While loop

While loop:

                   The while loop is a conditional loop, which repeat the code written in the body of the loop. The while is used to repeat the code until the given conditional remain true. There are many uses of loops such as repeat a piece of codes, repeat any logic for number of times and print the series of number as our own desire. The loop is also used to save our time and space, such that if we repeat a same code for 100 times it takes more time to write and more space to store the coding. The loop is easy to debug and control the flow of program.

Syntax:

                The general syntax for write the while loops.

While (condition)

{

Body of loop;

increment if needed;

}

Example:

                Write the program that print counting from 1 to 10 by using while loop.

#include <iostream>

using namespace std;

void main (void)

{

       int loop=1; // variable initialization

       while (loop<=10) // conditional

       {

              cout<<loop<<endl; // write the statement for counting

              loop++; // increment in the variable which is repeating

       }

}