用两个线程玩猜数字游戏，第一个线程负责随机给出1~100之间的一个整数，第二个线程负责猜出这个数。要求每当第二个线程给出自己的猜测后，第一个线程都会提示“猜小了”、“猜大了”或“猜对

import java.lang.Runnable;
import java.lang.Thread;
  public class GuessNumber {
	  public static void main(String[] args) {
		Number number = new Number();
		number.giveNumberThread.start();
		number.guessNumberThread.start();
		}
		}
		class Number implements Runnable {
		int realNumber,guessNumber,min = 1,max = 100,message;
		final int SMALLER = -1,LARGER = 1,SUCCESS = 8;
		Thread giveNumberThread,guessNumberThread;
		Number() {
		giveNumberThread = new Thread(this);
		guessNumberThread = new Thread(this);
		}
		
		public void run() {
	
		for (int count = 1; true; count++) {
		if (Thread.currentThread() == giveNumberThread) {
		if (count == 1) {
		realNumber = (int) (Math.random() * 100) + 1;
		System.out.println("随机给你一个数为"+realNumber+",猜猜是多少");
		} else {
		if (realNumber > guessNumber) {
		message = SMALLER;
		System.out.println("你猜小了");
		} else if (realNumber < guessNumber) {
		message = LARGER;
		System.out.println("你猜大了");
		} else {
		message = SUCCESS;
		System.out.println("恭喜,你猜对了");
		return;
		}
		}
		try {
		Thread.sleep(2000);
		} catch (Exception e) {
		}
		}
		if (Thread.currentThread() == guessNumberThread) {
		if (count == 1) {
		guessNumber = (min + max) / 2;
		System.out.println("我第" + count + "次猜这个数:" + guessNumber);
		} else {
		if (message == SMALLER) {
		min = guessNumber;
		guessNumber = (min + max) / 2;
		System.out.println("我第" + count + "次猜这个数是"
		+ guessNumber);
		} else if (message == LARGER) {
		max = guessNumber;
		guessNumber = (min + max) / 2;
		System.out.println("我第" + count + "次猜这个数是"
		+ guessNumber);
		} else if (message == SUCCESS) {
		System.out.println("我成功了！");
		return;
		}
		}
		try {
		Thread.sleep(1500);
		} catch (Exception e) {
		}
		}
		}
		}
		

	}

运行结果：