Java AWT | Desktop Class
Last Updated :
23 Oct, 2019
The Desktop class is a part of Java AWT package. This class is used to launch associated applications registered on the native desktop to handle a URI or a file.
Important Points About Desktop Class :
- It can open a default web browser showing a specific URI
- It can launch default mail client with optional mailto URI
- It can launch a registered application to open, edit or print a specific file.
Different Methods in Desktop Class
Method |
Explanation |
browse(URI u) |
Launches the default browser to display a specific URI. |
edit(File f) |
Launches the associated editor application and opens a file. |
getDesktop() |
Returns the Desktop instance of the current browser context. |
isDesktopSupported() |
returns whether this class is supported on the current platform. |
isSupported(Desktop.Action action) |
returns whether an action is supported on the current platform. |
mail() |
Launches the mail composing window of the user default mail client. |
mail(URI mailtoURI) |
Launches the mail composing window of the user default mail client, filling the message fields specified by a mailto: URI. |
open(File f) |
Launches the associated application to open the file |
print(File f) |
Prints a file with the native desktop printing facility, using the associated application’s print command.
|
Below programs illustrate the Desktop class in Java AWT:
-
Program to Launch the browser and open a specific URI
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.net.*;
class desk extends JFrame implements ActionListener {
static JFrame f;
public static void main(String args[])
{
desk d = new desk();
f = new JFrame( "desktop" );
JPanel p = new JPanel();
JButton b = new JButton( "launch" );
b.addActionListener(d);
p.add(b);
f.add(p);
f.show();
f.setSize( 200 , 200 );
}
public void actionPerformed(ActionEvent e)
{
try {
URI u = new URI( "www.geeksforgeeks.org" );
Desktop d = Desktop.getDesktop();
d.browse(u);
}
catch (Exception evt) {
}
}
}
|
Output :
- Program to Launch the mail to a specific URI
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.net.*;
class desk extends JFrame implements ActionListener {
static JFrame f;
public static void main(String args[])
{
desk d = new desk();
f = new JFrame( "desktop" );
JPanel p = new JPanel();
JButton b = new JButton( "launch" );
b.addActionListener(d);
p.add(b);
f.add(p);
f.show();
f.setSize( 200 , 200 );
}
public void actionPerformed(ActionEvent e)
{
try {
URI u = new URI( "mailto:review-team@geeksforgeeks.org" );
Desktop d = Desktop.getDesktop();
d.mail(u);
}
catch (Exception evt) {
JOptionPane.showMessageDialog( this , evt.getMessage());
}
}
}
|
Output:
- Program to open a file
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
class desk extends JFrame implements ActionListener {
static JFrame f;
public static void main(String args[])
{
desk d = new desk();
f = new JFrame( "desktop" );
JPanel p = new JPanel();
JButton b = new JButton( "launch" );
b.addActionListener(d);
p.add(b);
f.add(p);
f.show();
f.setSize( 200 , 200 );
}
public void actionPerformed(ActionEvent e)
{
try {
File u = new File( "f:\\image.png" );
Desktop d = Desktop.getDesktop();
d.open(u);
}
catch (Exception evt) {
JOptionPane.showMessageDialog( this , evt.getMessage());
}
}
}
|
Output :
- Program to open a file for editing
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
class desk extends JFrame implements ActionListener {
static JFrame f;
public static void main(String args[])
{
desk d = new desk();
f = new JFrame( "desktop" );
JPanel p = new JPanel();
JButton b = new JButton( "launch" );
b.addActionListener(d);
p.add(b);
f.add(p);
f.show();
f.setSize( 200 , 200 );
}
public void actionPerformed(ActionEvent e)
{
try {
File u = new File( "f:\\sample.txt" );
Desktop d = Desktop.getDesktop();
d.edit(u);
}
catch (Exception evt) {
JOptionPane.showMessageDialog( this , evt.getMessage());
}
}
}
|
Output :
- Program to open a file for printing
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
class desk extends JFrame implements ActionListener {
static JFrame f;
public static void main(String args[])
{
desk d = new desk();
f = new JFrame( "desktop" );
JPanel p = new JPanel();
JButton b = new JButton( "launch" );
b.addActionListener(d);
p.add(b);
f.add(p);
f.show();
f.setSize( 200 , 200 );
}
public void actionPerformed(ActionEvent e)
{
try {
File u = new File( "f:\\sample.txt" );
Desktop d = Desktop.getDesktop();
d.print(u);
}
catch (Exception evt) {
JOptionPane.showMessageDialog( this , evt.getMessage());
}
}
}
|
Output :
Reference: https://docs.oracle.com/javase/7/docs/api/java/awt/Desktop.html
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