONTENTS OF THE ARRAY USING MOD OPTION";
		char* pphrase7 = "===============================================";

		int number = 0;
		

		



		    cout<<endl;
			cout <<pphrase;
		    cout <<endl;
		    cout <<pphrase2;
			cout <<endl;

	     for(int i = 0; i < 26; i++) // this for statement prints all the elements of the array with a counter
		{
			
		    
			 cout <<pletter2[i];
			
		
		}
          
			cout <<endl;
			cout <<endl;
		    cout <<"Please enter a number between 1 and 26 that corresponds to a letter in the alphabet: "<<endl;
		    cout <<endl;
			cout <<"Example: The number 10 corresponds to the letter J."<<endl;
			cin >>number;

		 if ( number >=1 && number <=26)        // This if statement only happens if the number entered is within the range of the array which is 1-26
		 {
			     cout <<"The number you selected is: "<<number<<endl;
		         cout <<"The letter that corresponds with that number is: "<<pletter2[number-1]<<endl;
		 }
		          else 
		 {
			         cout<<"There was an error with your input please try again"<<endl;
		 }
		 
		 
		 
			
			 
		                                   // These are the outputs for the title
         cout <<endl;
         cout <<endl;
		 cout << pphrase3;
		 cout <<endl;
		 cout <<pphrase4;
		 cout <<endl;

			for(int i = 1; i < 2; i = i +2)    // This for loop replaces every other letter of the array starting with B and makes them "x"
            {
              
			    pletter2[i] = pphrase5;
				
                  
				 for(int j = 0; j<26; j = j+2) // This for loop only outputs every other letter of the array starting with A

					 cout <<pletter2[j]<<pletter2[i];
			         cout <<endl;
			}

		  cout <<endl;
	      cout <<endl;
		  cout <<endl; 
		  cout <<pphrase6;
		  cout <<endl;
		  cout <<pphrase7;


		  
		  int i;
		  
		  
		  for(int i=0; pletter2[i] !='\0' ; i++)   //This for loop goes thru all numbers
                
		  {
			   
			    
			   if ((pletter2[i] & 1) == 0)            // Checks if the number is even
              i=i+1;
           


		     cout <<endl;
			 cout <<"The even numbered element = "<<i<<"    Contents of element within array = "<<pletter2[i];
		     cout <<endl;
		  }
		  
		  
		  
		  
		  
		  
		  
		  
		 {
              
			 

			 
			   
				 

			
		}
		          
				
		 
		 
			return 0;
		}
	
		 

Right now it prints every number and says that it is even and it prints the correct corresponding letter.

[Battousai]

I have gotten everything to run except the output goes past the number 24 which = y and goes all the way to 44 and produces a weird output. Could anyone possibly help me stop when it is done reading the array ? Thanks much and here is the loop.

 for(int i=0; pletter2[i] !='\0' ; i++)   //This for loop goes thru all numbers
                
		  {
			   
			    
			   if ((pletter2[i] & 1) == 0)            // Checks if the number is even
              i=i+1;
           


		     cout <<endl;
			 cout <<"The even numbered element = "<<i<<"    Contents of element within array = "<<pletter2[i];
		     cout <<endl;
		  }

[cran]

pletter2 doesn't have a null char to stop it... you'd be better doing the i < 26 thing, unless you add a null char.

actually, if you add a null char to the end (remember to add 1 to the size, but don't change any other code for iterating the array) you can output the entire char string with
std::cout << pletter2;