2017JAVA课程设计

1.团队课程设计博客链接
http://www.cnblogs.com/ltykm/p/7063663.html
2.个人负责模块或任务说明
本人任务：定时器具体功能的实现
3.自己的代码提交记录截图
4.自己负责模块或任务详细说明

实现定时器倒计时开始，暂停，继续，隐藏，显示功能的实现以及通过键盘对相关功能的操作。
        // 显示计时详细信息
    void createTimeInfo() {
        jpTimeInfo = new JPanel();
        jpTimeInfo.setLayout(null);
        jpTimeInfo.setBackground(new Color(154, 217, 250));
        jpTimeInfo.setSize(1200, 100);
        // 总秒数
        labSetTime = new JLabel("计时总秒数 : ", JLabel.CENTER);
        labSetTime.setFont(new Font("微软雅黑", 0, 20));
        jpTimeInfo.add(labSetTime).setBounds(0, 10, 400, 80);
        // 已过秒数
        labPassTime = new JLabel("已过秒数 : ", JLabel.CENTER);
        labPassTime.setFont(new Font("微软雅黑", 0, 20));
        jpTimeInfo.add(labPassTime).setBounds(400, 10, 400, 80);
        // 剩余秒数
        labRemainTime = new JLabel("剩余秒数 : ", JLabel.CENTER);
        labRemainTime.setFont(new Font("微软雅黑", 0, 20));
        jpTimeInfo.add(labRemainTime).setBounds(800, 10, 400, 80);

        jpSetting.add(jpTimeInfo).setBounds(0, 300, 1200, 100);
    }

    // 按钮监听
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == btnBegin) {
            if (tfdHours.getText().equals("") || tfdHours.getText() == null || tfdMinutes.getText().equals("")
                    || tfdMinutes.getText() == null || tfdSeconds.getText().equals("") || tfdSeconds == null) {
                JOptionPane.showMessageDialog(null, "请完成倒计时设置", "提示", JOptionPane.PLAIN_MESSAGE);
            } else {
                showTime = Time.getSeconds(new Integer(tfdHours.getText()), new Integer(tfdMinutes.getText()),
                        new Integer(tfdSeconds.getText()));
                setTime = showTime;
                // 改变面板值
                labTime.setText(Time.getTime(showTime));
                labSetTime.setText("计时总秒数 : " + setTime);
                tfdHours.setText("");
                tfdMinutes.setText("");
                tfdSeconds.setText("");

                flag = true;
                new Thread(this).start();
            }
        }
        if (e.getSource() == btnPause) {
            flag = false;
        }
        if (e.getSource() == btnContinue) {
            flag = true;
            new Thread(this).start();
        }
        if (e.getSource() == btnHidden) {
            this.remove(jpShowTime);
            repaint();
        }
        if (e.getSource() == btnShow) {
            this.add(jpShowTime).setBounds(0, 400, 1200, 400);
            repaint();
        }
        if (e.getSource() == btnExit) {
            System.exit(-1);
        }
    }

    public void run() {
        while (true) {
            if (showTime <= 0) {
                JOptionPane.showMessageDialog(null, "时间到", "提示", JOptionPane.PLAIN_MESSAGE);
                break;
            }
            // 判断暂停
            if (!flag) {
                break;
            }
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            showTime -= 1;
            labTime.setText(Time.getTime(showTime));
            labPassTime.setText("已过秒数 : " + (setTime - showTime));
            labRemainTime.setText("剩余秒数 : " + showTime);
        }
    }

    public void keyTyped(KeyEvent e) {
    }

    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_F8) {
            if (tfdHours.getText().equals("") || tfdHours.getText() == null || tfdMinutes.getText().equals("")
                    || tfdMinutes.getText() == null || tfdSeconds.getText().equals("") || tfdSeconds == null) {
                JOptionPane.showMessageDialog(null, "请完成倒计时设置", "提示", JOptionPane.PLAIN_MESSAGE);
            } else {
                showTime = Time.getSeconds(new Integer(tfdHours.getText()), new Integer(tfdMinutes.getText()),
                        new Integer(tfdSeconds.getText()));
                setTime = showTime;
                // 改变面板值
                labTime.setText(Time.getTime(showTime));
                labSetTime.setText("计时总秒数 : " + setTime);
                tfdHours.setText("");
                tfdMinutes.setText("");
                tfdSeconds.setText("");

                flag = true;
                new Thread(this).start();
            }
        } else if (e.getKeyCode() == KeyEvent.VK_F9) {
            flag = false;
        } else if (e.getKeyCode() == KeyEvent.VK_F10) {
            flag = true;
            new Thread(this).start();
        } else if (e.getKeyCode() == KeyEvent.VK_F11) {
            this.remove(jpShowTime);
            repaint();
        } else if (e.getKeyCode() == KeyEvent.VK_F12) {
            this.add(jpShowTime).setBounds(0, 400, 1200, 400);
            repaint();
        }
    }

    public void keyReleased(KeyEvent e) {
    }
}
    }

   public class Time {

public static String getTime(int seconds) {
    Integer hours = seconds / 3600;
    Integer minutes = seconds / 60;
    Integer second = seconds % 60;
    String time = "";
    if (minutes >= 60)
        minutes %= 60;
    if (hours < 10)
        time += "0" + hours + " : ";
    else
        time += hours + " : ";
    if (minutes < 10)
        time += "0" + minutes + " : ";
    else
        time += minutes + " : ";
    if (second < 10)
        time += "0" + second;
    else
        time += second;
    return time;
}

public static Integer getSeconds(Integer hours, Integer minutes, Integer seconds) {
    return hours * 3600 + minutes * 60 + seconds;
}

}
5.课程设计感想
巴特西

2017JAVA课程设计

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