joptionpanetest.java

java编程开发技巧与实例的编译测试通过的所有例程

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

public class JOptionPaneTest extends JFrame implements ActionListener
{
	private int MESSAGE_TYPE[]	=
	{
			JOptionPane.ERROR_MESSAGE,
			JOptionPane.INFORMATION_MESSAGE,
			JOptionPane.WARNING_MESSAGE,
			JOptionPane.QUESTION_MESSAGE,
			JOptionPane.PLAIN_MESSAGE
	};
	private int OPTION_TYPE[]	=
	{
			JOptionPane.DEFAULT_OPTION,
			JOptionPane.YES_NO_OPTION,
			JOptionPane.YES_NO_CANCEL_OPTION,
			JOptionPane.OK_CANCEL_OPTION
	};
	private String MESSAGE_STRING[]	=
	{
			"ERROR_MESSAGE",
			"INFORMATION_MESSAGE",
			"WARNING_MESSAGE",
			"QUESION_MESSAGE",
			"PLAIN_MESSAGE"
	};
	private String OPTION_STRING[]	=
	{
			"DEFAULT_OPTION",
			"YES_NO_OPTION",
			"YES_NO_CANCEL_OPTION",
			"OK_CANCEL_OPTION"
	};
	private JButton		message		=	new JButton("Message");
	private JButton		input		=	new JButton("Input");
	private JButton		confirm		=	new JButton("Confirm");
	private JComboBox	messageType	=	new JComboBox(MESSAGE_STRING);
	private JComboBox	optionType	=	new JComboBox(OPTION_STRING);
	
	public JOptionPaneTest()
	{
		super("Standard Dialog Test");
		JPanelBox		buttons	=	new JPanelBox(new FlowLayout(), "Types");
		buttons.add(message);
		message.addActionListener(this);
		buttons.add(input);
		input.addActionListener(this);
		buttons.add(confirm);
		confirm.addActionListener(this);
		JPanelBox options	=	new JPanelBox(new FlowLayout(), "Options");
		options.add(new JLabel("Message Types: "));
		options.add(messageType);
		options.add(new JLabel("Option Types"));
		options.add(optionType);
		getContentPane().add("North", buttons);
		getContentPane().add("South", options);
		addWindowListener(new WindowCloser());
		
		validate();
		pack();
		setLocationRelativeTo(this);
		setVisible(true);
	}
	public void actionPerformed(ActionEvent ae)
	{
		if (ae.getSource() == message)
			JOptionPane.showMessageDialog(this, "Test Message","Message",
					MESSAGE_TYPE[messageType.getSelectedIndex()]);
		else if (ae.getSource() == input)
			JOptionPane.showMessageDialog(this, "Test Input","Input",
					MESSAGE_TYPE[messageType.getSelectedIndex()]);
		else if (ae.getSource() == confirm)
			JOptionPane.showConfirmDialog(this, "Test Confirm","Confirm",
					OPTION_TYPE[optionType.getSelectedIndex()],
					MESSAGE_TYPE[messageType.getSelectedIndex()]);
	}
	public static void styleCtrl(String style)
	{
		try
		{
			String lf_wind	=	"com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
			String lf_unix	=	"com.sun.java.swing.plaf.motif.MotifLookAndFeel";
			String lf_java	=	"javax.swing.plaf.metal.MetalLookAndFeel";
			if (style.equals("java"))
				UIManager.setLookAndFeel(lf_java);
			else if (style.equals("unix"))
				UIManager.setLookAndFeel(lf_unix);
			else if (style.equals("windows"))
				UIManager.setLookAndFeel(lf_wind);
		}
		catch	(Exception e)
		{
			System.err.println("Exception: " + e);
		}
	}
	private class WindowCloser extends WindowAdapter
	{
		public void windowClosing(WindowEvent we)
		{	System.exit(0);	}
	}
	public static void main(String args[])
	{
		styleCtrl("java");
		JOptionPaneTest jopt	=	new JOptionPaneTest();
	}
}