1. Introduction to JSTL using NetBeans
(Java Tutorials/Tutorials)

...contains nothing. Please be careful when dealing with null values as it may cause you the famous NullPointerException. <c:if test="${param.mark >= 0 and param.mark &l...

2. Sixlegs Java PNG Library
(Java Libraries/Image Editing/Processing Library)

...png Features Java 1.1 and 1.2-compatible PNG decoders. Licensed under the GPL with library exception. Full conformance with the latest PNG specification. Support for all ...

3. Latest Additions - 17.07.06 (389 new tips)
(Newsflashes/NewsFlashes)

...o use Wrapper classes Difference between Abstract classes and Interfaces Creating Application Specific Exceptions How to use For Each loop How to pass unspecified number of arguments to a ...

4. How to download and view a PNG file
(Java ME Tips/MIDP)

...urrent(fmViewPng);       }       catch (Exception e)       {      &...

5. Example Midlet to demonstrate Commands - Items and Event Processing
(Java ME Tips/MIDP)

... */ //jad file (please verify the jar size) /* MIDlet-Name: ThrowException MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL:&nbsp...

6. How to display an animated timer in MIDP
(Java ME Tips/MIDP)

...bsp;  translate_y = viewport_y;       } catch (Exception e) {         System.err.print...

7. A sample of graphics - commands and event handling
(Java ME Tips/MIDP)

...tem);             } catch (java.io.IOException ex) {           &nb...

8. Use of Finally Clause
(Java SE Tips/java.lang)

When exception is thrown, execution in a method takes a rather abrupt, nonlinear path that alters the normal flow through the method. Depending upon how the method is coded, the method may return prem

9. How to use Struts Framework
(Other API Tips/Struts)

...4;com.rohit.SimpleActionForm"/> </form-beans> <!-- ========= Global Exception Definitions ======================== --> <global-exception...

10. Understanding JMX Technology
(Java EE Tips/Enterprise Java Beans)

...r.registerMBean(tBean, tBeanName);          } catch(Exception e) {           &nbs...

11. What is New in JAXB 2.0
(Java EE Tips/Java Architecture for XML Binding)

...ural inconsistency that it is unable to recover from, it aborts the unmarshal process and throws an UnmarshalException. For example, it can rigidly give up unmarshalling if it encounters an unexpected...

12. Document Handling in Web Services Applications
(Java EE Tips/Enterprise Java Beans)

...e is xsd:any. Similar elements are defined and used for returning authorization status. CreditCardServiceException.xsd defines the structure of an XML document for returning an error message, that...

13. How to get information about user using Servlet
(Java EE Tips/Java Servlet)

...ponse res)             throws ServletException,IOException{            &nb...

14. Using validator in SAX interface
(Java SE Tips/javax.xml.validation)

... javax.xml.validation.Validator; import org.xml.sax.InputSource; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; /**  * A&nbsp...

15. Spring in Action
(Java Book Reviews/Books)

...s to Spring controllers. This chapter also tells you how you can validate form submissions as well as handle exceptions while working with the web applications. Talking about the templating languages ...

16. Thinking in Java - Third Edition
(Java Book Reviews/Books)

...Inner Classes as well as Error Handling techniques had also been mentioned. Much had been said regarding the exception handling, generation of own exceptions as well as cleanup functionality using fin...

17. Java RMI
(Java Book Reviews/Books)

...gether in objects? How to account for a partial failure. How to identify a Reasonable Set of Distributed Exceptions. Chapter 8: Implementing the Bank Server The Structure of a Server. ...

18. Computing Concepts with Java Essentials
(Java Book Reviews/Books)

...e second section, chapters nine through sixteen, covers more advanced topics, including inheritance, arrays, exceptions, streams, and GUI programming. The last section, chapters seventeen through nine...

19. Java Cookbook - Second Edition
(Java Book Reviews/Books)

...get what we expect from an advanced book-“How can I implement this in Java?” and this is the book that is an exception. It is definitely many steps ahead of any other Java book. The author Ian F. Darw...

20. Ivor Horton's Beginning Java 2, JDK 5 Edition
(Java Book Reviews/Books)

...cticality. Not every aspect of Java programming could be covered in a single volume and this book is no exception to that. There are topics like RMI, JavaBeans which should have been added to thi...

21. Head First Java - Second Edition
(Java Book Reviews/Books)

...en chapters, Java and Object oriented fundamentals are narrated and then it is followed by a chapter each on Exception Handling, Introduction to GUI and Event Handling, Swing, Serialization and IO, Ne...

22. Introduction to the Java Transaction API
(Java EE Tips/Enterprise Java Beans)

...ransaction. If the client is not associated with a transaction, the container throws the TransactionRequiredException. Use the Mandatory attribute if the enterprise bean's method must use the trans...

