Java時間暫停

Question

我是Java的初學者，我一直試圖解決這個計時器的事情，像3-4小時。已經嘗試了互聯網上的所有東西。

事情是，程序應該給用戶輸入任何東西來開始新遊戲或等待10秒的選項，他將被重定向到菜單。

這是我的代碼看起來像：

long startTime = System.currentTimeMillis(); 
long maxDurationInMilliseconds = 10000; 

while (System.currentTimeMillis() < startTime + maxDurationInMilliseconds) { 
Scanner end = new Scanner (System.in); 
System.out.println("Enter anything if you want to start a new game or wait 10 seconds and you will be redirected to the Menu"); 
    String value; 
    value = end.nextLine(); 

    if (value != null) { 
     playGame(); 
    } 

    else if (System.currentTimeMillis() > startTime + maxDurationInMilliseconds) { 
    // stop running early 
     showMainMenu(); 
    break; 
} 

}

但出於某種原因，我不能讓它開始工作，一直在努力得到這個工作和計算器是我最後一次機會。

編輯：謝謝大家的回覆。還沒有修復，從這個令人頭疼，現在是03:31。

Answer 1

UsingTimerTask（http://docs.oracle.com/javase/7/docs/api/java/util/TimerTask.html）：

public class MyClass { 
    private static final int TEN_SECONDS = 10000; 
    private String userInput = ""; 

    TimerTask timerTask = new TimerTask(){ 
     public void run() { 
      if(userInput.equals("")) 
       showMainMenu(); 
     } 
    }; 

    public void getInput() throws Exception { 
     Timer timer = new Timer(); 
     timer.schedule(timerTask, TEN_SECONDS); 

     System.out.println("Press any key or wait 10 seconds to be redirected to the Menu."); 
     BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); 
     userInput = in.readLine(); 

     timer.cancel(); 
     if (!userInput.equals("")) 
      playGame(); 
    } 

    public static void main(String[] args) { 
     try { 
      (new MyClass()).getInput(); 
     } catch(Exception e){ 
      System.out.println(e.getMessage()); 
     } 
    } 
} 

Answer 2

//make this booean part of the class and not function 
Boolean isStopped = false;  

System.out.println("Enter anything to start new game."); 
Scanner end = new Scanner (System.in); 

final Thread startThread = new Thread(new Runnable(){ 
    public void run(){ 
     try{ 
      Thread.sleep(10000); 
      if(!isStopped) 
       showMenu(); 
     }catch(Exception e){ 
      e.printStackTrace(); 
     } 
    } 
}); 
final Thread inputThread = new Thread(new Runnable(){ 
    public void run(){ 
     end.nextLine(); 
     isStopped = true; 
     startGame(); 
    } 
}); 
inputThread.start(); 
startThread.start();