Java入门---自定义异常

//自定义异常MyException
public class MyException extends Exception{
    //传递数字>10抛出异常
    private int detail;
    public MyException (int a){
        this.detail = a;
    }
    //toString 用于打印异常
    @Override
    public String toString() {
        return "MyException{"+"detail="+detail+"}";
    }
}
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public class Test {
    static void  test(int a)throws MyException{
        System.out.println("a="+a);
        if(a>10){
            throw new MyException(a);
        }
        System.out.println("ok");
    }

    public static void main(String[] args) {
        try {
            test(11);
        } catch (MyException e) {
            System.out.println("MyException="+e);
        }
    }
}