Solved Posts by Ezzaral Page 19

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Smoking

Just ran across a link to this thread so I thought I would update: I quit two months ago. One less smoker in the world.

Geeks' Lounge

Ancient Dragon commented: Great Job :) +36

jasimp commented: Congratulations :) +9

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Multiple Class Applet

Try it with your code base one level higher, like this

<html>
<applet code="Sorter"
        width="800" height="300"
        [B]CODEBASE="C:\Documents and Settings\Paul\My Documents\NetBeansProjects\Sort2\build\classes">[/B]
</applet>
</html>

It looks like you had the package directory in the previous code base.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: How to count number of tables in a db using java?

You can use the following query to get a list of the non-system tables

select name from MSysObjects where type=1 and flags=0

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Prototyping / Drawing GUI Screens Question

Ouch :(

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Prototyping / Drawing GUI Screens Question

Hope you aren't low on time or disk space ;)

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Prototyping / Drawing GUI Screens Question

This took about 2 minutes to create:

(It actually took longer to screen shot it and get the attachment posted than it did to create it)

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Prototyping / Drawing GUI Screens Question

Why not just create the GUI itself with Netbeans (or some other GUI tool) and a little bit of dummy data? You don't have to actually wire it up at this point.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Problem extending DefaultStyleDocument--insertString jumps caret to end of document

I just fixed the behavior that he was unhappy with, but yes, it is a bit more efficient. He was re-processing the entire content of the document when he only needed to re-process up to the current insertion point for the highlighting.

Software Development java

sciwizeh commented: Very good information, thanks +1

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Problem extending DefaultStyleDocument--insertString jumps caret to end of document

Your caret is going to the end of the document because you're removing and re-inserting the entire content. The caret is just staying at the position of the last insert. You can fix that by changing these two lines in your SyntaxDocument2.insertString() method

String str2 = super.getText( 0, super.getLength() );
        
        super.remove( 0, super.getLength() );

slightly to get only the "upstream" portion of the document plus the string you are entering

String str2 = super.getText( 0, [B]offs+str.length()[/B] );

        super.remove( 0, [B]str2.length()[/B] );

That way you are only operating on the portion up to and including your current insert position and the caret stays at that position.

There is probably an easier way to do that with a DocumentFilter that doesn't require removing and re-inserting all of that content, but I've never used styled documents much so I can't say exactly without playing around with it more. You might take a look at them and see if it could save you all that insert, remove, and re-insert overhead.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: why doesnt daniweb has a raima database section?

Third. It was posted twice just today. Try counting again.

Databases

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: why doesnt daniweb has a raima database section?

Duncan, yours is the third posting of that URL. I believe the point has been made.

Databases

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: i am on youtube now :)

I agree with the others above: enough with this public crush thing you have going on. At best, it's disrespectful and you should be old enough to realize that.

Geeks' Lounge

mitrmkar commented: Well said. +7

William Hemsworth commented: :) +7

Comatose commented: Pwnage! +12

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: how to search a word in a text file ??

This example may help: http://www.exampledepot.com/egs/javax.swing.text/style_HiliteWords2.html

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: invoking JOptionPane from user-defined class

Yes, you can. You do have to import the class, but you don't have to instantiate it. Static methods are invoked directly from the class name.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: invoking JOptionPane from user-defined class

No, you don't need to instantiate the class to call static methods. Just prefix the method with the class name. So using stultuske's class above you would simply call

String response = Messages.askInput("Enter some data");

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: invoking JOptionPane from user-defined class

That is exactly what the static methods on the utility class that stultuske suggested above would do for you.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Why dont you post your first posts here?

I never posted in Community Introduction either.

Geeks' Lounge

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: My textArea problem

Because you have declared and added that text area as a local variable in your constructor here

JTextArea txtAreaArticle = new JTextArea(15,40);

That is declaring a new JTextArea of the same name local to the constructor block. You need to drop the "JTextArea" type from that statement if you want to initialize the one you have already declared at the class level.

txtAreaArticle = new JTextArea(15,40);

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: My textArea problem

By 21 posts, you should know how to use [code] [/code] tags.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: A question about threads...

And did you try it with larger values? Run this with various values for the sleep time

long start = 0;
for (int i=0; i<20; i++){
    start = System.currentTimeMillis();
    try {
        Thread.sleep(500);
    } catch (InterruptedException e) {
    }
    System.out.println((System.currentTimeMillis() - start));
}

And the doc on currentTimeMillis() has the following to say

public static long currentTimeMillis()
Returns the current time in milliseconds. Note that while the unit of time of the return value is a millisecond, the granularity of the value depends on the underlying operating system and may be larger. For example, many operating systems measure time in units of tens of milliseconds.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Any JFileChooser experts?

That is the currently selected file, so you could do this

JFileChooser chooser = new JFileChooser();
chooser.setSelectedFile(new File("Write your file name here"));

Personally, I don't see why you would want to, but that will do it.

(And there is no one named "u" here. Leave the lazy chat speak at the door)

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: JFrame Won't Render Properly

Take a look at SwingWorker. You may want to read this tutorial as well: http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html

Software Development java perl

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: some questions & some answers

I can follow the language just fine. It is the concept of cheating as some kind of "buffer" that eludes me.

Computer Science

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: some questions & some answers

What? I cannot make any sense out of what you are trying to say there at all.

Computer Science

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: some questions & some answers

i dont violate any copyrights or so, so from their perspective my potential thoughts do not cause any problem. i dont violate any laws.

I did not mention violation of laws. Show them this thread if you are so proud of it.

By the way, one of the christian missioners in my company gave me two dvds and i am totally persuaded that darwinism is just impossible because even the most primitive cell requires all at ones and simultaneous structures. i will post the name of that dvds later.

