001:import java.awt.* ;
002:import java.awt.event.* ;
003:import javax.swing.* ;
004:
005:public class MyAction2 {
006:    
007:    static int      count=0;                 // ボタンの押された回数
008:    static JLabel   countlabel;              // 回数を表示するためのラベル
009:
010:    static void countAndDisplay() {
011:        count++;                                            // 
012:        countlabel.setText( "クリック " + count + "回" );   // 
013:    }
014:
015:    public static void main(String args[]) {
016:        JFrame frame = new JFrame("Event Test");
017:        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
018:        Container pane = frame.getContentPane();
019:        pane.setLayout( new BorderLayout() );
020:
021:        JButton countbutton1 = new JButton("ボタン１");         // 正統派
022:        countbutton1.addActionListener(new ActionListener() {
023:            public void actionPerformed(ActionEvent e) { 
024:                countAndDisplay();
025:            }
026:        });
027:
028:        JButton countbutton2 = new JButton("ボタン２");         // actionperformed
029:        countbutton2.addActionListener(new ActionListener() {
030:            public void actionperformed(ActionEvent e) { 
031:                countAndDisplay();
032:            }
033:        });
034:
035:        JButton countbutton3 = new JButton("ボタン３");         // MouseEvent
036:        countbutton3.addActionListener(new ActionListener() {
037:            public void actionPerformed(MouseEvent e) { 
038:                countAndDisplay();
039:            }
040:        });
041:
042:        JButton countbutton4 = new JButton("ボタン４");         // ３つとも登録
043:        countbutton4.addActionListener(new ActionListener() {
044:            public void actionperformed(ActionEvent e) { 
045:                countAndDisplay();
046:            }
047:            public void actionPerformed(MouseEvent e) { 
048:                countAndDisplay();
049:            }
050:            public void actionPerformed(ActionEvent e) { 
051:                countAndDisplay();
052:            }
053:        });
054:
055:        countlabel = new JLabel( "クリック " + count + "回" );
056:        countlabel.setHorizontalAlignment( SwingConstants.CENTER );
057:        pane.add( countlabel,  BorderLayout.NORTH );
058:
059:        JPanel center = new JPanel( new GridLayout(4,1) );
060:        center.add( countbutton1 );
061:        center.add( countbutton2 );
062:        center.add( countbutton3 );
063:        center.add( countbutton4 );
064:        pane.add( center, BorderLayout.CENTER );
065:
066:        frame.pack();
067:        frame.setVisible(true);
068:    }
069:}