public class OpenBrowserAction
implements ActionListener{
public void actionPerformed(ActionEvent
ae){
try {
URI uri = new URI(“http://
www.javajazzup.com”);
Desktop desktop = null;
//Test whether
Desktop class is supported on the current
platform.
if (Desktop.isDesktopSupported()) {
// If it’s
supported, retrieve an instance.
desktop = Desktop.getDesktop();
}
if (desktop != null)
// Launch
the default browser to display a URI.
desktop.browse(uri);
}
catch (IOException e) {
e.printStackTrace();
}
catch (URISyntaxException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) throws
Exception {
LaunchBrowser screen = new
LaunchBrowser();
}
}

This program shows a frame, which holds a command button labeled by “Open Browser”.

Clicking the button opens “http:// www.javajazzup.com” in the default browser.



4. Reading XML file:

This program reads the XML file using DOM parser, which loads the XML file into the memory and makes its object model that can be traversed to get its elements. The class DocumentBuilderFactory is responsible for obtaining new DOM parsers that produces DOM object trees from XML documents. The java program ReadMyXMLFile.java parses EmpInfo.xml file and prints its elements to the console in the desired manner.

EmpInfo.xml

<?xml version = “1.0” ?>
<Employee-Info>
<Employee>
<Emp_Id> E001 </Emp_Id>
<Emp_Name> Emp1 </Emp_Name>
<Emp_E-mail> emp1@javajazzup.com </
Emp_E-mail>
</Employee>
<Employee>
<Emp_Id> E002 </Emp_Id>
<Emp_Name> Emp2 </Emp_Name>
<Emp_E-mail> emp2@javajazzup.com </
Emp_E-mail>
</Employee>
</Employee-Info>