medium01TestClass.java

public class medium01Test{

    public static void main(String[] args) {
        SyncThread syncThread = new SyncThread();
        Thread F_thread1 = new Thread(new SyncThread(), "F_thread1");
        Thread F_thread2 = new Thread(new SyncThread(), "F_thread2");
        Thread F_thread3 = new Thread(syncThread, "F_thread3");
        Thread F_thread4 = new Thread(syncThread, "F_thread4");
        F_thread1.start();
        F_thread2.start();
        F_thread3.start();
        F_thread4.start();
    }
}
F_thread1_Sync: 22:53:35
F_thread4_Sync: 22:53:35
F_thread3_Sync: 22:53:35
F_thread1_Sync_Start: 22:53:35
F_thread2_Sync: 22:53:35
F_thread1_Sync_End: 22:53:37
F_thread2_Sync_Start: 22:53:37
F_thread2_Sync_End: 22:53:39
F_thread3_Sync_Start: 22:53:39
F_thread3_Sync_End: 22:53:41
F_thread4_Sync_Start: 22:53:41
F_thread4_Sync_End: 22:53:43