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Java如何實現(xiàn)動態(tài)數(shù)字時鐘
小編給大家分享一下Java如何實現(xiàn)動態(tài)數(shù)字時鐘，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！
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構(gòu)建：
Clock繼承 JFrame 為運行頁面
ClockText 測試類 創(chuàng)建 Clock 對象
運行效果：
具體實現(xiàn)：
一、Clock類
四個JPnal 三個放時間 最后一個放日期
放時間的三個JPnal 分別加入 地點 時間 按鈕
最后一個按鈕添加日期
具體實現(xiàn)如下：
public class Clock extends JFrame {
private JPanel jPanelBeijing;
private JPanel jPanelNewYork;
private JPanel jPanelLondom;
private JPanel jPanelDate;
private boolean BeijingThreadFlag_IsStart = true;
private boolean NewYorkThreadFlag_IsStart = true;
private boolean LondonThreadFlag_IsStart = true;
public Clock() {
// TODO Auto-generated constructor stub
jPanelBeijing = new JPanel();
jPanelNewYork = new JPanel();
jPanelLondom = new JPanel();
jPanelDate = new JPanel();
iniRelations();
iniLayout();
jFrameClick();
setVisible(true);
setSize(480, 225);
setLocationRelativeTo(null);
}
private void iniLayout() {
jPanelBeijing.setLayout(new GridLayout(3, 1));
jPanelNewYork.setLayout(new GridLayout(3, 1));
jPanelLondom.setLayout(new GridLayout(3, 1));
}
// 關(guān)系
private void iniRelations() {
this.add(BorderLayout.WEST, jPanelBeijing);
this.add(BorderLayout.CENTER, jPanelNewYork);
this.add(BorderLayout.EAST, jPanelLondom);
this.add(BorderLayout.SOUTH, jPanelDate);
Font placeFont = new Font("楷體", Font.BOLD, 36);
JLabel jLabelBeijing = new JLabel("北京時間");
jLabelBeijing.setFont(placeFont);
jPanelBeijing.add(jLabelBeijing);
setWestPanel();
JLabel jLabelNewYork = new JLabel("紐約時間");
jLabelNewYork.setFont(placeFont);
jPanelNewYork.add(jLabelNewYork);
setCenterPanel();
JLabel jLabelLondon = new JLabel("倫敦時間");
jLabelLondon.setFont(placeFont);
jPanelLondom.add(jLabelLondon);
setEastPanel();
setDatePanel();
}
private void setWestPanel() {
// add time for SouthPanel
JLabel jLabelTime = new JLabel("加載中.");
jLabelTime.setFont(new Font("宋體", Font.BOLD, 30));
Timer timeAction = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent e) {
long timemillis = System.currentTimeMillis();
// 轉(zhuǎn)換日期顯示格式
SimpleDateFormat time = new SimpleDateFormat("HH:mm:ss ");
jLabelTime.setText(time.format(new Date(timemillis)));
}
});
timeAction.start();
jPanelBeijing.add(jLabelTime);
Button button = new Button("北京暫停");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (BeijingThreadFlag_IsStart) {
timeAction.stop();
button.setLabel("北京繼續(xù)");
BeijingThreadFlag_IsStart = false;
} else {
timeAction.start();
button.setLabel("北京暫停");
BeijingThreadFlag_IsStart = true ;
}
}
});
jPanelBeijing.add(button);
}
private void setCenterPanel() {
// add time for SouthPanel
JLabel jLabelTime = new JLabel("加載中.");
jLabelTime.setFont(new Font("宋體", Font.BOLD, 30));
Timer timeAction = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent e) {
long timemillis = System.currentTimeMillis();
// 轉(zhuǎn)換日期顯示格式
SimpleDateFormat time = new SimpleDateFormat("HH:mm:ss ");
jLabelTime.setText(time.format(new Date(timemillis - 13 * 60 * 60 * 1000)));
}
});
timeAction.start();
jPanelNewYork.add(jLabelTime);
Button button = new Button("紐約暫停");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (NewYorkThreadFlag_IsStart) {
timeAction.stop();
button.setLabel("紐約繼續(xù)");
NewYorkThreadFlag_IsStart = false;
} else {
timeAction.start();
button.setLabel("紐約暫停");
NewYorkThreadFlag_IsStart = true ;
}
}
});
jPanelNewYork.add(button);
}
private void setEastPanel() {
// add time for SouthPanel
// JLabel jLabelDate = new JLabel("Date");
JLabel jLabelTime = new JLabel("加載中.");
jLabelTime.setFont(new Font("宋體", Font.BOLD, 30));
Timer timeAction = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent e) {
long timemillis = System.currentTimeMillis();
// SimpleDateFormat date = new SimpleDateFormat("yyyy 年 MM 月 dd
// 日 ");
// jLabelDate.setText(" 當(dāng)前日期： " + date.format(new
// Date(timemillis)));
SimpleDateFormat time = new SimpleDateFormat("HH:mm:ss ");
jLabelTime.setText(time.format(new Time(timemillis - 8 * 60 * 60 * 1000)));
}
});
timeAction.start();
jPanelLondom.add(jLabelTime);
Button button = new Button("倫敦暫停");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (LondonThreadFlag_IsStart) {
timeAction.stop();
button.setLabel("倫敦繼續(xù)");
LondonThreadFlag_IsStart = false;
} else {
timeAction.start();
button.setLabel("倫敦暫停");
LondonThreadFlag_IsStart = true ;
}
}
});
jPanelLondom.add(button);
// jPanelLondom.add(jLabelDate);
}
private void setDatePanel() {
// add time for SouthPanel
JLabel jLabelDate = new JLabel("加載中.");
Timer timeAction = new Timer(1000, new ActionListener() {
public void actionPerformed(ActionEvent e) {
long timemillis = System.currentTimeMillis();
SimpleDateFormat date = new SimpleDateFormat("yyyy 年 MM 月 dd 日 ");
jLabelDate.setText(" 當(dāng)前日期： " + date.format(new Date(timemillis)));
}
});
timeAction.start();
jPanelDate.add(jLabelDate);
}
private void jFrameClick(){
setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);//設(shè)置不默認(rèn)關(guān)閉
addWindowListener(new WindowListener() {
@Override
public void windowOpened(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowIconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeiconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeactivated(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
int x = JOptionPane.showConfirmDialog(null, "確認(rèn)退出么？", "友情提示", JOptionPane.OK_CANCEL_OPTION,
JOptionPane.WARNING_MESSAGE);
if (x == 0) {
System.exit(0);
}
}
@Override
public void windowClosed(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowActivated(WindowEvent e) {
// TODO Auto-generated method stub
}
});
}
}二、創(chuàng)建ClockText類用于測試
public class ClockText{
public static void main(String[] args) {
new Clock();
}
}以上是“Java如何實現(xiàn)動態(tài)數(shù)字時鐘”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對大家有所幫助，如果還想學(xué)習(xí)更多知識，歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道！
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