馬上又要到情人節了，再不解風情的人也得向女友表示表示。作為一個程序員，示愛的時候自然也要用我們自己的方式。
這裡給大家上傳一段我在今年情人節的時候寫給女朋友的一段簡單的Java Swing代碼，主要定義了一個對話框，讓女友選擇是不是喜歡自己。如果她選了“是”，皆大歡喜，如果她想選“不”，哼哼。 。 。看一下截圖吧。
代碼效果圖：
接下來不廢話，直接上代碼了。新版本已上傳，也歡迎大家到我的github上下載和改進代碼（點此轉到github）。
另外就是因為這個代碼當時是在情人節的時候寫的，對話框標題欄的信息也是與情人節相關，要想在其他的節日使用，只需要修改幾個字符串就可以了，我在需要修改的地方都打了中文註釋，大家可以很容易地找到。不過正如我在註釋裡寫的那樣，這個程序頂多是你倆之間一個溫馨的小玩笑，你要是想今晚嘿嘿嘿的話，真正的禮物還是得備好哦: )
package gift_package; import java.awt.Container; import java.awt.Font; import java.awt.Toolkit; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingConstants; import javax.swing.WindowConstants; /** * A funny code for your lover, which creates a frame that let her/him choose * whether she/he loves you. If she/he choose 'YES', everythingis normal, but * if she/he tries to choose 'NO', something interestingwould happen. First, * the 'NO' button would change its position, it lookes like it attemps to escape * from being clicked. After a couple of rounds, if she/he still want to click * 'NO' button, the 'NO' button and 'YES' button will exchange their position. * Besides, the window will cannot be closed untill the 'YES' button is clicked. * * To use this code, please make sure her/his computer has installed the JRE. * * Note that this code is just a little joke, DO NOT USE IT AS A REAL VALENTIN'S * DAY GIFT, if you want to get laid at Valentin's Day, use ROSE, WINE and FANCY * RESTAURANT, if you want to keep your mate's love, use YOUR HEART. * * @author rainman_zjd * @version initialt version, 2016.3.20 */ public class HappyValentinsDay extends JFrame { private static final long serialVersionUID = 1L; private JLabel label; private JButton button1; private JButton button2; private JDialog dialog1; private int enterCount = 0; private boolean chooseFlag = false; public static final int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth(); public static final int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight(); public HappyValentinsDay() { label = new JLabel("Hi, my name is rainman_zjd, I love you, do you love me?", SwingConstants.CENTER); // 自行修改button1 = new JButton("No, I don't!"); // 按鈕1 button2 = new JButton("Yes, I do!"); // 按鈕2 dialog1 = new JDialog(this); // 創建一個新的對話框，並設置父窗口為當前窗體windowInitial(); setWindowListener(); }// constructor public HappyValentinsDay(String labelTxt, String bt1Txt, String bt2Txt) { label = new JLabel(labelTxt, SwingConstants.CENTER); button1 = new JButton(bt1Txt); button2 = new JButton(bt2Txt); dialog1 = new JDialog(this); windowInitial(); chooseFlag = true; setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE); setVisible(true); }// constructor_String /** * 窗體初始化，使用的是絕對佈局*/ private void windowInitial() { setDialog(dialog1, "Awesome!", "Meeting you is the luckest thing in my life!"); // 自行修改label.setFont(new Font("", Font.BOLD, 17)); label.setBounds(0, 30, 480, 20); /** * 以匿名內部類的方式為按鈕1添加鼠標事件監聽器，當鼠標進入按鈕1後將突然改變自己的位置*/ button1.addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent e) {return;} @Override public void mousePressed(MouseEvent e) {return;} @Override public void mouseExited(MouseEvent e) {return;} @Override public void mouseEntered(MouseEvent e) { switch(enterCount) { case 0: button1.setBounds(75, 60, 110, 30); HappyValentinsDay.this.repaint(); ++enterCount; break; case 1: button1.setBounds(75, 110, 110, 30); HappyValentinsDay.this.repaint(); ++enterCount; break; case 2: button1.setBounds(155, 60, 110, 