158 Topics
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| | I need opinions or advice on an application that I want to program in Java to learn programming logic through short questions.  |
| | Need help with JTable header group : Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.table.JTableHeader cannot be cast to id.co.aal.common.GroupableTableHeader this is the part of table drawing ..... if(tabledraw) { tabledraw=false; for (int k = 0; k < m_data.getColumnCount(); k++) { TableCellRenderer renderer; if (k==Kehadirantable.COL_ALOKASI) renderer = new CheckCellRenderer(); else { DefaultTableCellRenderer … |
 | H! I am writing a java proram in which I need to generate and read barcodes to and from .PNG images. I used barcode4j-2.jar library to generate barcodes and write them to PNG image. I did this successfully. But I faced an error during reading that generated barcode from the … |
 | I am using Netbean IDE 8.1 to build the website. I build a very simple website with simple Javascript function, window.alert(). Upon my testing, I put the button triggered function in the javascript but the function is not triggering. If I put the function under the HTML, it does triggered …  |
| | Hi, I'm using NetBeans with Java. I have create a JFrame with some checkboxes and a button to open browser go to the specific URL based on the checkboxes' values. But how do I auto-login/auto fill the username and password textbox then trigger the login button? Please kindly advise. Thanks. |
| | I'm working on assignment that requires me to generate and store 50 random PPS Numbers in an array but I'm not sure as to how to go about doing this. Keep in mind that I'm not asking anyone to do this assignment for me, this is just the part I …  |
| | hi, I want to create an application in netbeans which send input and retrieve result from a website. I googled this... Some say we have to use jsoup, some says we have to use selenium , some says ajax and some says jquery. I am totally confused. i read so … |
| | Hello to all! I made a small project using Netbeans8. I named my project smallCalcApp. And then i add a new JFrame File in my project and in that file I handled events of components which i put on form. When I run that file , it ran successfully and …  |
| | Can any one send me the config setting for jdbc and mysql using apache server setting in netbean. i wanna use jsp with xampp and jdbc |
| | I'm working on a programme that's supposed to accept input of doubles from an array however it's not quite working out for me. It takes in Integers alright but not the double values. Could someone point me in the right direction Any help is much appreciated double array[] = new …  |
| | I am currently working on a program that asks a student to answer 5 simple maths questions after each question it will state whether the answer is right or not. which it will out put a grade and grade average percentage. Currently I'm stuck on the if statement where it … |
| | Sorry for the misleading question guys, I know how to generate two random numbers but I want to use them in One JOptionPane input Dialogbox so the user can add the two numbers. Below is my code of what I have done so far I know it's not a lot … |
| | I want to output the annual salary for each employee individually but I'm not sure how. The way it is now it just pops up as one large box. Any help is much appreciated :) public static void main(String[] args) { // TODO code application logic here String increase, Salary, …  |
| | My code has me stumped, My method is right...I think but the output begs to differ. Basically this code is supposed to convert seconds to minutes but the output is somewhat off..here's what I have don so far. String input = JOptionPane.showInputDialog(null, "Enter a value for seconds (positive whole number): …  |
 | This is the message it gave me :( Pls help Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.ImageIcon.<init>(ImageIcon.java:205) at PPMSPrototype.initComponents(PPMSPrototype.java:841) at PPMSPrototype.<init>(PPMSPrototype.java:11) at PPMSPrototype$26.run(PPMSPrototype.java:1333) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:694) at java.awt.EventQueue$3.run(EventQueue.java:692) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo main.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:703) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre ad.java:242) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread. java:161) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre ad.java:150) …  |
| | I want to run a java application which calls a web service. Everything works fine from the netbeans ide, but fails when I run the .jar generated. What could be the problem? How can I check the content type that the error is pointing at? The error says: **SEVERE: SAAJ0537: … |
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| | I'm working on a Database assigment but I'm kind of stuck. It seems to be the Double value that's causing the issue because when I use the Varchar data type I can create my table. Is there any way I can use Double without using Varchar. Any help is much …  |
| | 1. A company wants to transmit data over the telephone. All of the data are transmitted as four-digit integers. The company has asked you to write a program that encrypts the data so that it can be transmitted more securely. Your program should read a four-digit integer and encrypt it …  |
| | Is it possible to call repaint() inside the main()?I have tried the code below.But its not working public mypanel() { initComponents(); repaint(100,150,40,40); } protected void paintComponent(final Graphics g) { final Graphics2D g2 = (Graphics2D)jLabel2.getGraphics(); g2.drawRect(100,150,40,40); } //above code doesnt provide any output private void formMouseClicked(java.awt.event.MouseEvent evt) { repaint(100,150,40,40) } this …  |
| | Hi, I am implement a plugin project in eclipse in java language. I have a parse which is in s simple txt file. Below is the txt for the parser. id=app1 [String] #type=app [String] mainView=top name=First App [String] children: size=1 === child[0] === class=View id=top [String] #type=View [String] #line=8 [Integer] … |
| | Hi I just started learning on making gui on Java. I watched some youtube videos and i realise one of the them uses DefaultTableModel. At first i thought it was to allow access to the function of the table but i realise i can directly write and get value from … |
 | Hello, so I am trying to get a Netbeans application on the web, specifically in this location here: http://hellojar.elementfx.com/FunGame/index.html As you can see it loads, but then crashes as it cannot find "main". (my attempt at trying to find the right run location of my Main) Here is my HTML … |
| | I have a c++ file in xcode that I want to import to netbeans the problem is the c++ file is lacking some files which netbeans requires in order to open that up in netbeans(e.g makefile) How do I do that?  |
