36,051 Topics
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| | Hi, I am very new to java.....i know only c programming language.....even dont know c++ now i am getting training in java , i am confusing with oops concepts like polymorphism,inheritence etc. and java syntaxes all can u pls post a good link thst gives good command over oops , … |
| | "ListFiles.java": Duplicate definition of class milestonemyworkspace.ListFiles, defined in H:\SDI\MileStoneMyworkspace\MileStoneMyWorkSpace\src\milestonemyworkspace\ListFiles.java and also defined in H:\SDI\MileStoneMyworkspace\MileStoneMyWorkSpace\src\milestonemyworkspace\listFiles.java. The bugs says theres a duplicate class but as you can see on the image the files look normal. I have no idea whats wrong I tried deleting the class and repasting to another class but …  |
| | hi i am still a beginner and i am very interested in learning this language . what is the best i can do? |
| | Hi Im am so far trying to get the Jlist in my gui to display all the files in my directory H:\SDI\MileStoneMyworkspace\MileStoneMyWorkSpace\users\abimar How can I do this. If you look I madde an attempt, tried to write files to object and list objects in J list. What am I doing … |
| | Hi Experts, I have a small problem in my Projects. I need to insert the registration data into two differnt database table.I am using jsp code to do that opration. Pls Tell me some way in which i can ful fill this requirment. Should i use two differnt connection,Resultset , … |
| | I have a class assignment that I am having a hard time to complete. I have started it but at ths point I am lost. Can someone help? This is what I should accomplish: 1. Create a new class called Cat that extends the PetRecord class 2. The new class … |
 | Well i am doing a very simple program that is to calculate the number of occurrance of a character in a string Hello World The character H appears 1 times The character E appaers 2 times The character L appears 3 times The character L appears 3 times The character … |
| | does anyone have an implementation of a slotted aloha scheme or know how i can implement it? i have data that i need to read in from a file about each packet that will be transmitted across the channel. any ideas? thanks. |
| | pleas help me i want acode that convert infex to prefix in java language heeeeeelp. |
| | Hi all I have a jsp page having html link in it.From that link i want to Call the Action Class skipping the Form class as i don't have to submit any data.Now that action class should populate the values to the next jsp page.How to proceed??.Help will be appreciated.Thanks … |
| | When I boot up my computer for the first few minutes it is normal. Everything looks and works just fine. After 5 minutes, the taskbar changes to the old windows gray color and my voume for my Creative Soundblaster Audigy 2 ZS doesn't work. Sigmatel volume doesn't work, no volume …  |
| | ListFile class takes care of writing the files to Jlist Basically there is a Jlist in my GUI and I want it to display the files stored in my user folder. But for some reason it doesnt work the Jlist say that there is Null file. [code = java] package … |
| | I was executing a simple core java application using JDK1.5 I wrote code and complied using javac it gave some errors that i fixed and at last it got complied successfully But when i tried to exeute it using java it gave me an error message Error in thread main.NoSuchMethodFound …  |
| | Hello Everybody, I rarely use the forums even I use the computer since 1994. I always play games online. I guess I am a quiet person or shy person OR LAZY person. Who knows. My name is: Matthew Location: Colorado Springs Education: BS in CS degree, pursuing for CS-SE (Software …  |
| | I wrote a java program, it comprised of a file for the main class and a file that is a package that consists of a class, a subclass and some methods in each. The class, subclass and all methods are public. I compiled the main class and the package on … |
 | Hi there. I'm trying to write some code to display a graph with nodes/edges on a LayeredPane that will allow the user to move the nodes around. However, I am having some problems getting my nodes to show up. Whenever I launch the application, I just get a blank window. … |
| | Hi, i've got a component that displays two JSpinners with a JOptionPane but the JSpinners are stretched across the dialog window. Does anyone know how i can format the JSpinners so they're smaller? Here's some of the code [code] import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.text.*; public class TComponent … |
| | I am creating a DefaultSingleSelectionModel subclass. Is there anyway to discover what component is the owner of the model from inside the model? |
| | Hello i have an important homework assignment which is due up on mon 26th and i need a competent java programmer with netbeans expirence. Problem is as follows: It's a small project and i have basically designed all the forms and buttons needed etc. Now i need someone to link … |
| | [COLOR=#000000]Hi ! I have a problem in connecting JSP pages with My SQL database using JDBC connector. I m using:[/COLOR] [COLOR=#000000] [/COLOR] [LIST] [*][COLOR=#000000]For TOMCAT -- apache-tomcat-5.5.23[/COLOR] [*][COLOR=#000000]For JRE -- Java EE 5 SDK[/COLOR] [*][COLOR=#000000]For database -- MySQL 5.0.37[/COLOR] [*][COLOR=#000000]For JDBC -- mysql-connector-java-3.0.17[/COLOR][/LIST][COLOR=#000000] [/COLOR] [COLOR=#000000]JSP pages other than database working … |
| | I am trying to write the tic tac toa game using java.I have problems & in need of help....HELP |
| | I've finished my assignment (messily) and it works well enough in the uni linux computers - but I can't make file input work at home under XP. I wouldn't have thought that the windows/linux change would make a difference with the JRE... (But then I'm new to this "com-puuuu-tah" stuff) … |
| | [B]hi frinds this is ram, the following program is my problem, i don't know how to do this program plz help me [/B] create a GUI solution that displays a collection of some sort. The collection must minimally be 4 x 4 (four or more categories and then four or … |
| | Hi I am having trouble creating a system to log in to a system. If you look at a picture its like this. User selects thier user name from a dropdown box, and then select thier Picture(instead of typing in a password to login. There can I get more info … |
