FileChooserTest.java Source code

Introduction

Here is the source code for FileChooserTest.java

Source

// : c14:FileChooserTest.java
// Demonstration of File dialog boxes.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class FileChooserTest extends JFrame {
    private JTextField filename = new JTextField(), dir = new JTextField();

    private JButton open = new JButton("Open"), save = new JButton("Save");

    public FileChooserTest() {
        JPanel p = new JPanel();
        open.addActionListener(new OpenL());
        p.add(open);
        save.addActionListener(new SaveL());
        p.add(save);
        Container cp = getContentPane();
        cp.add(p, BorderLayout.SOUTH);
        dir.setEditable(false);
        filename.setEditable(false);
        p = new JPanel();
        p.setLayout(new GridLayout(2, 1));
        p.add(filename);
        p.add(dir);
        cp.add(p, BorderLayout.NORTH);
    }

    class OpenL implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            JFileChooser c = new JFileChooser();
            // Demonstrate "Open" dialog:
            int rVal = c.showOpenDialog(FileChooserTest.this);
            if (rVal == JFileChooser.APPROVE_OPTION) {
                filename.setText(c.getSelectedFile().getName());
                dir.setText(c.getCurrentDirectory().toString());
            }
            if (rVal == JFileChooser.CANCEL_OPTION) {
                filename.setText("You pressed cancel");
                dir.setText("");
            }
        }
    }

    class SaveL implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            JFileChooser c = new JFileChooser();
            // Demonstrate "Save" dialog:
            int rVal = c.showSaveDialog(FileChooserTest.this);
            if (rVal == JFileChooser.APPROVE_OPTION) {
                filename.setText(c.getSelectedFile().getName());
                dir.setText(c.getCurrentDirectory().toString());
            }
            if (rVal == JFileChooser.CANCEL_OPTION) {
                filename.setText("You pressed cancel");
                dir.setText("");
            }
        }
    }

    public static void main(String[] args) {
        run(new FileChooserTest(), 250, 110);
    }

    public static void run(JFrame frame, int width, int height) {
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(width, height);
        frame.setVisible(true);
    }
} ///:~