30); HappyValentinsDay.this.repaint(); ++enterCount; break; case 3: button1.setBounds(75, 110, 110, 30); HappyValentinsDay.this.repaint(); ++enterCount; break; case 4: button1.setBounds(310, 110, 110, 30); button2.setBounds(75, 110, 110, 30); HappyValentinsDay.this.repaint(); ++enterCount; break; case 5: button1.setBounds(75, 110, 110, 30); button2.setBounds(310, 110, 110, 30); HappyValentinsDay.this.repaint(); enterCount = 0; break; }// seitch_entercount }// mouseEntered @Override public void mouseClicked(MouseEvent e) { dialog1.setVisible(true); setDefaultCloseOperation(DISPOSE_ON_CLOSE); }// mouseClicked });// MouseListener button1.setBounds(70, 110, 110, 30); button1.setFont(new Font("", Font.BOLD, 13)); /** * 以匿名內部類的方式為按鈕2添加鼠標事件監聽器，按下時顯示對話框*/ button2.addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent e) {return;} @Override public void mousePressed(MouseEvent e) {return;} @Override public void mouseExited(MouseEvent e) {return;} @Override public void mouseEntered(MouseEvent e) {return;} @Override public void mouseClicked(MouseEvent e) { dialog1.setVisible(true); chooseFlag = true; setDefaultCloseOperation(DISPOSE_ON_CLOSE); }// mouseClicked });// MouseListener button2.setBounds(310, 110, 110, 30); button2.setFont(new Font("", Font.BOLD, 13)); Container c = getContentPane(); c.setLayout(null); c.add(label); c.add(button1); c.add(button2); setTitle("Happy Valentin's Day!"); // 自行修改setBounds(screenWidth/2-250, screenHeight/2-100, 500, 200); setResizable(false); setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); }// windowInitial /** * 設置對話框屬性* @param diag * @param tittle * @param txt */ private void setDialog(JDialog diag, String tittle, String txt) { JLabel diagLabel = new JLabel(txt, SwingConstants.CENTER); diagLabel.setFont(new Font("", Font.BOLD, 17)); diagLabel.setBounds(0, 40, 430, 20); JButton diagBut = new JButton("Confirm"); diagBut.setFont(new Font("", Font.BOLD, 14)); diagBut.setBounds(155, 100, 100, 30); diagBut.addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent e) {return;} @Override public void mousePressed(MouseEvent e) {return;} @Override public void mouseExited(MouseEvent e) {return;} @Override public void mouseEntered(MouseEvent e) {return;} @Override public void mouseClicked(MouseEvent e) { diag.dispose(); if (chooseFlag) System.exit(0); }// mouseClicked }); diag.setTitle(tittle); diag.setBounds(screenWidth/2-225, screenHeight/2-100, 450, 200); diag.setLayout(null); diag.add(diagBut); diag.add(diagLabel); }// setDialog /** * 設置單擊窗口關閉按鈕時的動作*/ private void setWindowListener() { this.addWindowListener(new WindowListener() { @Override public void windowOpened(WindowEvent e) {return;} @Override public void windowIconified(WindowEvent e) {return;} @Override public void windowDeiconified(WindowEvent e) {return;} @Override public void windowDeactivated(WindowEvent e) {return;} @Override public void windowClosed(WindowEvent e) {return;} @Override public void windowActivated(WindowEvent e) {return;} @Override public void windowClosing(WindowEvent e) { if(!chooseFlag) { String labelTxt = "Is your default choose /"Yes, I do!/"?"; // 自行修改new HappyValentinsDay(labelTxt, "NO", "YES"); }// if }// windowClosing });// WindowListener }// setWindowListener public static void main(String[] args) { HappyValentinsDay myApp = new HappyValentinsDay(); myApp.setVisible(true); }// main }/*HappyValentinsDay*/以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持武林網，祝大家情人節快樂