Java线程同步问题之警察抓小偷

public class policemanAndThief {

int x, y;

Boolean isCatched = false;

/**

* */

public static void main(String[] args) {

policemanAndThief pt = new policemanAndThief();

Policeman p = pt.new Policeman("YiJichangkong");

Thief t = pt.new Thief("Liu du du");

p.start();

t.start();

}

public class Policeman extends Thread {

Policeman() {

super();

}

Policeman(String s) {

super(s);

}

public void run() {

while (true) {

for (x = -100; x <= 100; x += (int) (Math.random() * 6 + 1)) {

System.out.println("Police " + this.getName() + " are at: "

+ x);

/*

* try { this.sleep((int)(Math.random()3000+1000)); } catch

* (InterruptedException e) { e.printStackTrace(); }

*/

Catch();

}

}

}

}

public class Thief extends Thread {

public Thief(String s) {

super(s);

}

public void run() {

while (true) {

for (y = -100; y <= 100; y += (int) (Math.random() * 6 + 1)) {

System.out.println("Thief " + this.getName() + " are At: "

+ y);

/*

* try { this.sleep(1000); } catch (InterruptedException e)

* { e.printStackTrace(); }

*/

Catch();

}

}

}

}

public void Catch() {

if (x >= -10 && x <= 10 && y >= -10 && y <= 10) {

System.out.println("police at: " + x + " thief at: " + y);

System.out.println("The thief is catched!");

System.exit(0);

}

}

}