If you want a program to run for instance only in a Windows environment and you want a .exe file created. Is that possible ? Can you somehow combine the JVM with your code ?

Hello all!This is my first posting. Please excuse me if this question is too elementary, but I entered this particular forum specifically because it is listed as being for those *new* to Java technology. Well, I'm as "new" as you can be!I've just downloaded an editor (JCreator 1.0.2) and ...

Hi,I have my applet/application stored in a .jar. While I had all on a webserver I had no prob displaying the jpg. But now, since I store it on local HD I can no longer display the img. How can I display it, if I don't know the absolute path?

I wrote a simple servlet to get user feed back, and call an object to send feedback to a given address via Java Mail. For some strange reason, the data validation part never works - it is a simple IF/ELSE!Below is a simplised version of the code. Anyone could give some ideas? Thanks a lot! ...

How do i allow the user to click and have focus on a cell in a jtable but not letting them edit it. Thanks in advance Joe

This should be an easy one for you Java gurus out there. :) I'm trying to emulate some Visual Basic functionality, but haven't been able to find the Java equivalent after much digging around on this site and through the SDK docs.In VB, there is a function called String that takes an integer ...

Hello;I have created an applet but when I run it through the browser wondow, it looks messed up.Can anyone pls, advise on what I am missing.Best Regards,PPTHere is the code:-import java.applet.*;import java.awt.*;/*<P ALIGN=center><applet code="FlibberDemo" width=150 ...

I have modified the defaultTreeCellRenderer to include a jButton and a Label on certain cells. Unfortunately I cannot click on the button. Clicking the button selects that row in the tree, which is fine, but it doesn't send the action on to the button. The Button doesn't depress and the ...

can anyone please show me som code that sort a Hashtable, like the one below, by its keys.Hashtable ole = new Hashtable();ole.put(new Integer(2),"erik2");ole.put(new Integer(1),"erik1");ole.put(new Integer(4),"erik4");ole.put(new Integer(3),"erik3");

I am new to this forum. Which is the best book to start learning Java to prepare for Java Certification.

helop,i have a big problem.....i need a java source code for da' checkers games for my project...who can help me !!!hope u all can give some tips or whatever to finish my project.....thank you!!!!

can anyone please show me som code that sort a Hashtable, like the one below, by its keys.Hashtable ole = new Hashtable();ole.put(new Integer(2),"erik2");ole.put(new Integer(1),"erik1");ole.put(new Integer(4),"erik4");ole.put(new Integer(3),"erik3"); ( yes I need to access the items in a ...

I want to get logged in user name of WindowsNT, from my Java program.Is it possible ?

Hello,is it possible to preload classes before they are actually needed by the application? (performance issues)for example, I would like to load a big class (which will be used later on) into memory while the user is still at the login window.possible?thanks,Fadi ...

i have jTree where in the dragtarget n droptarget are both the same treeTree contains large amount of data .... it is in a scrollpanewhen i drag a node to a drop target which is down under...i need the autoscrolling thereany guesses

I'm working on learning Java one small step at a time and I've come upon the following problem:I have four classes that do the work of defining a rectangle of different types (colored, etc.). The following is my code:public class RectTest{public static void main(String[] args){Rect r1 = new ...

ex. String x = new String("c2b2");//0xc2b2i need to convert x to short.i convert x to int first(use the method i write),and get the vaule 49842(decimal).then i convert it to short ,like this:short i = (short)49842;System.out.println("i="+i);but the result is wrongi=-15694Does anyone know why i ...

Is there anybody know how to implement a function to download a file to the printer?Your help will be appreciated.

Hi, I want to display an html document in my directory using nescape. How can I do that?I know that AppletContext can display html, but it has to be in URL.How about a document in my directory?Help please.

hi, guys, I'm a newbie in Java. Hope somebody can help me out.This is what I want get for the output:sth1\tnum1 CCC\t otherthing1sth2\tnum2 CCC\t otherthing2sth3\tnum3 CCC\t otherthing3the "\t" here is table format.I want all "CCC" in the same position, while my num1/2/3 will probably be ...

Okay, this problem all of a sudden popped up and isn't making any sense whatsoever.s is the String I want to paint.s.length = 15. I tried it using println, it says 15.This works:g2.drawString(s.substring(0, s.length), x, y);This doesn't:g2.drawString(s.substring(0, 15), x, y);This is what I ...

Hi,I'm trying to make the following frame window scrollable, so when I add graphics it can scroll if the graphics are out of view. At the moment I get a scroll bar but with no scrolling. Even when graphics are out of view it doesnt scroll. Do I have to set the scrollpane or panel to a ...

Hi,I'm trying to make the following frame window scrollable, so when I add graphics it can scroll if the graphics are out of view. At the moment I get a scroll bar but with no scrolling. Even when graphics are out of view it doesnt scroll. Do I have to set the scrollpane or panel to a ...

To whomever can solve my problem. I know that the J++ environment is not supported here but when I run my applet using J++ it works fine, but as soon as I stick it on the Web or use appletviewerit doesn't work. The is a ButtonHandler class I am using and I know that the class is being called ...