| | Hi Friends i am a final year btech student and now got stuck with my acadamic project.... I Am Doing A Database Project For That I Want To Get Datasource Names In A Computer .. I Am Using Jdbc Odbc Connector Class Please Say How To Get The Dsn List … |
| | hi friends did any one kno how to get data source names in a system using j2ee if kno please forward me the code please .... thanks  |
 | Hi there folks. I am a wannabe in Java. Can you guys help in recommending books (e-books preferably) I can get to jumpstart me. I have got quite an experience in other languages like vb.net and c# so where or how do I start? Thanks for the help! |
| | Hi, can some one please help me run this code. i have another class named Course, that complied without error. Now in this code i am trying to take user inputs to find resulting gpa in a course. the following code does not compile, please help. [code] import java.util.*; import … |
| | Hi Friends I Am Doing A Database Project For That I Want To Get Datasource Names In A Computer .. I Am Using Jdbc Odbc Connector Class Please Say How To Get The Dsn List If Any One Kno Please Forward Me The Code Thax In Advance ... Hoping Lot... |
| | Sory guys i need help, i installed java in my computer but i cant run any program because its telling me that "error" invalidpath, i tryied to change the directory but it still tells me that invalid path when i compile... please help guys thanx in advance. |
| | ehat is the differencde between error,checked exception and unchecked exception?when occurs at what time?compile time or runtime?which of them can be handled and what not handled?example? |
| | Hey Guys... Can anyone help me get a java code of OREGON TRAIL PLEASE!!!PLEASE |
| | hello, everybody.... i am new to java programming........so my question may be childish i want to ask that.....in java all methods and variables are public... by default(opposite to c++).so why we are writing public static void main(String args[]).main method can be accesed from anywhere even if i dont write public … |
| | hi i m making a website in which the user has to enter data on current or next days not of previous days. but if the user changes the date of their system,they r able to enter data of previous day also. is there any way in which i can … |
| | [B]how can I extract all the values of one field from the database table (ex : all the names from the field NAME) and put them in a combo box in run time in the dynamically generated page…[/B] [B] [/B] [B]and secondly, if all the values are available in the … |
| | hi everyone i am new to java and currently working on a project in jsp and ejb. everytime i try to run the program i encounter an error that package javax.ejb does not exist. i have jdk1.3 and j2sdkee 1.3 installed and have added j2ee.jar present in lib of j2sdkee … |
| | i wrote a Chat program and my drop down menu doesnt appear in the front...i used toolkit and Flow layouts to drow the GUI.. need help badly thanks!!!!!!! |
| | How would I go about detecting focus lost on a particular tab? Understanding that each tab is in essence a JPanel, I decided to check to for the focuslost event on that panel but I get nothing. What am I doing wrong? |
| | hey not sure if this is the right forum but i was hoping someone might be able to help me! im trying to send a text file to a web host from a local host and think it should be done using ftp scripting...........but not sure how or where to …  |
| | hi guys im an IT student an i have a very important assignment to return in 2 days time and im stuck with it i dnt know what to do. the assignment is as follows. Write a complete class definition in java for the following.your answer must include at least … |
| | Hi all, I have a simple problem but a major 1 for me now... i need to pass the selected value of radio button from 1 jsp to another jsp i.e when user selects a radio button option and then clicks on the submit button then the selected value should … |
| | Hi All, I have been working on this all night. I have to convert degrees to celcius and vice versa. I keep having 2 errors. "possible loss of precision". I am new to java, but also I think I am having serious mental issues at this point. Here is my … |
| | Hello every one i am working on a project ,in that i need to send a mail from client to Admin or client to client .I have seen some samples in net but they are not working main problem is javax.mail. *; is not importing Can any one help me … |
| | Okay I need to find a way to mix up a word (a String) recursively. I have just been trying some stuff: [code] import java.util.Random; public class JumbleRecursive { public static void main(String args[ ]) { String word = "test"; System.out.println(jumbleRecursive(word)); } public static String jumbleRecursive(String word) { String a … |
| | Short version of my question: __________________________________________ How can I detect a keypress in Java without using a GUI? Long Version: __________________________________________ I am writing a program that users System.out and System.in for its input and output. As you are no doubt familiar, if you are in the middle of typing … |
 | Hi all, I'm new to J2EE programming. I have a simple doubt . I have already created a lookup method for EJB bean in Session bean . My question is how to call a method of an [B]ENTITY[/B] bean (say insertRow) from [B]SESSION[/B] bean method(Say invoke_insertRow) . Please provide me … |
| | I've been trying to install JOGL but can't seem to get it to work. Can anyone give me a simple expanation of how to install it please. |
| | why am i getting this error PLZZZ HELP!!! Exception in thread "main" java.lang.NoClassDefFoundError: config/java i'm just started learning Java please help me out |
| | Hi i am having problems with my code and someone had a similar problem and i used the solution given but it did not work out for me. here is the error msg: Unable to create MIDlet ConcentKemMIDlet.java java.lang.ClassNotFoundException: ConcentKemMIDlet/java at com.sun.midp.midlet.MIDletState.createMIDlet(+29) at com.sun.midp.midlet.Selector.run(+22) please can someone help me, and … |
| | hi help me out. i get error msg when i try to "Test Driver Connection" from WebLogic 8.1 with SQL Server 2000. do i set any privileges from SQL Server for WebLogic 8.1 server to eastablish connection. Thanks in advance Deborah D |
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