This has nothing to do with the discussion at hand and belongs in the lounge.

Computer Science

stephen84s commented: Bang on target !!! +7

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: some questions & some answers

I think the entire thread should be deleted. It's certainly in conflict with the "We only give homework help to those who show effort" mantra that can be found posted through the site.

I also have to wonder how your employer and coworkers would feel about the level of ethical flexibility you've pronounced in this thread.

Computer Science

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Unicode reading

I don't think you should have to do anything special with it since Java uses unicode by default. Perhaps the file itself is using some other encodiing? Maybe this link could be helpful: http://www.exampledepot.com/egs/java.nio.charset/ConvertChar.html

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: some questions & some answers

So you are just posting answers to homework questions so students can Google them easier?

Computer Science

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: String Search in Java

Well, those look like XML tags, so an XML parser is one possibility.

The regex package is another. http://java.sun.com/docs/books/tutorial/essential/regex/index.html

If the text is simple enough, the methods on the String class itself, such as indexOf(), will probably suffice.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Animation Thread - Paint is only called once

Just to provide a little more explanation why that works and why you had the previous difficulties, you were executing your animation loop code that slept and called repaint() on the event dispatch thread - which is the same thread that is responsible for processing those repaint() calls you were sending. By moving the animation code to it's own thread, you free up the event dispatch thread to respond to the repaints() that you are requesting.

You can read more about concurrency concerns in Swing here if you like: http://java.sun.com/docs/books/tutorial/uiswing/concurrency/index.html

Software Development java

VernonDozier commented: Good link. +11

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: How to set your icon as a file icon in java application?

Maybe you can get somewhere with this: http://java.sun.com/developer/technicalArticles/J2SE/Desktop/jdic_assoc/

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: How to set your icon as a file icon in java application?

Those are things determined by the OS. Windows display the icon of the file type association. Altering any of those would require Windows-specific code to alter the registry for that association. Java itself does not get involved with those things.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Output and null

You only need to return a single value from that method: the value the user selected from the menu.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: %USERPROFILE% equivalent

Take a look at the list of properties that are always available through System.getProperties(). OS is one of them.

You can also dump a list of all of them to sysout easily with the following code

System.getProperties().list(System.out);

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Method problem

You don't need JUnit at this point, you just need to place some debugging println statements throughout your methods so you can see what is going on inside them (if you don't have or know how to use an IDE debugger).

Trying to learn how to use JUnit is not going to speed up solving this problem at all - it's just going to add a lot of unnecessary confusion.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: %USERPROFILE% equivalent

System.getProperty("user.home") will give you the users home directory.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: TextField cannot set & null pointer

masijade means that the TextField variables themselves might be null, as in you have not initialized them with "new TextField()". He wasn't referring to them being empty.

The code you posted above doesn't really answer that question, because you didn't post the addField() method code.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: ImageObserver and Animated GIFs

Ok, two things:
1) Load the Image through an ImageIcon

img = new ImageIcon("gifTest2.gif").getImage() ;

ImageIO.read() returns a BufferedImage, which doesn't update the ImageObserver. I couldn't tell you the exact reason why because I don't really mess with images much, but perhaps an animated gif needs a VolatileImage instead of the BufferedImage the read methods gives you.

2) Make sure your signature matches when you override a method. Instead of imageUpdated(), you need

public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h) {
        repaint();
        return true;
    }

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: ".class" expected error

Do you see any variable named "A" declared in your main() method?

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: ".class" expected error

Drop the [] from "A[]" in this portion array_sum(A[],first,last-1) , you only need those in the declaration, not when using the variable. The array itself is merely "A".

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: int to string problem, need help quick

So use String.valueOf(int).

Software Development java

notuserfriendly commented: strongly approve and thanks so much +3

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: echo char

You can't place this line

passGet.setEchoChar('*');

in the class body directly. It must be within a method.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: echo char

Well, assuming that you have imported the TextArea class, those two lines compile just fine in my IDE.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: echo char

You've probably missed a type designation on a variable or parameter somewhere above that code then, because there is nothing wrong with those two lines. Which line specifically is indicated as the cause?

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Need help with Lottery program

Most likely because the formula you implemented to determine "match all digits" doesn't do that at all. Those are rather odd relationships that you are expecting between the division and mod results. You need to break the numbers into their components before you make the comparison checks.

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Need help with Lottery program

You should probably explain what it is doing wrong, what you expect it to do, and any errors you receive, rather than expecting people here to pick through it and play "find the problem with this".

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: XPath question

This uses the JDOM packages.

org.jdom.input.SAXBuilder builder = new org.jdom.input.SAXBuilder();
Document doc = builder.build(new File("test.xml"));
XPath xp = XPath.newInstance("table[tr/td/b/font='Nohup Files']");
List<Element> result = xp.selectNodes(doc.getRootElement());
XMLOutputter out = new XMLOutputter();
for(Element e: result){
    System.out.println(out.outputString(e));
}

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: Multiline JLabel

<html>Name1<br>
Grade1<br>
Name2<br>
Grade2</html>

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: XPath question

table[tr/td/b/font='Nohup Files'] seems to work for getting the table element, if that's what you are wanting. I tried it out with the following structure

<root>
    <table>
        <tr><td><b><font>Not this one</font></b></td></tr>
    </table>
    <table>
        <tr><td><b><font>Nohup Files</font></b></td></tr>
    </table>
    <table>
        <tr><td><b><font>Other</font></b></td></tr>
    </table>
</root>

Software Development java

Ezzaral 2,714 Posting Sage

16 Years Ago

Re: First Post/Sudoku Solver problems

I'm think you can set the working directory through the project properties in Eclipse, but I don't have it here to look myself. I would think the root working directory would be "Desktop/CS Programs/CS 2410/CS 2420" but that may not be the case.

Software Development java