Hi!I would like to know how to put scrallbar in frame and to make the frame move up and down ( to make it look like html page). Thanks!!!!!!

I want to modify or to insert new fields in the object HTTPServletRequest.Is it possible to do it and how?Thanks for reply

Please, can anyone give me a hint.It seems I miss something important.I can't set the table columns to an appropriate width.Please, help !!!

Is there anyway to put the contents of the JOptionPane into multiple lines in the java code for I have to scroll horizontally at the minute to reach the end of the contents for I have alot of information on the JOptionPane

Hi, I am running a server/client program displaying an array in the server window. problem is I need to run an infinite for loop that refreshes the array onscreen every half second or so. I am running the server and client on win2000 command prompt(dos). If my server code is:for( ; ; ...

abstract class Datum {private Object value;private Object name;...Datum(Object value) {this.value = value;}Object getValue(){return value;}abstract boolean lessThan(Datum d);boolean greaterThanOrEqual(Datum d) {return !lessThan(d);}} class FloatDatum extends Datum {FloatDatum(Float value) ...

I have some critical information in the source code of my program and I want to prevent a user from decompile the byte-code in order to retrieve those information.Is there a solution ?Floweb

Hi!I have a wish!When I open the table, I want the user to only be able to select whole rows in the table, but not allowing them to edit the cells.When the editButton is Pressed, I want the user to only select one and one cell, and be able to edit them. When the editbutton is pressed for the ...

Hello JGuys...Using the method Class.getDeclaredFields it's possible to acquire all fields declared in a given class; but the fields declared in the methods aren't acquired.So, is there a way to acquire the fields declared in a method scope ?Thanks in advance.-- Lelio. ...

Hi all,I'm a beginner in java and i'm investigate in a web project (website) which should display statistical charts. I did a beans to generate basic bar charts, but it's most difficult to build a pie chart. That's why i need help to put me on the right way of building a Piechart beans.All ...

Has anybody example of http post message sending? I need to send big amounts of binary data.

I have a window that uses borderlayout. The CENTER panel contains a table. The NORTH panel is in flowlayout. It contains 3 other panels that contains components. My problem is that occasionaly when the table becomes populated with data, the components in the north panel resize unexpectedly. ...

I have seen a lot of topics in this forum about rounding to a certain number of decimal places, but I don't see anything about rounding numbers like 54345 to 54000. That is what I want to do. Any ideas?

I am trying to develop a help window that will display a large amount of text (3 or 4 paragraphs) about the previous window's options. I am currently trying to read a file with the text and place it on a JLabel that will appear in the help window. I can't quite get the syntax right to read ...

Hi !I have an JTable connected to a AbstractTableModel.How can I change the size of the columns ?TabModel tabModel = new TabModel();JTabletable= new JTable(tabModel); The class TabModel is my class extends AbstractTableModel.Or how to you change the size of a displayed column in a table ? (not ...

I am writing an application that will be used by non-tech people. If I write the application using the JDBC-ODBC bridge and connect it to a Microsoft Access database, will the users also need to have Microsoft Access installed on thier machines? If so, how can I get around that? My application ...

Please give me an advise : how it should look correctly: if ( a==1 or a==2){do}What should I use instead of "or"Thank you

or the windowNT4.0 on my PC?I cannot compile my Java appication anymore after I ran the realTV program (one night ago)the compiler is jdk1.3.1 (standard version).following messages showed up: the symbol ####(one of classes) cannot be resolved the class ### location cannot be found.... ...

After printing, my swing gui takes 3 times as long to update 2d graphics (using paintComponent). Before printing, it updates very quickly, and the slowdown only occurs after printing. Anyone know how to fix this?

Say I wish to do a mget to ftp.microsoft.com.Anyway to do it.Thanks.

i m converting a string to float/double obtained from a textfield, that is to be used in calculations. i m writing the code below (which i think should work OK but it isnt), nebody can tell me wat is wrong with the following code.Thanksvoid Convert(String text) { /* text string is passed double ...

Hi ,can anyone guide me as how to set session time for set of servlets in apache webserver like how we set connection time for database?Thanks.

I just read a rather disturbing article that Windows XP will not implicitly support Java. To run applets from java-powered web-sites will require te average user to manually download the JRE. For a developer to do so is a non-issue, but for the average user to do so may pose a problem for the ...

How can I make a JTextField behave like the cell in Excell (you click on the cell and all it's contents are selected)?

Hey all, I've got an image icon that I'm using in a program I'm writing, and I wanted in to appear in a frame of a certain size. The thing is, I want the picture to automatically shrink to fit into my alotted space. Is there a function that could do this for me ? thanks,Angus ...

