老师布置的奇葩作业（喝茶问题）
package practice;
/*
* 6、
老妈想喝茶，喝茶需要有茶具和茶叶，家里没有就需要两个儿子，
各自去买，买的东西不一样，花费时间不一样，例如，老大去买茶叶需要10分钟，
老二去买茶具需要8分钟，一起出的门，老二回来时，老妈依旧不能如愿喝茶，
只有当两个儿子都回到家时，才能如愿煮水泡茶喝
*/
public class TeaTest {
public static void main(String[] args) {
Desk desk = new Desk();
Mother m = new Mother(desk);
m.start();
}
}
class Mother extends Thread {
private Desk desk;
public Mother(Desk desk) {
this.desk = desk;
}
public void run() {
System.out.println("想喝茶");
synchronized (desk) {
if (desk.getCup() == 0) {
System.out.println("想喝茶，没茶杯，mike去买");
Mike mike = new Mike(desk);
mike.start();
}
if (desk.getTea() == 0) {
System.out.println("想喝茶，没茶叶，tom去买");
Tom tom = new Tom(desk);
tom.start();
}
while(desk.getTea() == 0||desk.getCup() == 0) {
try {
desk.wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
System.out.println("可以喝茶");
}
}
}
class Mike extends Thread {
private Desk desk;
public Mike(Desk desk) {
this.desk = desk;
}
public void run() {
System.out.println("我是mike,老妈叫我买茶杯");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
desk.setCup(1);
}
}
class Tom extends Thread {
private Desk desk;
public Tom(Desk desk) {
this.desk = desk;
}
public void run() {
System.out.println("我是tom,老妈叫我买茶叶");
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
desk.setTea(1);
}
}
class Desk extends Thread {
private int cup = 0;
private int tea = 0;
public int getTea() {
return tea;
}
public int getCup() {
return cup;
}
public synchronized void setCup(int cup) {
this.cup = cup;
this.notify();
System.out.println("我是mike，茶杯买回来了，叫醒老妈");
}
public synchronized void setTea(int tea) {
this.tea = tea;
this.notify();
System.out.println("我是tom ，茶叶买回来了，叫醒老妈");
}
}
