Thread 執行緒並行

0623_Q2賽馬.java

public class Horse implements Runnable{
	static int rankh=1;	// 利用 static 使其他 Horse 共用此變數(名次)
	
	int runSpeed;	// 跑速不大於 5
	int sleepTime;	// 休息不大於 1 秒
	int totalSleepTime =0; // 總共是睡了多久啊
	
	int range=0;	// 起跑點
	int end = 500;	// 終點
	String horseName;
	
	public Horse(String name){
		horseName = name;
	}

	public void run() {
		while (range<end){
			runSpeed = (int)(Math.random()*6); // 跑速 (0<=x<6 -> 0~5)
			sleepTime = (int)(Math.random()*1001); // 打盹的時間 (0<=x<1001 -> 0~1000)
			totalSleepTime+=sleepTime; // 目前為止睡了多久
			try {
				Thread.sleep(sleepTime); // 小睡片刻
			} catch (InterruptedException e) {}

			range+=runSpeed; // 跑了多遠啊
			System.out.println(horseName + " 已經跑了 " + (range>500?500:range) + " 公尺了 !!"); // 賽跑情形
		}
		System.out.println("第 " + rankh++ + " 名為 " + horseName + " ,一共休息了 " + totalSleepTime + "秒.");
		
	}
}

0623_Q2賽馬main.java

public class HorseRun {

	public static void main(String[] args) {
		// 5 匹馬要出發了，請下注
		new Thread(new Horse("烈火")).start();
		new Thread(new Horse("火箭")).start();
		new Thread(new Horse("子彈")).start();
		new Thread(new Horse("追風")).start();
		new Thread(new Horse("迅雷")).start();
	}

}