//1.打印问题
//2.阶乘问题
public class exercise02{
	public static void main(String[] args){
		Test t1 = new Test();
		//1.打印问题
		t1.print(6);//输出2,3,4,5,6
		//2.阶乘问题
		int result = t1.jiecheng(5);
		System.out.println("result = " + result);
	}
}

class Test{
	//1.打印问题
	public void print(int n){
		if(n > 2){
			print(n - 1);
		}
			System.out.println("n=" + n);
	}
	//2.阶乘问题
	public int jiecheng(int n){
		if(n == 1){
			return 1;
		}else{
			return jiecheng(n-1) * n;
		}
	}
}