java例子 阶乘的递归实现

代码部分

public class factorial {
    public static void main(String[] args) {
        int num=factor(5);
        System.out.println(num);
    }
    public static int factor(int n){
        if(n==1){
            return 1;
        }else{
            int num=n*factor(n-1);
            return num;
        }
    }
}

 运行结果

120

Process finished with exit code 0