自定义异常

自定义异常

package com.exception.demo02;

//自定义的异常类
public class MyException extends Exception{

    //传递数字>10
    private int detail;



    public MyException(int a){
        this.detail = a;
    }

    //toString:异常的打印信息

    @Override
    public String toString() {
        return "MyException{" + "detail=" + detail + '}';
    }
}

package com.exception.demo02;

public class Test {

    //可能存在异常的方法
    static void test(int a) throws MyException {

        System.out.println("传递的参数为："+a);

        if(a>10){
            throw new MyException(a);//抛出
        }
        System.out.println("正常");
    }

    public static void main(String[] args) {
        try {
            test(100);
        } catch (MyException e) {
            //增加一些处理异常的代码
            System.out.println("MyException=>"+e);
        }
    }
}
传递的参数为：100
MyException=>MyException{detail=100}

Process finished with exit code 0