36,051 Topics
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 | Hi members,I would like to share knowlege in Java with you. I have a problem which i request a solution for. I want to design a GUI in java that displays four roads each having traffic lights and these traffic lights have four colours(green, orange, and Red). So I want … |
 | Please can any body give me tutorial source on java using netbeans. i want to learn java programming with netbean |
| | Hi, one of my labs were doing is a data gatherer, the user enters their first middle and last name all at once with a space between each. then enters there birth month day and year all at once with space between each. Then it outputs them in in a … |
| | Hi. I am trying to run an EJB through bea weblogic 8.1 server. I am trying to create a Stateless Session bean. I have created two jars and when I try to do a hot deployment, I get a server error. please see the error description below: [COLOR="Red"]Exception:weblogic.management.ApplicationException: prepare failed … |
| | I am doing a program for my computer programming class and it starts out as. I use Bluej for programs too import TerminalIO.KeyboardReader; when i compile it, it says package TerminalIo does not exisat. Does anybody know what is wrong with this i need it fixed soon. Below is a … |
| | Hi, everyone. Plz. Answer. this is very urgent Write a Client/Server Program using DatagramPacket and DatagramSocket which finds the square of a number sent by the client. Avinash Rooge |
| | I have see other language to work like that! What i mean is there is a class or something inside the code with the copyrights. When the copyrights change to program stop working. I would like to know how i can do that? |
| | How to find the wifi network interface name in Java.NetworkInterface class does not specify any method to find this. Thanks |
| | I am not understanding the question below at all can someone please guide me in the right direction. I do understand what a Boolean is but i am unclear on how to change the code as directed below. Thank you for your time. [CODE] Change the java code below so … |
| | Hi all, ive got a bit of an annoying problem regarding JUnit 4.5. I've created a bunch of unit tests which work properly when I right click the class and press 'Test' (in Netbeans). However, when I right click the whole project and press 'Test', i get a ClassNotFoundException. I … |
| | Well, started my new Computer Science class, and already having trouble. Well, firstly I needed JDK, so Installed the JDK-6u23-windowsx64.exe. After that, I needed to install Textpad, which my teacher said all students will use for assignments. Here's the problem, after installing textpad, I had to go - Configure - … |
| | Hi 4 all.. i'm new in this fourm,and i need help plllllz to do this program in java,i realy be sooo confused!! i was absent in this lecture for (Arrays),i'm trying 2 do it but still i'm not get tha idea!! pllllllllllllz can eny ony explain 4 me the Q?? …  |
| | I don't know why/how to fix this...It's saying i have a NoSuchElement exception on line n=f.nextLine(); [CODE]while(i<listFlights.length){ i++; n=f.nextLine(); d=f.nextLine(); h=f.nextInt(); m=f.nextInt(); Time one=new Time(h, m); listFlights[i]=new Flight(n, d, one); }[/CODE] |
| | Hello, The following program has a JButton and a JLabel in a JFrame. I am using Flow Layout. How do I get the JLabel to show directly below the JButton before clicking the JButton and after clicking the JButton? Thank you! [CODE]import java.awt.event.*; import javax.swing.*; import java.awt.*; public class checks … |
| | Hello, I have a program where if I click anywhere in a JFrame, a ball appears(using fillOval).If I happen to click on the ball once it has appeared, how do I make it disappear? Thank you! |
| | any one can help me to mean how i create a bitmap because the examples in net is very difficult and i can't mean any thing of this (sample examples plz ) |
| | /*Here is my code as you can see the in front of rice set the four RadioButton in different Location? i have been tired but i can't solve this problem .Help me Please if u can.*/ import java.awt.*; import java.awt.event.*; import javax.swing.*; class Fnf{ static Box createBox(String[] sa) { Box … |
| | Im trying to make an employee database where the user can add, delete, search for, view all, edit an employee, and quit. After the user clicks the add or delete button, the program is supposed to allow them to input the names and other things nd when they press enter … |
| | How can I set size of tab in a jTabbedpane? plz help |
| | how can I add a string to jTextPane at cursor position? Advanced Thanks... |
| | Hi, I am new to Java Swing. I am trying to develop a GUI for my tool, which consist of a JTextPane which is enclosed in a JScrollPane and to meet my requirement I am using a JTabbedPane for holding this textpanes. In the right side of the GUI I … |
| | Hello, My final year project is to develop a java application which should get the two java programs as input and tell us if the programs are copied or not. The copiers should not be able to cheat if they just change the variable names. The copiers should not be …  |
| | Hi Guys, Please find below a copy of my code for the issue that I'm having. So, before you have a look at the code and inevitably laugh at something silly that I've done (because I have a feeling that it would be), I should explain what my problem is. … |
| | I'm trying to write a program that switches the "x" and "o" in a String, only using the replace method repeatedly. At the end of the day, the program should turn 'xxxooo' into 'oooxxx'. I understand why this isn't working, but I'm just completely out of ideas as to how … |
| | Is there any way to combine two or more .exe files in one .exe files?????? Please help....! |
| | Dear all I need your guidlines with this project because I dodnt done nothin yet an i am terrified to admit that I am going to deliver this on Wednesday and in the midtime I have a final in another course. What I didn till now is the UML for … |
| | Hi, anyone here who has a sourcecode in Java for a familytree? Im learning java, and whant to study how a familytree program is built. Any tutorial or sourcecode availible? :) |
| | [url]http://img200.imageshack.us/i/screenshot20110111at115.png/[/url] Thanks in advance fellow geeks! |
