telephone.java

java课件

import javax.swing.*;
import java.awt.*;

class Telephone extends JFrame {
    public static void main(String[] args) {
        new Telephone();
    }
    
    public Telephone() {
        super("Telephone GUI Demo");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        initSpeakerPanel();
        initKeyPanel();
        initMicphonePanel();
        
        Container pane = getContentPane();
        pane.setLayout(new BorderLayout());
        pane.add(speakerPanel,BorderLayout.NORTH);
        pane.add(keyPanel,BorderLayout.CENTER);
        pane.add(micphonePanel,BorderLayout.SOUTH);
        
        pack();
        setVisible(true);
    }
    
    private void initSpeakerPanel() {
        speakerPanel = new JPanel();
        speakerPanel.setLayout(new BorderLayout());
        JLabel label = new JLabel("Speaker: ");
        label.setFont(font);
        speakerPanel.add(label,BorderLayout.NORTH);
        speakerArea = new JTextArea(5,15);
        speakerPanel.add(speakerArea,BorderLayout.CENTER);
    }
    
    private void initKeyPanel() {
        String keyLabels = "123456789*0#";
        keyPanel = new JPanel();
        keyPanel.setLayout(new GridLayout(4,3));
        for(int i=0;i<keyLabels.length();i++) {
            String label = keyLabels.substring(i,i+1);
            JButton b = new JButton(label);
            b.setFont(font);
            //b.addActionListener(...);
            keyPanel.add(b);
        }
    }
    
    private void initMicphonePanel() {
        micphonePanel = new JPanel();
        micphonePanel.setLayout(new BorderLayout());
        JLabel label = new JLabel("Micphone: ");
        label.setFont(font);
        micphonePanel.add(label,BorderLayout.NORTH);
        micphoneArea = new JTextArea(5,15);
        micphonePanel.add(micphoneArea,BorderLayout.CENTER);
        
        buttonPanel = new JPanel();
        buttonPanel.setLayout(new FlowLayout());
        speechButton = new JButton("Speech");
        speechButton.setFont(font);
        //speechButton.addActionListener(...);
        hangupButton = new JButton("Hangup");
        hangupButton.setFont(font);
        //hangupButton.addActionListener(...);
        buttonPanel.add(speechButton);
        buttonPanel.add(hangupButton);
        
        micphonePanel.add(buttonPanel,BorderLayout.SOUTH);
    }
    
    private JPanel speakerPanel;
    private JTextArea speakerArea;
    
    private JPanel keyPanel;
    private JPanel micphonePanel;
    private JTextArea micphoneArea;
    
    private JPanel buttonPanel;
    private JButton speechButton;
    private JButton hangupButton;
    
    private Font font = new Font("Dialog",Font.BOLD,18);
}