test.java

swing 教程,与大家分享一下,哈哈,希望大家多多指教

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

public class Test extends JApplet {
	JDesktopPane desktopPane = new JDesktopPane();

	JInternalFrame jif = new JInternalFrame(
				  	"Internal Frame ", // title
				  	true,  // resizable
				  	true,  // closable
				  	true,  // maximizable
				  	true); // iconifiable

	JScrollBar scrollbar = new JScrollBar();
	JSlider slider = new JSlider();
	JToolBar toolbar = new JToolBar();
	JTree tree = new JTree();

	public void init() {
		Container contentPane = getContentPane();


		jif.setPreferredSize(new Dimension(550, 450));
		jif.getContentPane().setLayout(new FlowLayout());
		jif.getContentPane().add(new ComponentPanel());

		desktopPane.setLayout(new FlowLayout());
		desktopPane.add(jif);

		contentPane.add(new ControlPanel(), BorderLayout.NORTH);
		contentPane.add(desktopPane, BorderLayout.CENTER);

	}
	class ComponentPanel extends JPanel {
		public ComponentPanel() {
			JPanel panel = new JPanel();

			setLayout(new BorderLayout());
			add(toolbar, BorderLayout.NORTH);
			add(panel, BorderLayout.CENTER);

			panel.add(scrollbar);
			panel.add(slider);
			panel.add(new JScrollPane(tree));

			tree.setPreferredSize(new Dimension(200,100));

			toolbar.add(new JButton("button"));
		}
	}
	class ControlPanel extends JPanel {
		JCheckBox rollover = new JCheckBox(
								"JToolBar.rollover");
		JCheckBox palette = new JCheckBox(
								"JInternalFrame.palette");
		JCheckBox filled = new JCheckBox(
								"JSlider.isFilled");
		JCheckBox freeStanding = new JCheckBox(
								" JScrollBar.freeStanding");

		JRadioButton none = new JRadioButton("none");
		JRadioButton horizontal = new JRadioButton("horizontal");
		JRadioButton angled = new JRadioButton("angled");

		public ControlPanel() {
			ActionListener checkBoxListener = 
										new CheckBoxListener();
			ActionListener radioButtonListener = 
										new RadioButtonListener();

			palette.addActionListener(checkBoxListener);
			filled.addActionListener(checkBoxListener);
			rollover.addActionListener(checkBoxListener);
			freeStanding.addActionListener(checkBoxListener);

			none.addActionListener(radioButtonListener);
			horizontal.addActionListener(radioButtonListener);
			angled.addActionListener(radioButtonListener);

			ButtonGroup group = new ButtonGroup();
			group.add(none);
			group.add(horizontal);
			group.add(filled);

			none.setSelected(true);
			freeStanding.setSelected(true);
			
			add(palette);
			add(filled);
			add(rollover);
			add(freeStanding);
			add(Box.createHorizontalStrut(10));
			add(new JLabel("Tree: "));
			add(none);
			add(horizontal);
			add(angled);
		}
		class RadioButtonListener implements ActionListener {
			public void actionPerformed(ActionEvent e) {
				JRadioButton rb = (JRadioButton)e.getSource();

				if(rb == none) {
					tree.putClientProperty(
							"JTree.lineStyle", "None");
				}
				if(rb == horizontal) {
					tree.putClientProperty(
							"JTree.lineStyle", "Horizontal");
				}
				if(rb == angled) {
					tree.putClientProperty(
							"JTree.lineStyle", "Angled");
				}
				tree.repaint();
			}
		}
		class CheckBoxListener implements ActionListener {
			public void actionPerformed(ActionEvent e) {
				JCheckBox cb = (JCheckBox)e.getSource();

				if(cb == palette) {
					palette.putClientProperty(
							"JInternalFrame.isPalette", 
							new Boolean(cb.isSelected()));

					jif.revalidate();
				}
				else if(cb == filled) {
					slider.putClientProperty(
							"JSlider.isFilled", 
							new Boolean(cb.isSelected()));

					slider.repaint();
				}
				else if(cb == rollover) {
					toolbar.putClientProperty(
							"JToolBar.isRollover", 
							new Boolean(cb.isSelected()));

					toolbar.repaint();
				}
				else if(cb == freeStanding) {
					scrollbar.putClientProperty(
							"JScrollBar.isFreeStanding", 
							new Boolean(cb.isSelected()));

					scrollbar.repaint();
				}
			}
		}
	}
}