자바 쓰레드 자판기 예제

자바의 쓰레드를 사용해서 자판기를 예제로 사용하였음..

import java.util.Stack;

class Producer implements Runnable{
 private AutoMachine machine;
 
 Producer(AutoMachine machine){
  this.machine = machine;
 }
 
 public void run(){
  for(int i = 0; i<10; i++){
   machine.putDrink("음료수 " + i);
   System.out.println("Producer : 음료수"+ i);
   try{
    Thread.sleep(500);
   }
   catch(Exception err){}
  }
 }
}
class Consumer implements Runnable{
 private AutoMachine machine;
 
 Consumer(AutoMachine machine){
  this.machine = machine;
 }
 
 public void run(){
  for(int i=0; i<10; i++){
   System.out.println("Consumer: " + machine.getDrink());
   try{
    Thread.sleep(500);
   }
   catch(Exception err){}
  }
 }
}

class AutoMachine{
 Stack store = new Stack();
 
 public synchronized String getDrink(){
  while(store.isEmpty()){
   try{
   this.wait();
   }
   catch(InterruptedException err){}
  }
  return store.pop().toString();
 }
 public synchronized void putDrink(String drink){
  this.notify();
  store.push(drink);
 }
}
public class ThreadTest2 {
 public static void main(String[] args) {
  AutoMachine drink = new AutoMachine();
 
  Producer pro = new Producer(drink);
  Consumer con = new Consumer(drink);
 
  Thread prot = new Thread(pro);
  Thread cont = new Thread(con);
 
  prot.start();
  cont.start();

 }

}