Problem C: 异常1

1.题目描述

检测年龄，其中若为负数或大于等于200岁皆为异常，请将下列代码补充完整。
// 你的代码将被嵌入这里
class Main{
   public static void main(String[] args){
        Person p1=new Person("John",80);
        Person p2=new Person("peter",210);
        try{p1.isValid();}catch(AgeException e){System.out.println(e.getMessage());}
        try{p2.isValid();}catch(AgeException e){System.out.println(e.getMessage());}
    }
}

2.输出描述

John's age is valid!
peter's age is invalid!

3.代码实现

1.提交的代码

class AgeException extends Exception {public AgeException(String message) {super(message);}
}class Person {private String name;private int age;public Person(String name, int age) {this.name = name;this.age = age;}public void isValid() throws AgeException {if (age < 0 || age >= 200) {throw new AgeException(this.name + "'s age is invalid!");} else {System.out.println(this.name + "'s age is valid!");}}
}

2.完整代码

class AgeException extends Exception {public AgeException(String message) {super(message);}
}class Person {private String name;private int age;public Person(String name, int age) {this.name = name;this.age = age;}public void isValid() throws AgeException {if (age < 0 || age >= 200) {throw new AgeException(this.name + "'s age is invalid!");} else {System.out.println(this.name + "'s age is valid!");}}
}class Main {public static void main(String[] args) {Person p1 = new Person("John", 80);Person p2 = new Person("peter", 210);try {p1.isValid();} catch (AgeException e) {System.out.println(e.getMessage());}try {p2.isValid();} catch (AgeException e) {System.out.println(e.getMessage());}}
}