TicketStore

package test;

import java.util.concurrent.atomic.AtomicInteger;

public class TicketStore {
    static AtomicInteger atomicInteger = new AtomicInteger(0);
    String windows;

    TicketStore(String windows){
        this.windows=windows;
    }

    public void sell(){
    }
}

package test;

import org.junit.jupiter.api.Test;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class TicketStoreTest {

    @Test
    public void sell(){
        ScheduledExecutorService executorService = Executors.newScheduledThreadPool(3);
        executorService.scheduleAtFixedRate(new Windows("Windows3"),0,100, TimeUnit.MILLISECONDS);
        executorService.scheduleAtFixedRate(new Windows("Windows2"),0,100, TimeUnit.MILLISECONDS);
        executorService.scheduleAtFixedRate(new Windows("Windows1"),0,100, TimeUnit.MILLISECONDS);
    }
}

package test;

import java.util.Date;

public class Windows extends TicketStore implements Runnable {
        Windows(String windows){
            super(windows);
        }

        @Override
        public void run(){
            while (atomicInteger.get()<100){
                System.out.println("CurrentThread:"+Thread.currentThread()+"Windows:"+windows+" to sell ticket num:"+atomicInteger.getAndIncrement());

            }
        }

}