Problem D: 异常2

 1.题目描述

检查危险品程序：生成货物类、机器类，货物类有属性name，机器类有检测的check方法，若货物名称是炸弹、毒药、刀具，则抛出异常提示。

代码如下：

import java.util.Scanner;
class goods{
  String name;
  public void setName(String name){
      this.name=name;
  }
  public String getName(){
     return name;
  }
}

// 你的代码将嵌入这里
class Main{
  public static void main(String args[]){
     Scanner sc=new Scanner(System.in);
     String input=sc.nextLine();
     goods g=new goods();
     g.setName(input);
     machine m=new machine(g);
     try{
        m.check();
     }catch(dangerException e){
        e.showMessage();
     }
  }
}

2.输入描述

bomb 或 poison 或 knife

3.输出描述

bomb 或 poison 或 knife

Dangerous!!

 4.代码实现

1.提交代码

class dangerException extends Exception {public dangerException(String message) {super(message);}public void showMessage() {System.out.println(this.getMessage());}
}class machine {goods g;public machine(goods g) {this.g = g;}public void check() throws dangerException {String name = g.getName();if (name.equalsIgnoreCase("bomb") ||name.equalsIgnoreCase("poison") ||name.equalsIgnoreCase("knife")) {throw new dangerException(name + "\nDangerous!!");}}
}

2.完整代码

import java.util.Scanner;class goods {String name;public void setName(String name) {this.name = name;}public String getName() {return name;}
}class dangerException extends Exception {public dangerException(String message) {super(message);}public void showMessage() {System.out.println(this.getMessage());}
}class machine {goods g;public machine(goods g) {this.g = g;}public void check() throws dangerException {String name = g.getName();if (name.equalsIgnoreCase("bomb") ||name.equalsIgnoreCase("poison") ||name.equalsIgnoreCase("knife")) {throw new dangerException(name + "\nDangerous!!");}}
}class Main {public static void main(String args[]) {Scanner sc = new Scanner(System.in);String input = sc.nextLine();goods g = new goods();g.setName(input);machine m = new machine(g);try {m.check();} catch (dangerException e) {e.showMessage();}}
}