Java頁籤(JTabbedPane)

package Rong;

import javax.swing.*;

import java.awt.*;

import javax.swing.event.*;

public class TabbedPaneDemo extends JFrame {

  private static final long serialVersionUID = 1L;

  private String[] colorNames = { "red", "blue", "green", "black", "yellow",

    "pink", "white" };

  private Color[] colors = { Color.RED, Color.BLUE, Color.GREEN, Color.BLACK,

    Color.YELLOW, Color.PINK, Color.WHITE };

  // 頁籤在上端顯示

// private JTabbedPane tabs = new JTabbedPane(JTabbedPane.NORTH,

//    JTabbedPane.SCROLL_TAB_LAYOUT);

  // 頁籤在底部顯示

  private JTabbedPane tabs = new

  JTabbedPane(JTabbedPane.BOTTOM,JTabbedPane.SCROLL_TAB_LAYOUT);

  private JTextField txt = new JTextField(20);

  public TabbedPaneDemo(String title) {

  super(title);

  for (int i = 0; i < colors.length; i++) {

    JPanel panel = new JPanel();

    panel.setBackground(colors[i]);

    tabs.addTab(colorNames[i], panel); // 加入一個頁面

  }

  tabs.addChangeListener(new ChangeListener() {

    public void stateChanged(ChangeEvent e) {

      txt.setText("Tab selected: " + tabs.getSelectedIndex());

    }

  });

  Container contentPane = getContentPane();

  contentPane.add(BorderLayout.SOUTH, txt);

  contentPane.add(tabs);

  setSize(400,300);

  setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);

  setVisible(true);

  }

  public static void main(String[] args) {

  new TabbedPaneDemo("頁籤");

  }

}