fac.java

java程序设计源代码

public class Fac
{
	public static void main(String args[])
	{
		System.out.println("Fac of 5 is " + fac( 5) );
	}
	static long fac( int n ){
		if( n==0 || n==1) return 1;
		else return fac(n-1) * n;
	}
	
}