程序设计: 猫大叫一声，所有的老鼠都开始逃跑，主人被惊醒(java编写)

Question

java 程序设计: 猫大叫一声，所有的老鼠都开始逃跑，主人被惊醒。

要求： 1.要有联动性，老鼠和主人的行为是被动的。

2.考虑可扩展性，猫的叫声可能引起其他联动效应。（可以使用观察者模式或者事件监听机制）

Answer 1

1:
public interface Number {

public int nextInt();

}
2:
import java.util.Random;

public class Cat implements Number{

private String name;
private char sex;

public Cat() {

}

public Cat(String aNmae, char aSex) {
this.name = aNmae;
this.sex = aSex;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public char getSex() {
return sex;
}

public void setSex(char sex) {
this.sex = sex;
}

public int nextInt() {

int aInt;
aInt = new Random().nextInt(3);
return aInt;
}
}
3:
import java.util.Random;

public class Mouse implements Number{

private String name;
private char sex;

public Mouse() {

}

public Mouse(String aNmae, char aSex) {
this.name = aNmae;
this.sex = aSex;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public char getSex() {
return sex;
}

public void setSex(char sex) {
this.sex = sex;
}

public int nextInt() {
int aInt;
aInt = new Random().nextInt(3);
return aInt;
}

}
4:
public class Stage {

public static void main(String[] args) {

Cat cat = new Cat("Tom" , 'M');
Mouse mouse = new Mouse("Jerry", 'M');
int tint;
int mint;
tint = cat.nextInt();
mint = mouse.nextInt();
String result = ((tint > mint)? "抓到" : "跑了");
System.out.println("结果为 : " + result);

}

}