Hello,Can anyone please point me to a description of the View architecture of the JTextComponent? For example, I'd like to understand how line breaking is done internally in text controls.Javadoc specifies that one can implement a structured Document (similar to an XML document), but I've ...

How do I convert a String to a byte[] array?

What is the best development studio to program in? I want the studio to be flexible (i.e. being able to upgrade the jdk or add j2ee to it without any hitches)Thanks,Greg

I want to store a variable called 'Data' of type 'byte[20]' in a single column in Microsoft Access table. Does any one knows how can I do this !!!

I want to make it so the user cannot move columns around in the display. Ideas?

I have an applet, and when I put this code at the beginning of the run method, it freezes up and wont do anything. (no exceptions, just sits there)Random rand = new Random();int CurrStyle = rand.nextInt(3) + 1;int NextStyle = CurrStyle;why?

I'm trying to really tighten up a Java user application under 1.1, but most of the tools really aren't up to par. Right now, I'm focusing on Windows. I've resorted to a native DLL to measure actual memory used, so that's quite useful. I was unable to get NuMega tools to give me the figures ...

I have extremely large data files in this format:027/18/01 3:58 PM0300010300000000000000000304000000000003010100000001027/18/01 4:03 PM0300020300000000000000000304000000000003010100000002027/18/01 4:12 PM0300030300000000000001000004000000000003010202000002027/19/01 8:28 ...

HELLOHow to find how many bytes are therein a directory?I DON't want to use list() ,to find each file in directoryand using lengh() in for loop and then adding all.Problem is: I want to find how many files are there in all directory whose size is ,say greater than 1000 bytes.So before ...

I want to pick a random letter from a string. This is what I have...char RANDOM_letter;String = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";RANDOM_letter = ?;

I am deploying a Java application soon, but I am running into a problem. To deploy the application I need to install the jre on the users machines for them to run the application. The problem is that I developed the application in JDK 1.4, and half of the users have jre1.1.7 installed on their ...

I am confused as to the simplest way to serialize an object (actually a simple JavaBean) to a database through jdbc. What classes do I extend and what methods do I overwrite? There are no transient data involved.

Here are some of the useful Java links I've found:Developer Connection .................... http://forum.java.sun.com/forum.jsp?forum=54Java SE Platform Documentation ..... http://java.sun.com/docs/index.htmlTutorials ...................................... ...

Hi!How come none of the functions of my inner classes are documented when I use javadoc to generate a doc?ThanksChoub

I'm looking for an XML equivalent to class HTMLEditorKit which extends javax.swing.text.html. Even if it's not included in the JDK, I would be happy to have a third party tool which does the same.TIA.

java.text.SimpleDateFormat sdf = new SimpleDateFormat();try{Date date = sdf.parse(elementValue); System.out.println(sdf.format(date)); application.setDecisionDate(date);}catch (Exception e){e.printStackTrace(System.err);} ...

Hello,I'm currenntly facing some problems with my application.I have developed a passwordframe for an application and what i like to do is after the user keys in 3 trys of the password the frame would actaully dispose.But currently i'm having a probelm displaying the error message.I relly ...

an XSL translator.the JEditorPane setPage needs a URL, I'm wondering if there is anyway way to have the XSL tool write directly to the JEditorPane?

I got a bizarre problem. What I want to do is to simply use request.setAttribute() and request.getAttribute() methods to send an object from a servlet to a JSP. It work well as long as I dont put my scripts in packages. Take a look at my scripts and tell me if you see something wrong please. ...

Hoi, hoi,I have a reference problem.the problem is as follows:I have a panel (identificationPanel) which contains twoother panels (NameDatePanel and TelFaxPanel).I want to add the contents of these fields in a database.I now have:public class ControlPanel extends JPanel {private JButton ...

I was wondering if there was an easy method for centering an image/shape/etc in the middle of a JPanel.

I am trying to write a simple app that sets up a table and allows input to the cells. I want to have it do caluculations when I push a button. I have built a table using a string array and a 2 dimensional object array. what sort of code do I put in the event action to change the initial values ...

Hi all,I have a number 234.21, and I want a method which can truncate the digits after the decimal point. The ouput should look as 234 Is there any method which I can use.Please give me some examples if you have.I looked at DecimalFormater, but as I am little dumb :-), it is little confusing ...

Hi there,I wonder if anybody could help me with a problem I am having. I have a pre-existing program which is run from the command line (DOS/Linux) and I would like to know how, if it is possible, to use a Java program to call it. Is it possible to do it in this way:void runProgram() {//some ...

Hi,Is there a way to deselect an already-selected textArea?I am trying to display the bottom of the textArea to user, but setCaretPostion(textArea.getText().length()) only works for me if I select all the textArea. Problem is, there is no deselect API of the textArea, so I ended up getting a ...

Hi, all. I don't know how to solve the problem. Please help me. 1. There are 50 funds. 2. 10 of them have amount and another empty. I need to show all funds, but funds with amount first and 40 empty last.I can get first 10 and all 50 together. But I don't want to repeat first 10 lines. Sorry, ...