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  1. HavaTheJut

    Destructors

    The finally block is good for ensuring that something happens in your program, as the contained code always executes. However, if you open a connection in the try-catch-finally block and do not explicity close it (i.e. if you want to pass the connection to another method) the connection will...
  2. HavaTheJut

    Destructors

    Java does not have destructors. However, you can try two things. 1. Have thread that has references to all of your connections and calls Connection.isClosed() at regular intervals. If it detects that a connection is closed, it can output a message, etc. 2. Extend the Connection class. In...
  3. HavaTheJut

    task switching with java

    Im not saying that its not possible, because I'm sure that you can use native classes to find a way to do this. However, doing so would go against the principles of a machine-independant langauge. Other languages are able to interface with the native environment much more seamlessly, but if...
  4. HavaTheJut

    Hi There, I've got some problems

    Where's the unpost button when you need it? :-) Anyway, this error seems similar to the one you got. (I can't tell for sure, since you used borland and this is from javac) java.lang.NoSuchMethodError: Blop.<init>(Ljava/lang/String;)at ConstTest.main(ConstTest.java:5) In order to get this...
  5. HavaTheJut

    Sybase Connection stopped working - System 11 on NT

    Fixed it. It was an incorrect DSN IP address (although i have not a clue how it got changed). [morning] HavaTheJut
  6. HavaTheJut

    Hi There, I've got some problems

    Sorry about that previous post... I wan't thinking. [morning] HavaTheJut
  7. HavaTheJut

    Hi There, I've got some problems

    Can't pass in null for a String. You can use &quot;&quot; and check for length() > 0. [morning] HavaTheJut
  8. HavaTheJut

    Sybase Connection stopped working - System 11 on NT

    As of a week ago, a database connection to a sybase server using the Sybase System 11 ODBC driver was working fine. However, it has suddenly stopped working, and seemingly without any reason whatsoever. I am running an NT machine and have checked both the registry and the Data Source setup...
  9. HavaTheJut

    IDE suggestions

    I use JCreatorLE. Its not as feature filled as the IDE's wushitwist mentioned, but its free and gets the job done. Its not at all bulky. Just another option. [morning] HavaTheJut
  10. HavaTheJut

    JAR Signing: Clarification

    thanks [morning] HavaTheJut
  11. HavaTheJut

    problem for running my java file

    In short, only use the batch file. The syntax should be: validate file1 file2 file3 file4 and it looks like file2-4 might be optional. The java command is setup in there already. Read on if you want to know more details. Explaination: The simplest syntax to run a java class is: java...
  12. HavaTheJut

    java compile option to make an applet signed

    Sun has a great tutorial: http://java.sun.com/docs/books/tutorial/jar/ [morning] HavaTheJut
  13. HavaTheJut

    Compiler memory requirements

    I replied to your thread in the other forum as well (you really shouldn't double-post). I agree with Hattusas in saying that you should start with a Visual IDE. Another option is Sun's Visual IDE (Formerly called Forte - I think its 'One' now). This will take a little while to load up on a P2...
  14. HavaTheJut

    Hierarchial Delete - From Parent delete of all the Children

    Heres a recursive function in pseudocode to do that: delete(int id) { int array[] kids = get all children for x = 0 to kids.length if (kids[x] has no children) find info on kids[x] and delete it else get the parent id of kids[x] delete(id) end for delete this parent }...
  15. HavaTheJut

    JAR Signing: Clarification

    I've read over Sun's information on jar signing, but there's still one thing that's not 100% clear to me. Can certificates alone allow file access, property permission, etc.? Or does the certificate just allow the user to change these settings in the Policy Tool for all instances of the signer...
  16. HavaTheJut

    Thread and JTextArea

    To get this functionality, the JTextArea must be in one thread and the file read must be done in another. Since you say that your are redirecting the system out, I assume you have taken care of the first part. Just make sure that the file reading process is threaded and is not in the text area...
  17. HavaTheJut

    Memory requirements

    Sun is the way to go. [morning] HavaTheJut
  18. HavaTheJut

    task switching with java

    Do you mean switching tasks within the JVM or on an OS level? Because if your trying to do that with the OS, Java is not the right language. [morning] HavaTheJut
  19. HavaTheJut

    Applet redraws itself when I switch to another screen!

    Two things I can think of: 1. Use a private boolean field. Lets call it bChanged. Whenever a method makes a change, set bChanged to true. At the start of your paint method, check bChanged before doing anything. After the paint, set it to false. 2. (Not sure if this will work)...
  20. HavaTheJut

    JDBC Io exception: SO Exception was generated

    This link may help. http://www.orafaq.com/msgboard/java/messages/1080.htm [morning] HavaTheJut

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