C++ while Loop

A while loop is a simple loop that will run the same code over and over as long as a given conditional is true. The condition is checked at the beginning of each run through the loop ( including the first one ). If the conditional is false for the beginning, the while loop will be skipped all together.

Flow of while Loop in C++ by Flow Diagram

C++ while Loop Flowchart Diagram

Syntax: 

    while ( conditional ) {

        // loop body

    }

Example:

#include <iostream>

using namespace std;

 int main () {

   // while loop example

   int i=0;

  while(i < 5)

  {

      cout << "Apple: " << i << endl; // output

      i++; // increment counter

   }

   return 0;

}

Output:

<< C++ for Loop            --         C++ do-while Loop >>