小编use*_*280的帖子

故障的图像

我通过从教科书中复制示例来学习Java,一旦我使用GUI类,我就遇到了一些奇怪的故障,如果这是正确的术语.正如您在图像上看到的那样,部分文本丢失了.

生成此对话框的代码也不复杂:

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.Timer;

public class InnerClassTest {
    public static void main(String[] args) {
        TalkingClock clock = new TalkingClock(1000, true);
        clock.start();

        // keep program running until user selects "OK"
        JOptionPane.showMessageDialog(null, "Quit program?");
        System.exit(0);
    }
}

class TalkingClock {
    /*
     * COnstructs a talking clock
     * @param interval the interval between messages (in milliseconds)
     * @param beep true if the clock should beep
    */
    public TalkingClock(int interval, boolean beep) {
        this.interval = …