用于指令的Java Timer [英] Java Timer in For Instruction

问题描述

你好，

我想问你们一个问题。可以在for循环中初始化java计时器吗？这样定时器将使用从ArrayList获取的值运行一次。下面这个想法：

Hello there,
I want to ask you people a question. Can a java timer be initialized in a for loop? So that the timer will once run once with a value taken from an ArrayList. Something like the idea bellow:

  void myTimerMethod(){

   int size=ArrayList.getSize();
   Timer timer=new Timer();

   for(int i=0;i>size;i++){

     timer.schedule(new TimerTask(){

         public void run(){

           //do something here for a specified amount of time.
           //let's say display a character in console.

         }


     },ArrayList.get(i));  //set the timer to run only once, for a value taken from ArrayList.

   }


}

我想要要知道是否可以做到这样的事情。如果是的话，请你就如何实施这样的方法给我一个建议:)？...



非常感谢。

I want to know if something like this can be done. If yes, could you please give me an advice on how to implement such a method :) ?...

Thank you very much.

推荐答案

你一次又一次地把Timer对象搞砸了！



把它完全带入循环中。



我还会用自定义对象扩展它，为计时器添加名称/标识符属性：

your are initalizing the Timer object again and again!

Take it completly into the loop.

I would also extend it with a custom object adding a name/identifier attribute to the Timer:

public class MyTimer extends Timer{

  private final strID; // final -> has to be set by constructor

  public MyTimer(String strID){
    this.strID = strID;
  }

  public String getID(){
    return strID;
  }
}

因此您可以在运行时稍后识别定时器。

一个数字也可以作为ID。

So you can identifify the Timer later on during runtime.
A number would do also fine as ID.

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