| | What is a better way to write the code, [CODE] public void showFeelings(int howManyGoals) { switch (howManyGoals) { case 0: System.out.println("Oh dear, not very good"); break; case 1: System.out.println("Oh dear, not very good"); break; case 2: System.out.println("Oh dear, not very good"); break; case 3: System.out.println("Ive seen donkeys shoot better"); break; … |
| | I have a program with 2 panels, each with it's own class. LeftPanel and RightPanel. Whenever I click a button that does some calculations (like calculating total assets amount) in one of the panels, it doesn't update that info for the other panel. For example....I have this seperate class that … |
| | [CODE] private JButton[] buttons; private static final Character firstChar = 'A'; private static final Character lastChar = 'D'; /** Creates a new instance of ButtonPanel */ public ButtonPanel() { buttons = new JButton[4]; setLayout(new GridLayout(2,2)); Character label = firstChar; for (JButton b: buttons) { b = new JButton("" + label); … |
| | Hi, i'm trying to copy all txt files from a directory into one file to another directory. But i have the following error: "FileStreamsTest: java.io.FileNotFoundException: . (Accès refused)"" My txt files are located in the project folder of NetBeans. here is my code: [CODE]package FileStreamTest; import java.io.*; class FileStreamsTest { …  |
| | This is my sample application which provides result as follows: [CODE]Array Values : arr[0][0] :6 arr[0][1] :0 arr[0][2] :0 arr[1][0] :0 arr[1][1] :0 arr[1][2] :0[/CODE] am using the jQuery Highcharts: [CODE]chart = new Highcharts.Chart({ chart: { renderTo: 'container', defaultSeriesType: 'column' }, title: { text: document.chart.chartTitle.value }, series: [{ name: 'USA', … |
| | Hey again, I'm having another problem unfortunately. We were asked to create a tree that has binary tree properties as well as max heap property. (take A(7),C(8) and B(3) ; the tree should be so that the it should alphabetically represent a binary tree and numerically represent a heap) I … |
| | Hi, I'm relatively new to JSP (J2EE). While I was reading I encountered the following JSP declarations. (<%!>) now is my question how does the servlet save the new value, because I thought that the container creates a new thread for every request to access the servlet. So by doing … |
| | How do I put the jar file in eclipse inside the workspace folder so it does not have to be re linked or re path changed when I use it in another computer. Currently, my problem is that even when I keep the JDBC MYSQL connector (jar) file in the … |
| | I have the following problem and I dont undesratnd how to use arralists to implement. I have a customer class which I want to hold some primitive data types as name , id , address etc. To implement this using arraylists I must declare it as below? [CODE]Arraylist Customer =new … |
| | Hi guys, I've been looking into reflection and was wondering if anyone had any good tutorials or a good use for it. I understand how it works but can't think of an example of when it would actually be used. A website with a task that needs reflection to solve … |
| | I am new to JSON... I have been told to use it with XStream in my project.. I searched on net... But, I did not get any satisfactory information.... So, can anyone please tell in simple language what is JSON n basically why is it used? |
 | I have a problem with this code and I do not know what is causing it. [CODE]// The "ArrowKeys" class. import java.applet.*; import java.awt.*; import java.awt.event.*; public class ArrowKeys2 extends Applet implements KeyListener, Runnable { int x = 50, dx, y = 50, dy, a = 0, score, total, locx, … |
| | We are trying to load a flash file in a browser from local machine its loading only in Internet Explorer (IE) but not in other browsers. Please suggest me some solution. [code=html]<body> <object id="flowplayer" width="300" height="200" data="http://releases.flowplayer.org/swf/flowplayer-3.2.5.swf" type="application/x-shockwave-flash"> <param name="movie" value="E:/SkillMate1/video/zelda.swf" /> <param name="allowfullscreen" value="true" /> <param name="flashvars" value='config={"clip":"E:/SkillMate1/video/zelda.swf"}' /> … |
| | Hello I want to develop a program in which I query a string to any search websites like Yahoo,Bing etc.. and get search results(only the websites) to display in a list box.So is there any way to get the search results ? Thanks From Satish |
| | Hello All, I have confusion in command Class. Its constructor has 3 parameters. First 2 parameters I can understand. but [CODE]Command.Screen[/CODE] and priority parameter I could not understand. I tried to Google also, and refer different kind of ebooks, but still i cant understand. So please help me. |
| | Hello friends, I am working on online book store project using Java and Servlets. I am struck at desgining part. The scenario is simple anyone can come and search books but only registered customers can buy them. 1. Is it good to create multiple database connections or single connection? If … |
| | I have a label,4 radio button.I have retrieved data from sql.I need to display the retrieved question in label and its 4 option in each of radio button.I got it working to display one question.my trouble is in button click.when next button is clicked question should change...any more ideas is … |
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| | Dear All First of all I wish you a very happy new year. I have been trying to understand the depreciation matters. As you can see in the codes below, There are 3 handleEvent methods used as pressbutton action , radio button selection action and dropdown list selection action. Now … |
| | I am working for online examination project. my work is to generate random number without repetition. i tried and i am getting numbers to be repeated sometime.... I need to know how to check the repetition in the generated number. random r=new random(); for(i=0;i<10;i++) { int j=r.nextint(10); System.out.println(j); } |
| | HI, I have now for more than 24 hours tried to figure out how I return the index number of the second smallest integer in an unsorted array. Some how, I do not get the index number returned, can any one see what I´m missing? As the program runs now, … |
| | I have about 500 items in a database (MS SQL server 2008). These individual items have some other properties stored as tables. I am trying to display these items as html links on either a JSP/HTML page. I have a page with alphabets A....Z which are html links in themselves. … |
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