This loop is exactly the reverse of the do…while loop. It checks for the condition at the beginning and later executes the given set of statements. Hence there might not be at leastone chance that the statements ate executed.

Syntax:

While(condition)

{

statements;

.

.

}

Example program:

//To display even values between 1 and 10

#include<iostream.h>
#include<conio.h>

void main()

{

int i=2;

while(i<=10)

{

cout<<i<<endl;

i+=2;

}

getch();

}

Output:

2

4

6

8

10

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Tagged as: what is While loop, while loop, While loop in C++, While loop in CPP, working of While loop