在Java中创建重复计时器提醒

问题描述

我想要一个每2秒更改一次自己的私有变量的类.我知道如果我做

I want to have a class that changes its own private variables every 2 seconds. I know that if I do something like

import java.util.Timer;
//...
Timer timer;
//...
timer.schedule(new ChangeSomething(), 2000);

它将在2秒后执行 ChangeSomething()，是否有办法告诉它每2秒执行一次操作，或者，如果我将其放入 ChangeSomething()

It will execute ChangeSomething() after 2 seconds, is there a way to tell it to do something every 2 seconds, or, If I put inside ChangeSomething()

    timer.schedule(new ChangeSomething(), 2000);

能行吗?

在旁注中， timer.cancel()到底能做什么?

On a side-note, what does timer.cancel() exactly do?

推荐答案

使用 timer.scheduleAtFixedRate()将其安排为每两秒重复一次:

Use timer.scheduleAtFixedRate() to schedule it to recur every two seconds:

从Javadoc中获取 Timer.cancel():

From the javadoc for Timer.cancel():

与一次执行单个任务的 Timer 的内部执行线程有关:

Relating to internal execution thread for a Timer that executes a single task once:

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