Can we have an infinite while loop in init() part of the applet?-Shilpa.

Below are some classes to help you to correct the "TestSL.java".// class Student (abstracted class)abstract public class Student{protected String name;protected double mark;public Student(String name){this.name = name;mark = 0.0;}public String getName(){return name;}public void setName(String ...

There are two errors in "TestIntegerStackWithExceptions.java". Below are the classes to help you to correct./** * A class to represent the negative size exception. (NegativeSizeException.java) * * @author Lam Chou Yin @ Edwin * @version 1.0.0 18 October 2004 */public class NegativeSizeException ...

Hello GuysI don't know if this is the right place to post this thread, hoping you execuse me.my problem is that i want my java application to scan an image, if I open the twain software, and click SCAN then everything is ok. But if i hide the twain software, or allowing automatic scan, then a ...

I've written a simple applet that compiles cleanly (apparently), andwill run on Solaris and Red Hat 9 using appletviewer; and it will runon a friend's WinXP Pro system. But when I try to run it on my WIn XPPro system, I get these messages in the appletviewer window:error:nullthenStart: applet ...

Hi!Sorry, if I'm writing in the wrong forum, but I think, here's a good place...I just realized that there's no literal for defining a binary constant in Java.... am I really right ?We only have the praefixes 0x... for hex and 0... for octal ?Perhaps I have overlooked something ?I frequently ...

Hello, Here is a (very) basic question about patterns ...I need to find the names of all the columns of an oracle table. Thus I use the DataBaseMetaData interface and its method (String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) The catalog, schemaPattern, ...

Hello guyswhy doesn't the line [code:]string msg = ("my msg");[/code]works? do I need to import something at the begining of my application?another question: how to add text to a container? If string msg would work, then container.add(msg); might work, ...

hiIf I have two classes : one and twoIn class two I have a variable called : actionIn class one I want to check what is the value of action.How can I call action?

hi friends,i have used JFrame in my application. application runs perfectly but everytime when we run it, we have to maximize it then only controls on it are appeared.Also i want to set position of JFrame window at center. but it takes top-left position all the time it loaded.my code is :public ...

How to insert image to Qrcale database?Could you give me some codes?Thank you for your help.

Could someone please tell me when it's the source code for J2SE 5.0 going to be available under the Sun Community Source Licensing page: http://wwws.sun.com/software/communitysource/j2se/java2/download.html?Thanks

Hello.We are going to develop a managment software that works via web. But this software is not a simple managment software because it has to include an 2d/3d editor (cad like). So we need:- a database that works in a server- an application that works in a client machine. This application is a ...

Hi all is there anyway to make a JButton to be default in a dialog box? I found that there are only 3 methods which are:isDefaultButton()isDefaultCapable()setDefaultCapable()But these methods are not useful in setting a JButton to be default in a dialog box. what do i do? Plz help and thanx in ...

Hello,I use JDK 5.0 with netbeans 4.0 beta 2I get an error when I implement an interface like in this following example:public class MyClass extends javax.swing.JPanel implements java.awt.event.KeyListener { public MyClass () { }}The text message is:MyClassMyClass is not abstract and does not ...

I install J2SE SDK 1.4.2 AND NetBeans IDE3.6today .... But I do not how to write an applet... Help me , please .......Thank you very much .

Hi,I'm doubting this is even possible, but I wanted to check before I gave up all hope :)Is it possible to convert a String to an actual function call in Java?For example if I have the following:String functionName = "classname.myFunction()";is there a way to actually call the function ...

import java.math.*;public class Test{public static void main(String args[]){Double a = new Double(0.865);System.out.println("The Rounded price a is "+roundOff1(a));}public static Double roundOff1(Double finalDiscountedPrice){BigDecimal roundfinalDiscPrice =new ...

im trying to make the FIND& REPLACE functions of the any Notepadi used fo FIND :// the codeString findThisWord = JOptionPane.showInputDialog(myTextArea,"Find:", "Find",JOptionPane.PLAIN_MESSAGE);int ff= findThisWord.compareTo(myTextArea.getText());System.out.println(ff); // the endthe ...

I teach Java and have students that need the JDK 1.4.1 on their home computers.But their home computers have dial up. Really slow dial up.Is there any way to acquire a CD or DVD to lend them so they can compile their code at home?Sun seems to be totally oriented to doing downloads (which I did ...

I am new to java program. I would like to know how to do the sorting in an array object.I have four fields [ Author, Date, BookTitle, Status, ] for storing the data. I would like tosort as follows:Author [ascending order]Date[descending order]BookTitle [ascending order]Can anyone show me the ...

Hi everybody!! plz help me with this doubt bcos itz been bugging me for a long time.Java is installed in my system at "C:\J2SDK142" and its JRE at "C:\Program Files\Java\j2re1.4.2_04". I want to find the path of the compiler which is at "C:\J2SDK142\bin" using java. How can i do it? Plz help ...

i want to get the time & the date from the systemcan any one help me ?

Dear I have installed J2sdk1_4_2 and J2eesdk1_3_1. I compile the code like as follow : Properties env = new Properties(); env.put("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory"); env.put("java.naming.provider.url", "jnp://localhost:1099"); ...

How can I do dynamic input in Java?

i'm new to java and am testing it to both linux and windows. i started with basic simple tutorial after installing j2sdk1.4.2_06 in windows and linux. i have no problem with windows except with linux. i can compile and run using javac and java commands in the terminal however, when i started ...

