JAVA簡單的SWING及AWT

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慢慢找感覺~~

package SwingGui.sky.com;import javax.swing.*;import java.awt.*;import java.awt.event.*;public class SimpleGui implements ActionListener {    JFrame frame;    JLabel label;    int x =70;    int y = 70;    public static void main(String [] args) {        SimpleGui gui = new SimpleGui();        gui.go();                            }    public void go() {        frame = new JFrame();        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                JButton labelButton = new JButton("Change Label");        labelButton.addActionListener(new LabelListener());                JButton colorButton = new JButton("Change Circle");        colorButton.addActionListener(new ColorListener());                label = new JLabel("I‘am a label");        MyDrawPanel drawPanel = new MyDrawPanel();                frame.getContentPane().add(drawPanel);                frame.getContentPane().add(BorderLayout.SOUTH, colorButton);        frame.getContentPane().add(BorderLayout.CENTER, drawPanel);        frame.getContentPane().add(BorderLayout.EAST, labelButton);        frame.getContentPane().add(BorderLayout.WEST, label);        frame.setSize(800, 500);        frame.setVisible(true);                for (int i = 0; i < 130; i++) {            x++;            y++;            drawPanel.repaint();                        try {                Thread.sleep(20);            } catch (Exception ex) {}        }    }    @Override     public void actionPerformed(ActionEvent event) {        JButton button=(JButton) event.getSource();         button.setText("I‘v been clicked!..");        button.setBackground(Color.blue);    }        class LabelListener implements ActionListener {        public void actionPerformed(ActionEvent event) {            label.setText("Ouch");        }    }        class ColorListener implements ActionListener {        public void actionPerformed(ActionEvent event) {            frame.repaint();        }    }    class MyDrawPanel extends JPanel {        public void paintComponent(Graphics g) {            g.setColor(Color.white);            g.fillRect(0, 0, this.getWidth(), this.getHeight());            g.setColor(Color.green);            g.fillOval(x, y, 40, 40);        }    }}

JAVA簡單的SWING及AWT