C++ program to get array input and print using while loop

C++ program to get array input and print using while loop

In this article, we will discuss the concept of C++ program to get array input and print using While loop

In this post, we are going to learn how to write a program to read array input and print given elements in an array using while loop in C++ language

Code to read input and print of  array elements

Code to take input and print integer of an array using while loop

In this code, we are going to learn how to read integer array input given by user and print the them using while loop in C++ language

Program 1

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,len;//integer variable declaration
    cout<<"Enter the Array length: ";
    //take input for array length
      cin>>len;
      //Reading the input from user for array length
    int num[len];
//one dim Array declaration
      cout<<"\n";//move to next line

       cout<<"Enter the Number for array :";
       //take input for elements(marks)
       i=0;
    while(i<len){//input using while loop
      cin>>num[i];
      //Reading the array elements from user
      i++;
    }
    cout<<"\ndisplay the number\n";
    i=0;
      while(i<len){//display elements using for loop
      cout<<num[i];
      cout<<("\n");
      i++;
    }
getch();
    return 0;
}

When the above code is executed, it produces the following result

 

Program 2

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,len;//integer variable diclaration
    cout<<"Enter the Array length: ";
    //request input for array length
      cin>>len;
      //Reading the input for array length
    int num[len];
//Array declaration - single dimension
      cout<<"\n";//move to next line

i=0;
       //Request input for elements(number)
    while( i<len){//input using while loop
            cout<<"Enter the marks "<<"marks["<<i<<"] :";
      cin>>num[i];
      //Reading the array elements from user
       i++;
    }
    cout<<"\ndisplay the marks\n";
    i=0;
      while(i<len){//display elements using while loop
      cout<<"marks["<<i<<"] :"<<num[i];
      cout<<("\n");
      i++;
    }
getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the array length: 5


Enter the marks marks[0] :456
Enter the marks marks[0] :712
Enter the marks marks[0] :984
Enter the marks marks[0] :376
Enter the marks marks[0] :512

Display the marks

marks[0] :456
marks[0] :712
marks[0] :984
marks[0] :376
marks[0] :512

 

Code to take input and print string of an array using while loop

In this code, we are going to learn how to read string array input given by user and print the them using while loop in C++ language

Program 1

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    string str[20];
    //String array declaration
    int len;
    //Variable declaration - integer
    cout<<"Enter array length\n";
    //Ask input for array length
    cin>>len;
//Reading the array length
    cout<<"\nEnter students name\n";
    int i=0;
    while(i<len){
        cin>>str[i];
         i++;
    }//Enter the student name using while loop

    cout<<"\nEntered students names are:\n";
    int j=0;
    while(j<len){
        cout<<str[j]<<"\n";
         j++;
    }// Display the student name using while loop


    getch();
    return 0;
}

When the above code is executed, it produces the following result

 

Program 2

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    string str[20];
    //String array declaration
    int len;
    //Variable declaration - integer
    cout<<"Enter array length\n";
    //Ask input for array length
    cin>>len;
//Reading the array length
    cout<<"\nEnter students name\n";
    int i=0;
    while(i<len){
          cout<<"Enter the string"<<" str=["<<i<<"]: ";
        cin>>str[i];
         i++;
    }//Enter the student name using while loop

    cout<<"\nEntered students names are:\n";
    int j=0;
    while(j<len){
        cout<<"Your entered string is:"<<" str=["<<j<<"]: ";
        cout<<str[j]<<"\n";
         j++;
    }// Display the student name using while loop


    getch();
    return 0;
}

When the above code is executed, it produces the following result

Enter the array length: 5

Enter students name

Enter the string str[0] :Kumuthini
Enter the string str[1] :Mahilini
Enter the string str[2] :Nimalini
Enter the string str[3] :Sutharsini
Enter the string str[4] :kegini



Entered students names are:

you entered string is: str[0] :Kumuthini
you entered string is: str[1] :Mahilini
you entered string is: str[2] : Nimalini
you entered string is: str[3] :Sutharsini
you entered string is: str[4] :kegini

 

Code to take input and print character of an array using while loop

In this code, we are going to learn how to read character array input given by user and print the them using while loop in C++ language

Program 1

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,len;
    //variable declaration for integr
    cout<<"Enter the Array length: ";
    //Request input for array length
      cin>>len;
      //Reading the input for array length
    char char_array[len];
//character Array declaration
      cout<<"\n";//move to next line

       cout<<"Enter the characters for array :";
       //Request input for elements(numbers)
       i=0;
    while(i<len){//input using while loop
      cin>>char_array[i];
      //Reading the array elements from user
       i++;
    }
    cout<<"\ndisplay the characters\n";
    i=0;
      while(i<len){//display elements using while loop
      cout<<char_array[i];
      cout<<("\n");
       i++;
    }
getch();
    return 0;
}

When the above code is executed, it produces the following result

Program 2

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,len;
    //variable declaration for integer
    cout<<"Enter the Array length: ";
    //Request input for array length
      cin>>len;
      //Reading the input for array length
    char char_array[len];
//Array declaration
      cout<<"\n";//move to next line

      cout<<"Enter the characters for array :\n";
       //Request input for elements(numbers)
       i=0;
    while(i<len){//input using while loop
    cout<<"char_array["<<i<<"]:";
      cin>>char_array[i];
      //Reading the array elements from user
       i++;
    }
    cout<<"\ndisplay the characters\n";
    i=0;
      while(i<len){//display elements using while loop
      cout<<"char_array["<<i<<"]:"<<char_array[i];
      cout<<("\n");
       i++;
    }
getch();
    return 0;
}

When the above code is executed, it produces the following result

 

Suggested for you

For loop in C++ language

Operator in C++ language

Variable in C++ language

Data type in C++ language

One dimensional array in C++ language

 

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