I use the j2se 1.4.2_05-b04, and met a problem.the code is as follow, I have encoded the source code with UTF-8OutputStreamWriter ow = new OutputStreamWriter(System.out,"UTF-8");System.out.println(ow.getEncoding());ow.write(" ?);ow.flush();ow.close();I got the ...

i tried this program in linuximport javax.swing.JOptionPane;public class Welcome4 {public static void main (String args[]){JOptionPane.showMessageDialog(null, "Welcome\nto\nJava\nProgramming!"); System.exit (0); //terminate program }when i typed javac Welcome4.java in the terminal the result ...

i am have problems changing the size of my java applet, could anyone please helpcheerssinky

I use the Visual Interdev J++ IDE and when I run ...Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");I get. ...java.lang.ClassNotFoundException: sun/jdbc/odbc/JdbcOdbcDriver only when using the the J++ IDE. But I don't get an error when I run the code with the java.exe . I noticed that J++ uses ...

I am able to display the fonts in windows successfully. Chinese fonts are installed in linux as I am able to view chinese pages in mozilla. But I am not able to display unicode characters on JWindow or JLabel in Linux. What are the chinese charsets that can be used. Also I feel that the font ...

HiIm not clear as why this code works class a{ void meth() {int i;i = 0; }}and this does notclass a{int i;i = 0;}rgds

I have a program, that compiles and runs well on Java 1.4 but has serious trouble on Java 1.5.I will click a button and then the GUI will freeze for 10 seconds, with the CPU at 60%. It shouldn't be doing anything intensive, just updating a couple of JLists. The problem is very inconsistant. I ...

Hi all, I 'm having some problems using a filter under XP, my filter is being ignored :-(... here is a sample of my code. FileDialog fileDialog = new FileDialog(new Frame(), "Select XML definition file"); // this fillter is being ignored fileDialog.setFilenameFilter(new XMLFileFilter()); ...

Hello everyone,I just wanted to introduce myself. My name is Rusty Rothwell, and I am finally jumping into Java. In High School I learned ColdFusion, ASP, C++, and Basic. I remember none of that. I am however a intermediate JavaScript programmer, great with HTML, DHTML, and alright at CSS. I am ...

Dear Friends How find the java version of my java application or source Suppose my application developed by using jdk1.1 Now i m using jdk1.3 and jdk1.4 In this case i want know the java version of my application

Hi all,I'm writing a program that populates a textarea with medical terms and such. And, the problem is I need to give an explanation to the more difficult words by allowing the user to click on the words and a popup window with the explanations will appear. I'm not familiar with the mouse ...

Hi,I'm using the java Preferences to store some user's prefs. Some of those prefs are stored as Gzipped serialized classes. When I tried to read the xml File generated by the Preferences api and de-serialize thoses classes their names changed.Exemple I' serialize an instance of "com.package. ...

Hi all i cant convert the String into int although using Integer.parseInt & vice versaany ideashere is the code// fontCB & styleCB & sizeCB are ComboBoxesString fontName,fontStyle,fontSize;int fontStyleInt=1,fontSizeInt=1;fontName = (String)fontCB.getSelectedItem();fontStyle= ...

I made a small addition program using 'C'. It accepts 2 no.s and produces the result.how can i send the 2 no.s to the C program? Here is the code i tried:Runtime r=Runtime.getRuntime();Process p=r.exec("add.exe");InputStream ios=p.getInputStream();OutputStream ops=p.getOutputStream();String ...

Hi, I have a swing application which contains two text areas, during some process I print information in the textareas but information only appears once the "do while" is finished. Also I call a pause() which only is supposed to pause between each line but as I said the text area is only filled ...

Greetings,I asked previously a similar question but I didn't got a solution to my problem, so i'll explain in details my problem:I have a Java File called Senior.java, and another one called Properties.javaProperties.java is a dialog box that I can open from the main application Senior.java ...

Apologies for the posting to this forum in the first place. I'm trying to find out what the proposed schedule for closing support on the J2SE 1.4.2 is, given that 5.0 is now on general availability? I'm trying to determine the best platform to develop on, given that we don't want to start on ...

Hi folks,I have a problem with running applets in both I.E. and Netscape. I downloaded NetBeans which contains J2SE SDK. I also downloaded JRE. Originally I could run applets after these downloads. I then downloaded J2SE SDK by itself which caused me no ends of problems as I had Netbeans and a ...

Hi,I need to get the default charset of the platform that I am using. I found a workaround by using an InputStreamReader with the required parameters and calling getEncoding() method. After this, I can user Charset.forName(...). On Windows platform, I get "Windows-1252". That's ok.This ...

I made a java file called "abc.java". After compiling this, it gives a class "xyz". The source is as follows.class xyz{public static void main(String args[]){ System.out.println("Hello World");}}Is it possible to find the name of the class that contains the main() method? Or after compiling, ...

Hi there,i got a problem with creating a directory in Linux Operating system.I used mkdir() method to create a new directory in windows operating system and it is working fine... when i am using the same class in Linux simply it is not creating any directory and returning "false" in that ...

Hello guysfor the previous weeks, I was developing my project using Notepad for editing, and javac from the command prompt. Recently I moved my work into NetBeans 3.6, and i modified my code greatly, by arranging my java files into packages and I thought I had accomplished a great step by ...

Hi everyone,I am currently programming a genetic algorithm(GA) for my work and a came across a small difficulty.GA usually use binary strings for their internal operations. So I decided to use Double.toLongBits() to convert a double into a long and then Long.toBinaryString() to get a String to ...

Hi, I am trying to write a Java program that allows the communicate with Computer's Communication ports (Serial/Parallel or USB) or the Infa-red communication port. At this moment, i still cannot find any ways to communicate with any of the ports. Any one have any ideas what packages i should ...