how to find factorial number in java code example

Example 1: how to make factorial in java

class fact{
	static int fac(int n){
		int ans =1;
		for(int i=1; i<=n; i++){
			ans = ans*i;
		}
		return ans;
	}

	public static void main (String[] args){
		int f = 5;
		System.out.println(fac(f));
	}
}

Example 2: factorial number in java

int num1 = 6; 
 int num2 = 1;
    for(int a = 1; a<=num1; a++) {
        num2 = num2 * a;
    }
        System.out.println(num2);