C++ while loop for beginners

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The while loop is used when we want the loop to execute and continue executing while the specified condition is true. As the condition is checked at the beginning of the loop, it is also called entry controlled loop.

Syntax:

init-statement
while (condition) {
statement
iteration-expression;
}

Example:

See the program below.

#include <iostream>
using namespace std;

int main() {
   int i = 1;

   //while loop
   while (i <= 5) { 
      cout << "The number is " << i << endl;
      i = i + 1;
   }
   return 0; 
};

Output:

The number is 1
The number is 2
The number is 3
The number is 4
The number is 5

Note: Do not forget to increase the variable used in the condition, otherwise the loop will never end!

About Post Author

Gaurav Dixit

dgaurav300@gmail.com

http://blog.softhubsolution.com

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