82 lines
3.2 KiB
Java
82 lines
3.2 KiB
Java
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Using JEditorPane as a browser
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import java.io.*;
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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import javax.swing.filechooser.*;
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public class FileChooserDemo extends JFrame {
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static private final String newline = "\n";
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public FileChooserDemo() {
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super("FileChooserDemo");
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//Create the log first, because the action listeners
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//need to refer to it.
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final JTextArea log = new JTextArea(5,20);
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log.setMargin(new Insets(5,5,5,5));
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log.setEditable(false);
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JScrollPane logScrollPane = new JScrollPane(log);
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//Create a file chooser
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final JFileChooser fc = new JFileChooser();
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//Create the open button
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ImageIcon openIcon = new ImageIcon("images/open.gif");
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JButton openButton = new JButton("Open a File...", openIcon);
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openButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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int returnVal = fc.showOpenDialog(FileChooserDemo.this);
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if (returnVal == JFileChooser.APPROVE_OPTION) {
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File file = fc.getSelectedFile();
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//this is where a real application would open the file.
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log.append("Opening: " + file.getName() + "." + newline);
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} else {
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log.append("Open command cancelled by user." + newline);
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}
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}
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});
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//Create the save button
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ImageIcon saveIcon = new ImageIcon("save.gif");
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JButton saveButton = new JButton("Save a File...", saveIcon);
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saveButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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int returnVal = fc.showSaveDialog(FileChooserDemo.this);
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if (returnVal == JFileChooser.APPROVE_OPTION) {
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File file = fc.getSelectedFile();
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//this is where a real application would save the file.
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log.append("Saving: " + file.getName() + "." + newline);
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} else {
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log.append("Save cancelled by user." + newline);
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}
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}
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});
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JPanel buttonPanel = new JPanel();
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buttonPanel.add(openButton);
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buttonPanel.add(saveButton);
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openButton.setNextFocusableComponent(saveButton);
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saveButton.setNextFocusableComponent(openButton);
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Container contentPane = getContentPane();
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contentPane.add(buttonPanel, BorderLayout.NORTH);
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contentPane.add(logScrollPane, BorderLayout.CENTER);
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}
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public static void main(String[] args) {
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JFrame frame = new FileChooserDemo();
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent e) {
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System.exit(0);
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}
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});
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frame.pack();
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frame.setVisible(true);
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}
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}
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