32,204 Topics
 | |
| | Java implements pass by reference right? So when I do cons("item", stack) with the following code I should print out --> itemabcd. But that isn't the case, why? String stack = "abcd"; cons("item",stack); System.out.println(stack); // public void cons(String item, String stack) { stack = item + stack; }  |
| | Hi all, So i basically created a database with an arraylsit. All the data is stored in the arraylist and is added by a stringLine. [B][U]All this is shown in the code[/U][/B] My Database is an Insurance Database. Well basically i'm finding it hard to find out how to actually … |
| | please how do i create a login page using gui in java?And also how do i make the login page move to the next java page when the password is correct?  |
| | Hi everyone, I have quite a problem. I have a text pane and three menu items which are cut copy and paste. In my textpane i have some text and an embedded icon. when i select all the contents of the textpane and click cut all the contents of the … |
| | Hey, I've been going insane with a question I've been doing all day. Creating an application that prompts a user to enter a date. I have to use arrays to store the number of days in each month i.e 31 for January, 28 for February etc.. I have created a … |
 | hello! i have to create Jtable with two columns one is for data(string)and another one is for animated gif file ... how can i write a gif and data in two columns respectively.... please give any sample code snippet... |
| | Hi guys! Can't figure out why this is not working: [CODE]<div id = "calendar"> <script language="javascript"> document.write(TODAY); </script> </div>[/CODE] Here is the CSS: [CODE]#calendar { width: 956px; height: 15px; float: right; color: #ffffff; background-color: #036779; padding-top: 5px; padding-bottom: 5px; padding-left: 2px; padding-right: 2px; text-align: right; }[/CODE] The text doesn't show. … |
| | I am trying to find memory leaks in my application. I added -Xrunhprof arguments to the java arguments. When I try to restart the service it times out. This is the new argument that I added: -Xrunhprof:cpu=samples,file=java.hprof.txt ******************************** java.home=C:/JRun4/jre java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false -XX:MaxPermSize=128m -DJINTEGRA_NATIVE_MODE -DJINTEGRA_PREFETCH_ENUMS -Dcoldfusion.rootDir={application.home}/ -Xdebug -Xrunjdwp:transport=dt_socket,server=y,address=28999,suspend=n -Xrunhprof:cpu=samples,file=/temp/java.hprof.log ******************************** … |
| | I'm using Eclipse and even though I've done more challenging things than this I keep getting stuck no matter how hard I hammer away at it. This is a package, so the end of the first part (Driver Class?) is really what I'm having trouble with. Comments are included in … |
 | Hello everyone... I wanna develop a Java Web Applet that will allow me to check a PC's HW configuration (cpu, HDD, and other hardware information), but I don't know what libraries to use, or where to start looking. Anyone can give me a heads up? |
 | Hello everyone. I am University of Bath Computer Information Systems student and i have to submit a java calculator. As far as i am quite new to java i would like to kindly ask you for some help with it. Here is my task: Write a program that takes as … |
| | I have written a working calculator program but it will not work out negative inputs. For example, 3+2 = 5.0, but, -2+5 = Wrong type of expression (error message). The user inputs the calculation which is called "expression". I have two stacks, one for operators and one for operands and … |
 | I made a program that edits the contents of a XML file. It works fine, but when there are newline characters between the nodes, the program doesn't handle them correctly. It looks like it's handling the newline as if it's a node as well. The problem is that put all … |
| | The code I'm using to change XML content isn't working... Does anyone have any idea what I'm doig wrong: [CODE]package domtest; /* public class Main { public static void main(String args[]) throws Exception { DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); DOMBuilder domBuilder = new DOMBuilder(); Document jdomDoc = domBuilder.build(builder.parse(new File("src/home/projects/misc/Test.xml"))); Iterator iter … |
| | |
| | Well I am creating a Projects for Database Analysis. I require a Dynamic DashBoard which will change according to changes in database.This Application is Web base Application.I cant think any more and require your help to create dashboard(meter).First I tried to create dashboard with javafx but as It cant run … |
| | hi i don't have my book with me and i can't remember what is the code for let's say, the console asks "please enter your name" what would be the code for wanting to take what they type and assign a value like name = "whatever they type" [code=java] system.out.println("Please … |
| | need this to change to random colors every .8 secs. compiles ok, but not getting wanted results. cant figure out where i am wrong? i get the applet viewer window with a black square but no color change. Here is the .html file <applet code = ColorChange .class width = … |
| | I want to parse a string into something like an array: [url]ftp://user:pass@host:portpath[/url] [url]ftp://anon:1234@111.222.333.444:9999/path1/path2/[/url] I read the java docs about using Pattern and Matcher but I keep getting an "IllegalStateException: No match found" error. [CODE=java] import java.util.regex.Matcher; import java.util.regex.Pattern; public class test { public static void main(String[] args) { String s … |
| | I wrote this code to load the image on mouse click...but it is not displaying as soon as i click the mouse...i need to resize the jframe to make that visible what is the problem with this.......please anybody ans for this....thank u in advance... |
| | I had a couple of posts on getting this thing to work. I finally got a small test program working, but now this, the actuall program, doesn't. I don't understand the error either(Will include it at the end of this post). Here is my code, with the line throwing an … |
| | Hello! I try to follow steps mentioned here ([url]http://www.speechforge.org/projects/cairo/install.html[/url]). The first thing is about JMF. I downloaded jmr-2_1_1e-linux-i586.bin (the other thing is that I've got 64 bit computer). I found [url]http://www.luniks.net/luniksnet/html/java/jtvd/doc/jmf.html[/url] . I executed bin file in /usr/lib as it is written in this mini-howto. Then I edited /home/mainaccount/.bash_profile file … |
| | Hi I'm doing my Fourth Year B.E. project under the internship of MindTree! Now they have only told us what to do , but haven't guide much! Now, we have been told to develop an search application similar to Google Desktop one, only lighter version of it! This is how … |
| | i have a school assignment where I need to create a countdown timer to attach to a scoreboard i made. the code that is attached is a program i found that is a stopwatch and will count up. im looking to get the timer count down from 2 minutes and … |
| | Hello, Can anyone help me solve the error in this program?? I get the following error: [COLOR="Red"] Exception in thread "main" java.lang.NumberFormatException: For input string: "" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at converter.main(basic_convert.java:20)[/COLOR] The whole program runs properly. The error come after asking if I want … |
| | Hello All, I am working on a bluetooth based project and I need to identify model of mobile device. I know we can get the manufacturer of device from first three bytes of bluetooth address. But I am not getting the concept by which model of that device such as … |
| | If any one have questions for scjp 6.0 please send, Thankyou |
| | Help making arithmetic exception getting the square root |
 | how can i create a magic square program using jcreator?? pls help me.. |
| | Hi, I've been working on this project off and on. I am very close to completing in. What it is is a program that calculates temperature from fahrenheit - centigrade - Kelvin. Please feel free to help. Here's my code sorry for the length of it: [CODE]//-- Shaun D. -- … |
The End.