Simple while Loop Program

Every loop consists of three parts in sequence

  1. Initialization: Use to initialize the loop variable.
  2. Condition: It is checked after each iteration as an entry point to the loop.
  3. Updation: Incrementing the loop variable to eventually terminate the loop not satisfying the loop condition.

Below is a simple program on while loop.

#include<stdio.h>

int main()
{
    printf("\n\n\t\tStudytonight - Best place to learn\n\n\n");

    /* 
        always declare the variables before using them 
    */
    int i = 0;  // declaration and initialization at the same time

    printf("\nPrinting numbers using while loop from 0 to 9\n\n");

    /* 
        while i is less than 10 
    */
    while(i<10)
    {
        printf("%d\n",i);

        /* 
            Update i so the condition can be met eventually 
            to terminate the loop 
        */
        i++;    // same as i=i+1;
      }
    printf("\n\n\t\t\tCoding is Fun !\n\n\n");
    return 0;
}

Output:

Basic while Loop Program