package thread;
class ThreadTest3 implements Runnable{
private int tickets=100;
String str=new String("");
public void run() {
if(str.equals("method")){
while(true){
sale();
}
}else{
while(true){
synchronized(this){
if(tickets>0){
try{
Thread.sleep(10);
}catch(Exception e) {
e.printStackTrace();
}
System.out.println("TEST "+Thread.currentThread().getName()+" is saling ticket "+ tickets--);
}
// System.out.println("TEST "+Thread.currentThread().getName()+" is saling ticket "+ tickets--);
}
}
}
}
public synchronized void sale() {
if(tickets>0){
try{
Thread.sleep(10);
}catch(Exception e){
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+" is saling ticket "+ tickets--);
}
// System.out.println(Thread.currentThread().getName()+" is saling ticket "+ tickets--);
}
}
public class ThreadDemo6 {
public static void main(String[] args) {
ThreadTest3 t3=new ThreadTest3();
new Thread(t3).start();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
t3.str=new String("method");
new Thread(t3).start();
}
}
![Java小案例——随机数猜测随机数猜测[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)