tabbedpanedemo.java

来自「初级学习资料必读本」· Java 代码 · 共 54 行

import javax.swing.JTabbedPane;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JFrame;

import java.awt.*;
import java.awt.event.*;

public class TabbedPaneDemo extends JPanel {
    public TabbedPaneDemo() {
        ImageIcon icon = new ImageIcon("images/middle.gif");
        JTabbedPane tabbedPane = new JTabbedPane();

        Component panel1 = makeTextPanel("Blah");
        tabbedPane.addTab("One", icon, panel1, "Does nothing");
        tabbedPane.setSelectedIndex(0);

        Component panel2 = makeTextPanel("Blah blah");
        tabbedPane.addTab("Two", icon, panel2, "Does twice as much nothing");

        Component panel3 = makeTextPanel("Blah blah blah");
        tabbedPane.addTab("Three", icon, panel3, "Still does nothing");

        Component panel4 = makeTextPanel("Blah blah blah blah");
        tabbedPane.addTab("Four", icon, panel4, "Does nothing at all");

        //Add the tabbed pane to this panel.
        setLayout(new GridLayout(1, 1)); 
        add(tabbedPane);
    }

    protected Component makeTextPanel(String text) {
        JPanel panel = new JPanel(false);
        JLabel filler = new JLabel(text);
        filler.setHorizontalAlignment(JLabel.CENTER);
        panel.setLayout(new GridLayout(1, 1));
        panel.add(filler);
        return panel;
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("TabbedPaneDemo");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}
        });

        frame.getContentPane().add(new TabbedPaneDemo(), 
                                   BorderLayout.CENTER);
        frame.setSize(400, 125);
        frame.setVisible(true);
    }
}