3,978 Topics
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 | [ATTACH=RIGHT]18505[/ATTACH]The HP Elitebook 8440w should be called [I]work-mobile[/I] not workstation. The word ‘workstation’ implies you are stationary at a big, powerful computer. Not if HP has something to say about it. They've successfully taken the workstation concept and combined it with what a mobile user expects from a notebook. This … |
| | My whole program works completely fine ~400 lines of code including comments, but I have this at the bottom of my code. This is the last bit of code in my java program... Is this okay to have, if not what should I do instead. [CODE] private static void End() …  |
| | I'm trying to write up a little "game" that consists of a U.F.O. that flies in all directions (based on buttons) and explodes when it hits the bottom of the screen. I have 4 classes, 2 of which I'm not allowed to edit. They are: The display window [CODE] import … |
| | Jess is expert system language like clips but based off java instead of c This is my code [CODE](import javax.swing.*) (import java.awt.*) (import java.awt.event.*) (set-reset-globals FALSE) (defglobal ?*crlf* = " ") ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Question and answer templates (deftemplate question (slot text) (slot type) (multislot valid) (slot ident)) (deftemplate answer (slot … |
| | Hi, first post on the site and I hope I'll explain this properly: I'm tasked with creating a TicTacToe Applet using a JButton array. What I can't figure out is the problem I'm having with either setText or getSource (last bit of code). Can someone point out what I've done … |
 | Ok, so first off this code is insanely messy and very very long. So if anyone has any ideas on how I can reduce all the variables and make it just run nicer that would be nice. I have been trying many different types of layouts and saving forms and … |
| | Hi I have to develop an algorithm visualization tool for my project. I divided my tool into these 4 modules below: [QUOTE]The tool will be divided into 4 modules: -The GUI -The Visualisation module -The Calculate module -The Compile module The GUI the GUI class is the class that forms …  |
| | after compiling it this errors came out, what do u think is the possible solution for this? thanks! Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 9 at accountinfo.<init>(Main.java:73) at accountinfo.main(Main.java:142) [CODE] import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; class accountinfo implements ActionListener { private JFrame f3; private JButton jLogout; private JPanel … |
| | Hey, I've been working on a space invaders program for a class, and have gotten all of code correct except the collision that removes the sprite entity upon being hit. the RowofAlien code [CODE]import java.awt.Graphics; import java.awt.Image; // You do not have to throw an exception if an index is … |
| | TITLE SHOULD ACTUALLY BE: how to get mouselistener to work on method in an class in java If I click a circle it should change the color of the circle. But, I am having difficult getting it to work. Help appreciated. Main just calls this class and calls the init … |
| | can somebody help me to put an action in a button that comes from a different class. Specifically t [code]import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; class LogIn implements ActionListener { private JFrame f,f2; private JButton jLog, jCan, jReg,jOk; private JPanel j1, j2, j3, j4,j5,j6; private JTextField jText; private … |
| | GridBagLayout question My main class holds frame and gets left and right panels from other classes [CODE] /** * Matthew Schrum * 11/14/2010 */ import java.util.Random; import javax.swing.JFrame; public class Sim { public static void main(String[] args) { //variables LeftPanel leftPanel = new LeftPanel(); RightPanel rightPanel = new RightPanel(); //GUI …  |
| | "LeftRightPanel.java:45: setText(java.lang.String) in javax.swing.JLabel cannot be applied to (int) label.setText(num1);" I'm guessing that this is because I'm trying to imput a int in a line where there's supposed to be text. Can I do something like .setNumber, .setNum, or .setInt? Or is this an issue that I need to adrress … |
| | For the final part of this assignment I need to do the following: Any help/advice/starting pointers would be great! 1) Create a row of Alien attackers, class RowOfAlien, patterned after the partially filled array. Put five Aliens in the row. When the row hits the left or right of the … |
| | Hey all. I have a deadline tomorrow, and this thing is killing me, so I come to you with hopes of help. I have a couple of classes. An info class, which converts a string to ints and puts it in the [B]values[/B] array. Another class (plotter), is supposed to … |