23. Using AJAX with Java Technology
(Java EE Tips/Enterprise Java Beans)

...bsp;HttpServletResponse response)          throws IOException, ServletException {         ....

24. Using AJAX With Non-HTML Markup in JSF
(Java EE Tips/JavaServer Faces)

...nbsp;UIComponent component)           throws IOException {    ...        UIComp...

25. How to handle long-running tasks in a Swing application
(Java SE Tips/javax.swing)

...;             } catch (InterruptedException ex) {}           &n...

26. How to place an image without knowing its size
(Java ME Tips/MIDP)

...;               } catch (IOException ex) {           &nb...

27. Latest Additions - 02.02.06 (53 new tips)
(Newsflashes/NewsFlashes)

...TL - a page that parses the user's number JSTL - handling parameters collection JSTL - how to catch an exception inside the page JSTL - accessing database source JSTL - using database for ...

28. How to create Events/Task/Reminder in mobile phone
(Java ME Tips/MIDP)

...;               } catch (IOException e) {           &nbs...

29. How do I get the element under the caret?
(Other API Tips/NetBeans)

Null checks, class match checks and exception handling omitted: JTextComponent editor = Registry.getMostActiveComponent(); BaseDocument baseDoc&

30. Handling errors
(Java EE Tips/JavaServer Pages)

Many of runtime errors can be caught and handled inside JSP using Java's built-in exception handling.In addition, JSP provides some great resources to help the JSP author manage error conditions.

31. Secure Communication with JSSE
(Java SE Tips/javax.net.ssl)

...Stream;    import java.io.InputStreamReader;    import java.io.IOException;    import java.io.OutputStream;    import...

32. Latest Additions - 05.12.05 (180 new tips)
(Newsflashes/NewsFlashes)

...upported in JDOM 1.9) Other API Tips / JFreeChart I'm getting classpath errors (NoClassDefFoundException etc.), can you help me? I can't find the source code for classes in the org.jf...

33. Handling element attributes with JDOM
(Other API Tips/JDOM)

...sp;               } catch (Exception ex) {           &nb...

34. Displaying images on mobile device
(Java ME Tips/MIDP)

...p;  Image im = Image.createImage("/image.png"); } catch (java.io.IOException e) {    System.err.println("Unable to locat...

35. How to use Symlink task
(Other API Tips/Ant)

...this task may have difficulty operating with a relative path in ANT_HOME. The typical symptom is an IOException where ant can't find /some/working/directory$/bin/antRun or something similar....

36. How to work with Canvas in mobile application
(Java ME Tips/MIDP)

...p; Thread.sleep(1000);             }catch(Exception e){}            &nb...

37. A Midlet application for GIF Animation
(Java ME Tips/MIDP)

...sp;                 }catch(Exception e){}             ...

38. An example of use of RMS for storing persistent data
(Java ME Tips/MIDP)

...nbsp;   rs.closeRecordStore();         } catch(Exception e) {           &nbs...

39. Handling namespaces during parsing
(Java SE Tips/org.xml.sax)

...util.HashMap; import java.util.Iterator; import java.util.Map; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; /**  * This&n...

40. Handling SAX errors during parsing
(Java SE Tips/org.xml.sax)

...sp;javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.SAXParseException; import org.xml.sax.helpers.D...

41. Extracting attribute values from XML elements
(Java SE Tips/org.xml.sax)

...;javax.xml.parsers.SAXParser; import org.xml.sax.helpers.DefaultHandler; import org.xml.sax.SAXException; import org.xml.sax.Attributes; import javax.xml.parsers.SAXParserF...

42. Parsing XML with a simple SAX document handler
(Java SE Tips/org.xml.sax)

...sp;javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; /**  * Here&n...

43. Spring
(Java Libraries/J2EE Framework)

...guring applications. OO design is more important than any implementation technology, such as J2EE. Checked exceptions are overused in Java. A framework shouldn't force you to catch exceptions you're...

44. Spring Framework
(Java Libraries/Web Framework)

...s transaction support is not tied to J2EE environments. A JDBC abstraction layer that offers a meaningful exception hierarchy (no more pulling vendor codes out of SQLException), simplifies error ha...

45. How to work with ServletContext initilization parameters
(Java EE Tips/Java Servlet)

... ;      public void init(ServletConfig config)throws ServletException {     this.config = config;   &n...

46. How to handle status code errors in web.xml
(Java EE Tips/Java Servlet)

...x.servlet.*; import javax.servlet.http.*; import java.io.*; public class ServletExceptionHandling extends HttpServlet {   public void&nb...

47. Encrypting/Decrypting text messages with Bouncy Castle Crypto API
(Java ME Tips/MIDP)

...rivate byte[] callCipher( byte[] data )     throws CryptoException {         int   &nb...