自定义异常

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

    //传递参数>10时抛出并捕获异常
    private  int detail;

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

    //toString:异常的打印信息    Alt+insert-->toString

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

public class Application {
    //可能会存在异常的方法
    static void text(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("OK");
    }
    public static void main(String[] args) {
        try {
            //text(1);//OK
            text(11);//MyException==>MyException{detail=11}
        } catch (MyException e) {
            System.out.println("MyException==>"+e);
        }
    }
}