联合线程（案例顾客买蛋糕 ：使用join()方法）

package com.niit.syntronized;

/**
* @author: Annie
* @date:2016年6月15日
* @description:线程联合(顾客到蛋糕店买蛋糕)使用join()方法
*/
public class ThreadJoin implements Runnable{

Thread joinThread;
Cake cake;
public void setThread(Thread t){
joinThread =t;
}
@Override
public void run() {
if(Thread.currentThread().getName().equals("顾客")){
System.out.println(Thread.currentThread().getName()+"正在等待"+joinThread.getName()+"制作生日蛋糕");
try {
joinThread.start();
joinThread.join();
} catch (InterruptedException e) {}

System.out.println(Thread.currentThread().getName()+"买了生日蛋糕：价钱" + cake.price);

}else if (Thread.currentThread()==joinThread){
System.out.println(Thread.currentThread().getName()+"开始制作蛋糕，请耐心等待.........");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
cake = new Cake("生日蛋糕",158);
System.out.println(joinThread.getName()+"制作完毕");
}

}

class Cake {
int price;
String name;

public Cake(String name,int price) {
this.price = price;
this.name = name;
}

}

public static void main(String[] args) {
ThreadJoin threadJoin = new ThreadJoin();
Thread customer = new Thread(threadJoin);
customer.setName("顾客");
Thread cakeMake = new Thread(threadJoin);
cakeMake.setName("蛋糕");
threadJoin.setThread(cakeMake);
customer.start();
}
}