C++ doWhile Loop Control Structure

In this Tutorial we will understand and learn the working of dowhile Loop statements in C++ programming language.

Loops are used in programming to repeat a specific block until some end condition is met.

A do while loop is similar to a while loop, except that a do while loop is guaranteed to execute at least one time. This is because unlike for and while loops, a do while loop checks its condition at the bottom of the loop structure. This is the only difference between a do while loop and other loops.

Syntax of Do While Loop statements in C++
do {
   statement(s);
}while( condition );

 

dowhile Loop statements in C++

Flow chart diagram of Do While loop in C++

Working of Do While Loop
  • The codes inside the body of loop is executed at least once for the first time.
  • Then, the test condition is checked.
  • If the test condition is true, the body of loop is executed. This process continues until the test expression becomes false.
  • When the test condition is false, do…while loop is terminated.
Do While Loop sample program in C++

Run Online

//WAP to print "I am a Programmer" until USER enters 'x'
#include<iostream>
using namespace std;
int main()
{
	char myChar;
	do
	{
		cout<<"I am a programmer "<<"Enter x character to print the message again: ";
		cin>>myChar;
	}
	while(myChar=='x');
	return 0;	
}
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