Loop.java

import java.io.*;
import java.util.*;

public class Loop {

    public int fact(int n) {
	if (n == 1) {
	    return 1;
	}
	else {
	    return n * fact(n - 1);
	}
    }    

    public int fact2(int n) {
	int ans = 1;
	
	while (n > 0) {
	    ans = ans * n;
	    n = n - 1;
	}	
	
	return ans;
    }

}