多线程共享数据的简单例子

package com.hs.thread.ticket;

/**

• Created by husong on 2018/2/26.
  */
  public class TicketHandler {

  private Integer ticketNum = 100;

  public synchronized int sell(){
  if(ticketNum>0){
  try {
  Thread.sleep(1000);
  } catch (InterruptedException e) {
  e.printStackTrace();
  }
  ticketNum --;
  System.out.println(Thread.currentThread().getName()+"抢到一张票！"+"余票数量："+ticketNum);
  }
  return ticketNum;
  }

  public synchronized int tuiPiao(){
  try {
  Thread.sleep(1000);
  } catch (InterruptedException e) {
  e.printStackTrace();
  }
  ticketNum++;
  System.out.println(Thread.currentThread().getName()+"退了一张票！"+"余票数量："+ticketNum);
  return ticketNum;
  }

  public static void main(String[] args) {
  TicketHandler ticketHandler = new TicketHandler();
  //5个人买票
  for (int i = 1; i <= 5; i++) {
  Thread thread = new Thread(new Runnable() {
  @Override
  public void run() {
  Integer num = ticketHandler.sell();
  }
  });
  thread.setName("旅客"+i);
  thread.start();
  }
  //5个人退票
  for (int i = 6; i <= 10; i++) {
  Thread thread = new Thread(new Runnable() {
  @Override
  public void run() {
  Integer num = ticketHandler.tuiPiao();
  }
  });
  thread.setName("旅客"+i);
  thread.start();
  }
  }
  }