Java Forum

now i am leaning thunderhead tool for my project.will it be useful for my carrier.can any one tell about the scope of the thunder head tool .which are the companies using this tool?

The program below simply reads a file called FileTest1.java(itself) and prints it to the console import java.util.Scanner; import java.io.*; class FileTest1 { public static void main(String args) { Scanner inputFile = null; try {

Dear All, I have an issue with destroy() method of java.lang.Process class. All what I am trying to do is, controlling the execution of one program through another. Let's say, Program B has to be executed conditionally through Program A based on the commands it gets from the user. Let's say, we have two inputs, "start" and "stop" to drive the...

public boolean equals(Object o) { if (!(o.equals(null))) { // * if (o instanceof foo) { if (this.equals(o)) { return true; } } } return false; }

Dear All, Can anybody help me about my coding, i'm inserting the image file to database using jsp. When i execute the code, the following error is occurred: java.sql.SQLException: Insert Error: Column name or number of supplied values does not match table definition. I'm using MS-SQL Server. My code is:

Hi guys. I don't know how to implement this so i was hoping if any of you can help me. I have a code like this one: public static void main (String args) { //create frame and button .... frame.setVisible(true); frame.add(button);

hi! i was doing wondering if there's a way to print out & increment 3-digit-serial no.? i was planning to print out an invoice. i want the starting of the invoice to be in this format YYYYMMDDNNN (where YYYY is the year, MM is month, DD is date & NNN is serial no (e.g: 001, 002, 003....) ) i've did the Year, month and date already. but when i...

Hello, How should I pass a function as an argument? Regards, Pieter

Hi, I am trying to implement Java Web Service using Apache Axis2 and Eclipse as a tool. I have created the basic code and deployed the service using various eclipse plugin but when I try to invoke the service using client stub, I get this error... Exception in thread "main" java.lang.Error: Unresolved compilation problems: org.apache cannot...

Hi, Unbound Classpath variable: What does that mean? How do I solve it? Many thanks..

Hello, I'm trying to send a string to a subprocesses' output stream in my java program. I'm writing the data to the stream and then trying to flush the stream. This, however , isn't actually sending anything to the subprocess (a python program) and the data only actually gets sent to the outputstream when I close the stream. I'm wanting to...

Hi guys, what I'm I have is a jtable with boolean variables in the first column and text in the next two (checkboxes). I want my tableChanged method to make it so when I check one of the checkboxes then it would change whether that third column is editable or not. I have made a short array that would hold values of either 0 or 1, basically...

Hi, I'm working on a mini content management system and need help with dealing with special characters. The input are taken from html form which are then stored into a varchar column in oracle database. When i retrieve the data, some of the special characters have been changed to ??? and also

Hi Is there a way to copy the stack trace in a string, which is obtained via printStackTrace function of Exception object. Essentially I want to log the stack trace in case of any exception in a log file. thanks, Naresh

Hi, Is there any way that I can scroll a canvas - i.e. if there are too many items on the canvas you can still access by pressing down. I know Form does this (apparently) but I need to do it using a canvas!. Maybe I can attach my Canvas to a form? Ideas? Oz.

Hi. i am new to java and just starting to learn how it works. My problem now is, i need a very simple code, that shows a window, where u enter a string, and by pressing a button, it runs various checks on that strings (if it contains uppercase chars, digits, special case chars etc) and then displays a text with the results. Also, if possible a...

Does anyone know how to compare contents of two ArrayLists? I want to compare them to see if they match up. Do you have an example or could you point me in the right direction. I know I need to loop through it with an if statement a for loop somehow or both, but I am not sure how. thanks for any help you can provide-

I've been tasked with doing technical interviews at my company, and I have generally ask a range of OO, Java, and "good programming technique" concepts. However, one of my favorite exercises I give interviewees seems to trip them up all the time, and I wonder if I'm being too much of a hardass... it seems easy enough to ME, but these guys,...

i have 2 long numbers eg xl=12345678 xr=87654321 i want to merge these 2 nos. into a single long number i have to do this in java.. any help would be great..thanks a lot:)

Hi, For Login authentication. i create JSP Form. login.jsp(webapps/loginsystem/login.jsp) <form method="POST" action ="http://localhost:8085/loginsystem/lo" name="login"> <font color="#FFFFFF" face="Bauhaus 93" size="4"><-- BACK</font></a></p> <div align="center">

Please Help! I found it for Solaris and Linux but for windows I didn't. Please Help! Kind regards, Dmjpro.

hi, I have converted vector to object. How can I convert Object into Vector. My code look like this, Vector column=new Vector(); column.add("one");

Hello, I might have a bad day today but I have a byte buffer holding binary numbers. Now, I want to convert this to byte buffer with hex numbers. Is there any elegant way of doing that? Some method like: byte bin2hex(byte) {} BRs, Zulik

Hai, i'm a beginner to java... just now i had tried to read and write files using java... and then i had tried to connect a database using jdbc... now i want to export the data's from a database into a text file

And Is Java as good as PHP for web development?