Solved

Simple swing application

Posted on 2007-11-19
2
207 Views
Last Modified: 2008-02-01
I've been challenged to figure out what's wrong with this application. It seems to run as intended.

So far, I've came up with the following:

1) The EventDispatchThread is not respected; however, it is highly unlikely to cause an issue with this particular application.
2) The email address in the label and mailto do not match.
3) System.out.println(ex.getMessage()); >> ex.printStackTrace();


import java.awt.Desktop;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URI;
 
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
 
public class wtf {
  static Desktop desktop;
  public static void main(String[] args) {
    
    if (Desktop.isDesktopSupported()) {
      desktop = Desktop.getDesktop();
    } else {
      System.out.println("Desktop class is not supported");
      System.exit(1);
    }
    JMenuItem openItem = new JMenuItem("Open");
    JMenuItem editItem = new JMenuItem("Edit");
    JMenuItem printItem = new JMenuItem("Print");
    JMenuItem browseToItem = new JMenuItem("Go to www.java2s.com");
    JMenuItem mailToItem = new JMenuItem("Email to a@java.com");
    JMenu fileMenu = new JMenu("File");
    JMenu mailMenu = new JMenu("Email");
    JMenu browseMenu = new JMenu("Browser");
    
    openItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFileChooser chooser = new JFileChooser();
        if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
          try {
            desktop.open(chooser.getSelectedFile().getAbsoluteFile());
          } catch (Exception ex) {
            ex.printStackTrace();
          }
        }
      }
    });
    fileMenu.add(openItem);
    
    editItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFileChooser chooser = new JFileChooser();
        if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
          try {
            desktop.edit(chooser.getSelectedFile().getAbsoluteFile());
          } catch (Exception ex) {
            ex.printStackTrace();
          }
        }
      }
    });
    fileMenu.add(editItem);
    
    printItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        JFileChooser chooser = new JFileChooser();
        if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
          try {
            desktop.print(chooser.getSelectedFile().getAbsoluteFile());
          } catch (Exception ex) {
            ex.printStackTrace();
          }
        }
      }
    });
    fileMenu.add(printItem);
    
    browseToItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        try {
          URI browseURI = new URI("www.java2s.com");
          desktop.browse(browseURI);
        } catch (Exception ex) {
          System.out.println(ex.getMessage());
        }
      }
    });
    browseMenu.add(browseToItem);
 
    mailToItem.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        try {
          URI mailURI = new URI("mailto:support@java.com");
          desktop.mail(mailURI);
        } catch (Exception ex) {
          System.out.println(ex.getMessage());
        }
      }
    });
    mailMenu.add(mailToItem);
 
    JMenuBar jMenuBar = new JMenuBar();
    jMenuBar.add(fileMenu);
    jMenuBar.add(browseMenu);
    jMenuBar.add(mailMenu);
 
    JFrame frame = new JFrame();
    frame.setTitle("Desktop Helper Applications");
    frame.setSize(300, 100);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setJMenuBar(jMenuBar);
    frame.setVisible(true);
    
  }
}

Open in new window

0
Comment
Question by:modsiw
  • 2
2 Comments
 
LVL 16

Accepted Solution

by:
ellandrd earned 500 total points
ID: 20315074
has this example anything to do with this:

http://java.sun.com/developer/technicalArticles/J2SE/Desktop/javase6/desktop_api/

anyways i cant see much wrong but i would change some of the exception types like this:

try {
   URI browseURI = new URI("www.java2s.com");
   desktop.browse(browseURI);
} catch (Exception ex) {
   System.out.println(ex.getMessage());
}

should be:

try {
   URI browseURI = new URI("www.java2s.com");
   desktop.browse(browseURI);
} catch (IOException ex) {
   System.err.println(ex.getMessage());
} catch(URISyntaxException use) {
   System.err.println(use.printStackTrace());
}

ellandrd
0
 
LVL 16

Expert Comment

by:ellandrd
ID: 20459650
what a grade B?  what did i do wrong?

ellandrd
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
split string containing \r\n in Java 46 44
egit plugin on eclipse 8 64
jsp login check 12 32
What's wrong with this code? 4 23
By the end of 1980s, object oriented programming using languages like C++, Simula69 and ObjectPascal gained momentum. It looked like programmers finally found the perfect language. C++ successfully combined the object oriented principles of Simula w…
This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed. ------------------------- Start The idea here is to target your cell phones with the correct…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Viewers will learn about if statements in Java and their use The if statement: The condition required to create an if statement: Variations of if statements: An example using if statements:

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question