While Loop

A while loop repeatedly executes a block of code as long as the specified condition is true.

Example

Creating a program that uses a while loop to print numbers from 1 to 5.

Pseudocode

BEGIN
    INITIALIZE i = 1
    WHILE i <= 5:
        PRINT i
        INCREMENT i by 1
    END WHILE
END

Syntax

while (condition) {
    // Code block to be executed repeatedly
    // This code runs as long as the condition is true
}

Code Example

C

int i = 1; // Initialize initial value
while (i <= 5) {
    printf("%d ", i); // Print the value of i
    i++;
}

C++

int i = 1;
while (i <= 5) {
    cout << i << " ";
    i++;
}

Java

int i = 1;
while (i <= 5) {
    System.out.print(i + " ");
    i++;
}

Python

i = 1
while i <= 5:
    print(i, end=" ")
    i += 1