package?thread;

/**
?*?軍演舞臺
?*/
public?class?Stage?extends?Thread{
	
	@Override
	public?void?run()?{
		//創(chuàng)建紅藍方攻擊的實例
		ArmyRunnable?redAttack0?=?new?ArmyRunnable();
		ArmyRunnable?blueAttack0?=?new?ArmyRunnable();
		//創(chuàng)建線程
		Thread?redAttack?=?new?Thread(redAttack0,"紅方軍團");
		Thread?blueAttack?=?new?Thread(blueAttack0,"藍方軍團");
		
		//軍演戰(zhàn)斗的帷幕徐徐拉開
		System.out.println("軍演戰(zhàn)斗的序幕徐徐拉開······");
		try?{
			Thread.sleep(5000);
		}?catch?(InterruptedException?e1)?{
			//?TODO?Auto-generated?catch?block
			e1.printStackTrace();
		}
		
		//啟動線程，開始作戰(zhàn)
		redAttack.start();
		blueAttack.start();
		//關(guān)閉舞臺線程，保證軍演專心進行一會兒。否則程咬金會提前登場！
		//同時sleep時間太短（比如休眠25ms）會導(dǎo)致軍團線程插入程咬金線程，為什么？？？？？？？？？？？？？？？？？？？？？
		try?{
//			this.sleep(50);//這種方法也可以，或者Thread.sleep(50)
			sleep(50);//簡寫.
		}?catch?(InterruptedException?e)?{
			e.printStackTrace();
		}
		
		//半路殺出個Hero！
		System.out.println("半路殺出個程咬金！");
		//創(chuàng)建英雄程咬金線程，并開啟
		Hero?hero?=?new?Hero();
		Thread?chengyj?=?new?Thread(hero,"程咬金");
		chengyj.start();
		try?{
			chengyj.join();
		}?catch?(InterruptedException?e)?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace();
		}
		
		//結(jié)束兩個軍團線程，需要最后一遍循環(huán)結(jié)束
		redAttack0.keepRunning=false;
		blueAttack0.keepRunning=false;
		
		//給兩個軍團線程結(jié)束一點兒時間
		try?{
			Thread.sleep(2000);
		}?catch?(InterruptedException?e)?{
			//?TODO?Auto-generated?catch?block
			e.printStackTrace();
		}
		System.out.println("軍演結(jié)束！");
		
	}
	
	public?static?void?main(String[]?args)?{
		//啟動舞臺，開始觀戰(zhàn)
		new?Stage().start();
	}

}

第一次sleep時，50ms可以保證不被插隊，但是25ms就會出現(xiàn)下圖所示：