Factorial of a Number
This program calculates factorial of a number using for loop.
Problem Statement
Write a Java program that calculates factorial of 5 using a for loop.
Source Code
| 1 | public class Factorial { |
| 2 | public static void main(String[] args) { |
| 3 | int num = 5; |
| 4 | int fact = 1; |
| 5 | for(int i=1; i<=num; i++) { |
| 6 | fact *= i; |
| 7 | } |
| 8 | System.out.println("Factorial of " + num + " = " + fact + " - Eduinq"); |
| 9 | } |
| 10 | } |
Program Output
Factorial of 5 = 120 - Eduinq
Explanation
The program initializes fact=1. The for loop multiplies fact by each number from 1 to 5. After the loop ends, fact holds the factorial value. This demonstrates how loops can perform repeated multiplication to calculate factorials. Shows how for loop can calculate factorial.