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For Loop in C

Example

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

int main() {
    // For loop to print numbers from 1 to 5
    for (int i = 1; i <= 5; i++) {
        // Print the current value of i
        printf("Number: %d\n", i);
    }

    // End of the main function
    return 0;
}
        

Explanation:

The for loop in C is a control flow statement that allows code to be executed repeatedly based on a given condition. It consists of three parts: initialization, condition, and increment/decrement.

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.
• for (int i = 1; i <= 5; i++): The for loop starts with the initialization of the variable i to 1. The loop continues to execute as long as the condition i <= 5 is true. After each iteration, the value of i is incremented by 1.
• printf("Number: %d\n", i);: Prints the current value of i to the console.
• return 0;: Ends the main function and returns 0 to the operating system, indicating that the program ended successfully.

In summary, the for loop is a versatile control flow statement that is commonly used for iterating over a range of values. It is particularly useful when the number of iterations is known beforehand.