//异常处理
import java.util.Scanner;
public class test65 {public static void main(String[] args){int a,b,c;Scanner in=new Scanner(System.in);try {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);}catch (Exception e){System.out.println("输入有误");}}
}

运行结果