Java的Timer#schedule的方法参数是什么

Question

我目前正在尝试使用 Timer 以设定的时间间隔执行操作。

我从 Stack Overflow 中截取了一个片段，但是它没有解释，我正在努力弄清楚它的参数是什么意思。

有人可以向我解释一下该方法的参数吗？
即最后两个参数，5000, 5000 我不明白。

TimerTask damageInterval = new TimerTask() {
    public void run() {
        playerInfoPanel.health -= monsterDamage - playerInfoPanel.defenceLevel;
    }
};
            

inflictDamage.schedule(damageInterval, 5000, 5000);

Answer 1

JavaDocs are your friend

public void schedule(TimerTask task,
                     long delay,
                     long period)
Schedules the specified task for repeated fixed-delay execution, beginning after the specified delay. Subsequent executions take place at approximately regular intervals separated by the specified period.

In fixed-delay execution, each execution is scheduled relative to the actual execution time of the previous execution. If an execution is delayed for any reason (such as garbage collection or other background activity), subsequent executions will be delayed as well. In the long run, the frequency of execution will generally be slightly lower than the reciprocal of the specified period (assuming the system clock underlying Object.wait(long) is accurate).

Fixed-delay execution is appropriate for recurring activities that require "smoothness." In other words, it is appropriate for activities where it is more important to keep the frequency accurate in the short run than in the long run. This includes most animation tasks, such as blinking a cursor at regular intervals. It also includes tasks wherein regular activity is performed in response to human input, such as automatically repeating a character as long as a key is held down.

Parameters:
task - task to be scheduled.
delay - delay in milliseconds before task is to be executed. period - time in milliseconds between successive task executions.

Java的Timer#schedule的方法参数是什么

What are the method parameters of Java's Timer#schedule

java

schedule

timer

jpanel

jframe