?? frame1.java
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package ex11_05;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame { JPanel contentPane; JLabel jLabel1 = new JLabel(); JMenuBar jMenuBar1 = new JMenuBar(); JMenu jMenu1 = new JMenu(); JMenuItem jMenuItem1 = new JMenuItem(); JMenu jMenu2 = new JMenu(); JMenu jMenu3 = new JMenu(); JCheckBoxMenuItem jCheckBoxMenuItem1 = new JCheckBoxMenuItem(); JCheckBoxMenuItem jCheckBoxMenuItem2 = new JCheckBoxMenuItem(); JMenu jMenu4 = new JMenu(); JMenuItem jMenuItem2 = new JMenuItem(); JMenuItem jMenuItem3 = new JMenuItem(); JMenuItem jMenuItem4 = new JMenuItem(); JMenuItem jMenuItem5 = new JMenuItem(); JPopupMenu jPopupMenu1 = new JPopupMenu(); /**Construct the frame*/ public Frame1() { enableEvents(AWTEvent.WINDOW_EVENT_MASK); try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } /**Component initialization*/ private void jbInit() throws Exception { //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]"))); contentPane = (JPanel) this.getContentPane(); jLabel1.setFont(new java.awt.Font("Dialog", 0, 18)); jLabel1.setText("菜單使用范例"); jLabel1.setBounds(new Rectangle(45, 89, 138, 35)); contentPane.setLayout(null); this.setJMenuBar(jMenuBar1); this.setSize(new Dimension(400, 300)); this.setTitle("Frame Title"); this.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(MouseEvent e) { this_mouseClicked(e); } }); this.addWindowListener(new java.awt.event.WindowAdapter() { public void windowOpened(WindowEvent e) { this_windowOpened(e); } }); jMenu1.setText("文件"); jMenuItem1.setText("關(guān)閉"); jMenuItem1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jMenuItem1_actionPerformed(e); } }); jMenu2.setText("字體"); jMenu3.setText("樣式"); jCheckBoxMenuItem1.setText("粗體"); jCheckBoxMenuItem1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jCheckBoxMenuItem1_actionPerformed(e); } }); jCheckBoxMenuItem2.setText("斜體"); jCheckBoxMenuItem2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jCheckBoxMenuItem2_actionPerformed(e); } }); jMenu4.setText("顏色"); jMenuItem2.setText("黑色"); jMenuItem2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jMenuItem2_actionPerformed(e); } }); jMenuItem3.setText("藍(lán)色"); jMenuItem3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jMenuItem3_actionPerformed(e); } }); jMenuItem4.setText("紅色"); jMenuItem4.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jMenuItem4_actionPerformed(e); } }); jMenuItem5.setText("綠色"); jMenuItem5.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(ActionEvent e) { jMenuItem5_actionPerformed(e); } }); contentPane.add(jLabel1, null); jMenuBar1.add(jMenu1); jMenuBar1.add(jMenu2); jMenu1.add(jMenuItem1); jMenu2.add(jMenu3); jMenu2.add(jMenu4); jMenu3.add(jCheckBoxMenuItem1); jMenu3.add(jCheckBoxMenuItem2); jMenu4.add(jMenuItem2); jMenu4.add(jMenuItem3); jMenu4.add(jMenuItem4); jMenu4.add(jMenuItem5); } /**Overridden so we can exit when window is closed*/ protected void processWindowEvent(WindowEvent e) { super.processWindowEvent(e); if (e.getID() == WindowEvent.WINDOW_CLOSING) { System.exit(0); } } /*************************************************///黑色文字 void jMenuItem2_actionPerformed(ActionEvent e) {jLabel1.setForeground(Color.black);jMenuItem2.setEnabled(false);jMenuItem3.setEnabled(true);jMenuItem4.setEnabled(true);jMenuItem5.setEnabled(true); }/*************************************************///藍(lán)色 void jMenuItem3_actionPerformed(ActionEvent e) {jLabel1.setForeground(Color.blue);jMenuItem2.setEnabled(true);jMenuItem3.setEnabled(false);jMenuItem4.setEnabled(true);jMenuItem5.setEnabled(true); }/*************************************************///紅色 void jMenuItem4_actionPerformed(ActionEvent e) {jLabel1.setForeground(Color.red);jMenuItem2.setEnabled(true);jMenuItem3.setEnabled(true);jMenuItem4.setEnabled(false);jMenuItem5.setEnabled(true); }/*************************************************///綠色 void jMenuItem5_actionPerformed(ActionEvent e) {jLabel1.setForeground(Color.green);jMenuItem2.setEnabled(true);jMenuItem3.setEnabled(true);jMenuItem4.setEnabled(true);jMenuItem5.setEnabled(false); }/*************************************************///粗體命令項(xiàng)目 void jCheckBoxMenuItem1_actionPerformed(ActionEvent e) { int x=0,y=0; //確認(rèn)粗體項(xiàng)目是否選取 if (jCheckBoxMenuItem1.isSelected()==true) { x=1; //改變選取狀態(tài) jCheckBoxMenuItem1.setSelected(true); } else { x=0; //改變選取狀態(tài) jCheckBoxMenuItem1.setSelected(false); }//確定斜體項(xiàng)目是否選取if (jCheckBoxMenuItem2.isSelected()==true) {y=2;}//重新設(shè)置文字樣式jLabel1.setFont(new Font("Dialog",x+y,18)); }/*************************************************///斜體命令項(xiàng)目 void jCheckBoxMenuItem2_actionPerformed(ActionEvent e) { int x=0,y=0; //確認(rèn)斜項(xiàng)目是否選取 if (jCheckBoxMenuItem2.isSelected()==true) { x=2; //改變選取狀態(tài) jCheckBoxMenuItem2.setSelected(true); } else { x=0; //改變選取狀態(tài) jCheckBoxMenuItem2.setSelected(false); }//確定粗體項(xiàng)目是否選取if (jCheckBoxMenuItem1.isSelected()==true) {y=1;}//重新設(shè)置文字樣式jLabel1.setFont(new Font("Dialog",x+y,18)); }/*************************************************///關(guān)閉程序 void jMenuItem1_actionPerformed(ActionEvent e) {System.exit(0); }//為快捷菜單加入命令項(xiàng)目 void this_windowOpened(WindowEvent e) {jPopupMenu1.add(jMenuItem2); //"黑色"命令項(xiàng)目jPopupMenu1.add(jMenuItem3); //"藍(lán)色"命令項(xiàng)目jPopupMenu1.add(jMenuItem4); //"紅色"命令項(xiàng)目jPopupMenu1.add(jMenuItem5); //"綠色"命令項(xiàng)目 }//再窗體中單擊鼠標(biāo)右鍵則顯示快捷菜單 void this_mouseClicked(MouseEvent e) {if (e.isMetaDown())//單擊右鍵{//顯示快捷菜單jPopupMenu1.show(this,e.getX(),e.getY());} }}?? 快捷鍵說明
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