//throw抛出异常
import java.util.Scanner;
public class test66{static class A {void d() throws Exception {int a, b, c;Scanner in = new Scanner(System.in);System.out.println("亲输入a的值");a = in.nextInt();System.out.println("请输入b的值");b = in.nextInt();c = a % b;System.out.println("余数为" + c);}}public static void main(String[] args) throws Exception{A aa=new A();//try{aa.d();//}catch (Exception e){System.out.println("输入有误");//}}
}

运行结果