/**
   * 继承 thread 的内部类，以买票例子
   */
  public class FirstThread extends Thread{
    private int i;
    private int ticket = 10;

    @Override
    public void run() {
      for (;i<20;i++) {
        //当继承thread 时，直接使用this 可以获取当前的线程,getName（） 获取当前线程的名字
//        Log.d(TAG,getName()+" "+i);

        if(this.ticket>0){
          Log.e(TAG, getName() + ", 卖票：ticket=" + ticket--);
        }
      }

    }
  }

  private void starTicketThread(){
    Log.d(TAG,"starTicketThread, "+Thread.currentThread().getName());

    FirstThread thread1 = new FirstThread();
    FirstThread thread2 = new FirstThread();
    FirstThread thread3 = new FirstThread();

    thread1.start();
    thread2.start();
    thread3.start();

    //开启3个线程进行买票，每个线程都卖了10张，总共就30张票

  }

/**
   * 实现 runnable 接口，创建线程类
   */
  public class SecondThread implements Runnable{

    private int i;
    private int ticket = 100;

    @Override
    public void run() {
      for (;i<20;i++) {
        //如果线程类实现 runnable 接口
        //获取当前的线程，只能用 Thread.currentThread() 获取当前的线程名
        Log.d(TAG,Thread.currentThread().getName()+" "+i);

        if(this.ticket>0){
          Log.e(TAG, Thread.currentThread().getName() + ", 卖票：ticket=" + ticket--);
        }
      }
    }
  }


  private void starTicketThread2(){
    Log.d(TAG,"starTicketThread2, "+Thread.currentThread().getName());

    SecondThread secondThread = new SecondThread();

    //通过new Thread(target,name)创建新的线程
    new Thread(secondThread,"买票人1").start();
    new Thread(secondThread,"买票人2").start();
    new Thread(secondThread,"买票人3").start();

    //虽然是开启了3个线程，但是一共只买了100张票
  }

/**
   * 使用callable 来实现线程类
   */
  public class ThirdThread implements Callable<Integer>{

    private int ticket = 20;

    @Override
    public Integer call(){

      for ( int i = 0;i<10;i++) {
        //获取当前的线程，只能用 Thread.currentThread() 获取当前的线程名
//        Log.d(TAG,Thread.currentThread().getName()+" "+i);

        if(this.ticket>0){
          Log.e(TAG, Thread.currentThread().getName() + ", 卖票：ticket=" + ticket--);
        }
      }


      return ticket;
    }
  }

  private void starCallableThread(){
    ThirdThread thirdThread = new ThirdThread();
    FutureTask<Integer> task = new FutureTask<Integer>(thirdThread);

    new Thread(task,"有返回值的线程").start();

    try {
      Integer integer = task.get();
      Log.d(TAG,"starCallableThread, 子线程的返回值="+integer);

    } catch (InterruptedException e) {
      e.printStackTrace();
    } catch (ExecutionException e) {
      e.printStackTrace();
    }

  }