Hi,I really confussed with this: I have compiled java source files into a package and tried to use but the classes can not be found. Should I separate class and source files after compiled with packages names. I hope you understand what i mean.Thank youSo Jag ...

Hi,I'm using a JPopupMenu with a JPanel and a couple ofother components in it. The problem is that when I'mpressing a component everything else disappears. How do I get the popUpMenu to stay on top, visible, while using other components in the menu? I want the menu to stay visible until I ...

I want to add a mouse listener to a JInternalFrame. (Not to components contained by the frame.)It seems like the only event which a JInternalFrame can listen for is InternalFrameEvent.Is there a way to capture mouse events also, or instead of InternalFrameEvents.Thank you! ...

This code doesn't repaint itself when one of the methods to reposition the label is called (eg labelLeft()). I could really do with knowing why not.<code>import javax.swing.*;import javax.swing.table.*;import vdt.*;import java.awt.*;public class PreviewLabel extends JComponent{ JTable ...

Hey all,I've got an image icon that I'm using in a program I'm writing, and I wanted in to appear in a frame of a certain size. The thing is, I want the picture to automatically shrink to fit into my alotted space. Is there a function that could do this for me ? thanks,Angus ...

I don't know how i can obtain the keys from the values in the java.util.TreeMap. I can iterate through the key-values collection, but i don't know how i can specify a value to obtain a key.

Hi,I am trying to write an app that will start with an overview frame that allows the user to access several other frames. He uses the other frames to define different objects. How do I pass the information from the second frame back to the first frame.e.g first frame has 3 buttons define ...

I am new in java and I have few questions. How to run the java compiler in a non dos enviernment like Win 2000. I have JRun. Any clue ?

We are just starting a new application, and I would like to have any information on Code standard (web site, books ... or from your own experience), what to avoid in order to get good performance, how to make a program parametizable ? thank you for your help .Chantal

I am new in java and I have few questions. How to run the java compiler in a non dos enviernment like Win 2000. I have JRun. Any clue ?

I want to start a VM from a C program using the Java Invocation APIand start a java application via JNI. The java application should be ableto call functions from the C program. The platform used is Windows 2000on x86 hardware.I hoped the following piece of code would do the job:- #include ...

Simple question: Where can I download the JVM from IBM? I tried the IBM web site but it's not so intuitive (they have downloads for Visual Age available).Is the download just the JRE (without class files) or does it also include the API jar files? If so, what version of the API does the IBM ...

Hi,I'm writting an applet in which I use getAppletContext().showDocument with an URL.The problem is that I'm using URLs with username and password ( http://user:password@site.com/page) and it isn't working because the browser is getting the URL http://user/page.Is this a bug in the URL class? ...

I am new.

'ello . . .Let's say I've got a base class, "Element," and that "Switch" and "Card" extend Element. I've also got a base "Loader" class, and "SwitchLoader" and "CardLoader" which extend like you'd expect. There's also some sub-classes off of SwitchLoader and CardLoader which talk to ...

public static void main(String[] args)what is that means?

How is possible to select multiple rows in a JTable and then remove them?Could someone help me ?Thanks Alex

Does anybody have a code snipet for connecting to a MQSeries Queue in a remote server.Appreciate any help!F.S

Hi There,I need to make an applet, that can be implemented in a website, but when it's loaded onto the clients computer it must be able to communicate with the serial port.Now is this possible with applets? Do i need some extra stuff (i can imagine that for security reasons this will not be ...

I have a web server that I need to update every so often. It's just a text file, and I'd like to be able to do it from a browser. Each line in the file contains one word. I want to be able to add/delete/modify words(lines).My questions are:-Do I need to write a servlet to do this?-I'm sure I ...

If I add a ComponentListener to a component the ComponentEvent is fired all through the changing (e.g resizing) of the component (e.g thru mouse drag). The problem is that if I want to call some custom code based on the ComponentEvent it would get called repeatedly in the present scenario. I ...

i m using public boolean action(Event evt, Object arg)but it gives a deprecation error. what is the alternative?

Hi,I am a newbie to Java. I am trying to figure out how to write to the next line in a JTextField, using a second *textfieldname*.setText("stuff") command. I am just able to write to the first line and the next *.setText() command overwrites the previous line. ( I'm not even sure if I'm ...

I'm using Forte, but I wonder about alternatives like JBuilder? Forte seems a bit immature compared to something like (gasp!) Visual C++, but of course the price is right :^)

Any one used JBuilder his feedback of the software. It is a good IDE ? if you know a better one please tell me. Thanks alot !