| | I have problem how to calculate mutiple checkboxes on the panel. ex: 24 roses with a bear: This costs $72 or 1000 points and $12. 14 Lilies: $24 or 360 points [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.border.*; import java.io.*; import java.text.NumberFormat; public class customerInfoGUI extends JFrame … |
| | Hi, I'm trying to use JAVA GUI for first time. I've got a Jframe that when loaded adds a jpanel. the problem is it will not show any swing controls that get added to the jPanel. I'm using netbeans 6.9.1. any idea to why is happerning would be greatful [CODE] … |
| | I have problem how to calculate mutiple checkboxes on the panel. ex: 24 roses with a bear: This costs $72 or 1000 points and $12. 14 Lilies: $24 or 360 points [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.border.*; import java.io.*; import java.text.NumberFormat; public class customerInfoGUI extends JFrame … |
| | I am having a problem get my program to compile. [B]ERROR[/B] Stopwatch.java:35: cannot find symbol symbol : method start() location: class Timer timer.start(); ^ Stopwatch.java:44: cannot find symbol symbol : method stop() location: class Timer timer.stop(); ^ Stopwatch.java:52: cannot find symbol symbol : constructor Timer(int,Stopwatch) location: class Timer timer = … |
| | its a basic calculator that sums number and i want to make a GUI for it but i dont know where i messed up please help [CODE] import java.util.Scanner; import javax.swing.*; public class Sum { public static void main (String args []){ Scanner result = new Scanner(System.in); int num1; int … |
| | I was reading and researching about adding color into my program. I found this code, which compiles perfectly, but does not show the desired outcome. Here's the code: [code] import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.awt.Color; import java.awt.Graphics; public class Login extends JFrame implements ActionListener{ private JTextField … |
| | Hi guys, im facing a real problem with a project im doing at the moment as Im new to Java. Ive set all the buttons for the program however, i need to make the pictures show randomly. also, il need to make some buttons work, like the nudge button for …  |
| | I have a problem how to transfer my European CApitals Array into JLabel Array, without writing the capitals on each JLabel. I figured out my dropdown menues, but I want to display the counties on JLabels and parallel to it, the textboxes for the capitals, with the JButon next to … |
| | Can somebody help me change the rectangle to an oval? I try importing the Ellipse but it doesnt work :( [ICODE]import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.TexturePaint; import java.awt.geom.*; import java.awt.geom.Ellipse2D; import java.awt.geom.Rectangle2D; import java.awt.geom.RoundRectangle2D; import java.awt.image.BufferedImage; import java.io.IOException; import java.io.InputStream; import javax.swing.JFrame; import javax.swing.JPanel; import com.sun.image.codec.jpeg.ImageFormatException; import com.sun.image.codec.jpeg.JPEGCodec; import com.sun.image.codec.jpeg.JPEGImageDecoder; … |
| | [CODE]import javax.swing.*; import java.awt.*; class Calculator{ JFrame frame; JPanel panel1, panel2; JTextField textField; JButton button[]; Container contentPane; void launchFrame(){ frame = new JFrame("My Calculator"); panel1 = new JPanel(); panel2 = new JPanel(new GridLayout(4,4)); textField = new JTextField(10); button = new JButton[17]; for (int i=0; i <10; i++) button[i] = new … |
| | Hi everybody, I am planning to build a java programe named word counter. It shall have file view and help menu. A text field where user can type or paste text. A button which starts counting number of words in the text. and a text field where the total number … |
| | Hi! When I try to run the code [ICODE]tableModel.setQuery("select l_code, l_title, l_description from Lists");[/ICODE], then I receive the following error: [CODE] java.lang.ArrayIndexOutOfBoundsException: 0 >= 0 at java.util.Vector.elementAt(Vector.java:427) at SystClasses.QueryTableModel.getValueAt(QueryTableModel.java:72) at SystClasses.QueryTableModel.getColumnClass(QueryTableModel.java:53) at javax.swing.table.TableRowSorter.useToString(TableRowSorter.java:224) at javax.swing.DefaultRowSorter.updateUseToString(DefaultRowSorter.java:607) at javax.swing.DefaultRowSorter.sort(DefaultRowSorter.java:556) at javax.swing.DefaultRowSorter.allChanged(DefaultRowSorter.java:816) at javax.swing.DefaultRowSorter.modelStructureChanged(DefaultRowSorter.java:826) at javax.swing.JTable.tableChanged(JTable.java:4364) at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:280) at SystClasses.QueryTableModel.setQuery(QueryTableModel.java:110) at SystClasses.Form.createAdminTable(Form.java:747) at … |
