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While Loop in C

Example

#include<stdio.h>  // Include the standard input-output library

int main() {
    // Variable declaration
    int count = 1;

    // While loop to print numbers from 1 to 5
    while (count <= 5) {
        // Print the current value of count
        printf("Number: %d\n", count);
        
        // Increment count by 1
        count++;
    }

    // End of the main function
    return 0;
}
        

Explanation:

The while loop in C is a control flow statement that allows code to be executed repeatedly based on a given boolean condition. The condition is evaluated before the execution of the loop's body.

In this example:

• #include<stdio.h>: Includes the standard input-output library which allows us to use the printf function.
• int main(): The main function where the program execution begins.
• int count = 1;: Declares an integer variable count and initializes it to 1.
• while (count <= 5): The loop continues to execute as long as the condition count <= 5 is true.
• printf("Number: %d\n", count);: Prints the current value of count to the console.
• count++;: Increments the value of count by 1.
• return 0;: Ends the main function and returns 0 to the operating system, indicating that the program ended successfully.