模拟时钟StillClock类

Java基础篇中的StillClock类用于画出时钟以方便Java进阶篇P228第二十九章多线程(第八版)ClockWithAudio类的调用。 package 多线程练习; import java.awt.*; import javax.swing.*; import java.util.*; public class StillClock extends JPanel { private int hour; private int minute; private int second; /** Construct a default clock with the curre