情人节写给女朋友Java Swing代码程序

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!"); // 按钮1     button2 = new JButton("Yes, I do!");  // 按钮2     dialog1 = new JDialog(this);      // 创建一个新的对话框，并设置父窗口为当前窗体     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     /**    * 窗体初始化，使用的是绝对布局    */   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);          /**      * 以匿名内部类的方式为按钮1添加鼠标事件监听器，当鼠标进入按钮1后将突然改变自己的位置      */     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));          /**      * 以匿名内部类的方式为按钮2添加鼠标事件监听器，按下时显示对话框      */     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     /**    * 设置对话框属性    * @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   /**    * 设置单击窗口关闭按钮时的动作    */   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*/