| | Hi Guys , I know this looks like quite funny question during the holiday season , but i developed small netbeans application called helloworld , which is kind of pressing button and displaying helloworld , i pressbuild the application and press run , but my application is not runnig even … |
| | Hello Guys , I am new to NetBeans , any idea what is the meaning of these icons ? Thanks |
| | Hello Guys , When I checkout code from svn i get this error message any idea to fix this issue ? I use netbeans 7.3.1 , plugin subversion.  |
| | i have downloaded a number of web page templates and i want to use one or more of them in netbeans. ho do i go about this. do i have to replace the already existing index.html file in my project with the one i downloaded, or where do i copy/import …  |
 | I just created an empty HTML5 project and could not run it through the new Chrome netbeans Connector feature. I have added the netbeans connector extension to my chrome browser, but I keep getting this warning "Could not access Url through external browser. Check browser configuration." I have the latest …  |
| | My version of Netbeans 7.3.1 freezes at startup. I've already deleted the cache to no avail. Cannot say I can make a lot of sense of what I read on Google. Should I use another ide? |
 | Hi.. I want to seek help about database in SQL and Jtable in Netbeans. In our sales inventory system, we have these tables in database namely 'stockmasterlist' and 'pricemasterlist'. They are relational since they have in common with regards to their 'ProductNumber'. Now, since they are of different tables but … |
| | 01. I'm working on a school java project using Netbeans IDE. 02. I need to display IReport in a JPanel Placed inside a JFrame with a button Click. 03. To Create the IReport I used ReportView Class downloaded from the Internet & in the button click Event I have following … |
| | I'm suffering from a complete brainfreeze here; maybe some NetBeans user can un-block me without making me look like a complete idiot? Thanks. I usually use Eclipse, but for this particular project it has to be NetBeans. I have two projects defined. One is the main project with packages - … |
| | Hi there, I'm just starting with Java and Desktop programming but I have some doubts, for example: You are going to write a new application, you go there, draw your ER for your database, UML, etc. My problems is when I need to integrate the interface with the program logic, … |
| | Just wondering how do i get all the nessecary files for my project on netbeans because, when i use the add existing item, i tend to forget where i got it from and have trouble organizing it. Is there a way to find where the file is located at? |
 | After I clicked the 'Run' button in Netbeans, it will compile and run and then it will stop at this point : [Click Here](http://i.imgur.com/4O8vY2d.png) I will have to press any key on the keyboard then it will display the text, but it doesn't allow the user to enter any form …  |
| | I have written a code which used to send data that was saved in my mysql database, through ethernet using UDP protocol, everything worked fine until i sent fewer data(25 rows), when i started sending data in huge amount(100 rows) it used to display Java Result: -1073740791 and would stop … |
 | Hello generous java coders!I am really in a desperate situation now. I have a working gui code here: import java.awt.event.*; import java.awt.*; import javax.swing.*; public class CountdownTimer extends JFrame { JLabel promptLabel, timerLabel; int counter; JTextField tf; JButton button; Timer timer; public CountdownTimer() { setLayout(new GridLayout(2, 2, 5, 5)); promptLabel …  |
 | Hi Guys, I am creating a system to work on a database adding updating etc. And the combo boxes are giving me trouble. The process is as follows. The user searches for a business by location once entered all business for that area are then displayed name address owner etc. … |
| | Can i have some sample projects in java using netbeans? With source code of course because i need it for our project. I just need it for a guide bcoz i'm not exactly sure where to start. Thankx!!!  |
 | package wow; import java.io.PrintStream; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.Scanner; public class Wow { String question; String answer; int correct=0, number=15; Wow[] quizBank = new Wow[15]; List<Wow> quizList = Arrays.asList(quizBank); public static void main(String[] args) { Wow bank = new Wow(); bank.bankList(); bank.askQuestion(); } //end main public void …  |
| | >equal button wont work =( /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package calculator; /** * * @author Gatongay Famiglia */ public class NewJFrame extends javax.swing.JFrame { double plusminus; double firstDouble; double secondDouble; double totalDouble; int plusClick; int … |
 | Dear Daniweb Members, First of all sorry my english writing. I installed JavaJDK 7u13 with NetBeans 7.2.1 and db-derby-10.5.3.0-bin.zip on a fresh OS. Then i set the environment variables according to their relative paths as seen below. By using ij the test database and the test table created, records inserted … |
| | public class JavaApplication1 { public static void main(String[] args) { for (int i = 5 < = 100; 1 + = 5){ System.out.print(i); if (i <100){ System.out.print(","); } } } } |
 | I was working on a project on netbeans and came across a problem with netbeans. The netbeans was showing the error repeatedly as "duplicate class". eventhough there is no duplicate class in the project. After so much frustation , i realized that this is netbeans bug. After doing some search … |
| | I am trying to add a try catch block with switches to my program in NetBeans, and it is not excepting any of my already declared variables?? Here is my original code, without any validation: package annual; import java.util.*; import java.lang.*; public class Annual { public static void main(String[] args) … |
| | Hi everyone, I've been trying to turn one of my programs into an executable application, but every time I click the jar file or open it using the command prompt nothing happens. I was wondering if I shouldn't be using "System.out.println" and Scanners to take input/display output. I am using … |
| | basically my program runs like this 1. open up configure GUI 2. get congiguration 3. close configure GUI 4. open up main GUI now when I am testing in netbeans, this works perfectly however, as soon as I compile and try to run the jar file outside of netbeans the … |
| | Hi, I've used keylisteners multiple times, but I am having trouble with this situation. I want the keylistener to recognize a series of characters. For example, if 'e' is typed, I want the program to listen for 'l', then 'e', etc. (spelling "elephant", if you wanted to know). It recognizes … |
| | compare and contrast the latest versions of eclispe, netbeans and jgrasp integrated development environments. |
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