| | Hello I'm having trouble extending JPanel. I know how to extend JFrame but my assignment calls for JPanel. Here is what I have: [CODE]import java.awt.Color; import java.awt.FlowLayout; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; public class Guess extends JPanel { private … |
| | Hey guys! So, I created this form, but I can't seem to add color to it. I'm trying to make it color red. I've been trying to change the color for 2 days cuz I'm a noob :) Thanks guys! Here's code by the way: [code] import java.awt.*; import java.awt.event.*; … |
| | Hi friends, I am doing Bachelor's Course In Computer Science Engineering. Recently I recently completed my course on Application Development and Database Management. Coincidentally a few days ago I was asked by my friend to do a simple software for managing his store. So, i thought I got an opportunity … |
| | Hi friends, I am doing Bachelor's Course In Computer Science Engineering. Recently I recently completed my course on Application Development and Database Management. Coincidentally a few days ago I was asked by my friend to do a simple software for managing his store. So, i thought I got an opportunity … |
| | Ok, im gonna go ahead and just paste most of the stack trace in, (its massive) : java.io.NotSerializableException: com.sun.java.swing.plaf.windows.XPStyle at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) at java.io.ObjectOutputStream.writeSerialData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) at javax.swing.JComponent.writeObject(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at … |
| | How can I change the code below to applet? [CODE] import java.awt.*; import java.math.*; import javax.swing.*; import java.awt.event.*; public class Timer extends JFrame { JButton start = new JButton("Start/Reset"); JButton stop = new JButton("Stop"); JLabel time = new JLabel("Time"); javax.swing.Timer timer; int count = 0; public Timer() { super("Timer"); addWindowListener( … |
| | Hello! My JTree is filled from DB. If I add a new node, and then try to delete it, then the code shown below provides an error. As I see, selectedFolder is sometimes null. Why does it happen? Why [ICODE]getLastSelectedPathComponent()[/ICODE] doesn't return a node selected, but returns null in some … |
| | **CHANGE PANELS IN TITLE TO Grid Layout I first want to apologize for filling the board with a noob question but I don't know how to phrase my question on google. So here we go! My prof has us working on GUI programming. I am trying to split up my … |
| | Hi there, I am getting a 'Cannot find symbol error' on an array in my "ViewContact" Class. The array has been created in the "MainScreen" class. Below I have pasted the code for both classes as to provide you with as much information as possible: The MainScreen Class: [CODE] package … |
| | I'm working on a really basic text editor to save and open txt files. On my text area setLineWrap, it's giving me a "misplaced constructs" and "delete token" for the period and (true) For why? [CODE]/**Matthew Schrum *11/18/2010 */ import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.awt.event.*; import java.io.File; import … |
| | I have created a JFrame contaning a JTabbedPane. What I am trying to accomplish is the changing of tabs within my 'addCustomer()' class via an ActionListener. What I was trying was to call the method 'setTab(int c)' located in my 'BoatLog()' class, from my 'addCustomer()' class to set the index … |
| | I have problem with the stopwatch i made. For some reason, when i press "start" it just lags out. Can someone please check the code and tell me whats wrong? THANK YOU SO MUCH! Executor [CODE] package stopwatchpackage; public class StopwatchMain { public static void main(String[]args) { new StopwatchMain(); } … |
| | Hi, I'm trying to draw 2 quadrilatrials, that share 2 corners and an egde. I also want to smooth edges, so I use ANTIALIASING turned on, but this has the effect of showing a crack between the polygons. The crack dissapears if I turn off ANTIALISAING, but I really don't …  |
| | I have a program, which is essentially done, but there is something I am not very pleased with. First of it is a program that acts like a very basic shopping cart. The user can add or remove items, clear the list of selections they chose, and check out. This … |
| | [B]I have my program working but i need to replace the JOptionPane.showMessageDialog(null, "The cost is " + totalCost); and just have the totalCost output to the totalCharges textfield. [/B] [CODE] import java.awt.*; import java.awt.event.*; import javax.swing.*; public class DormAndMealPlanCalculator extends JFrame { private JPanel dormPanel, mealPanel, buttonPanel, totalChargesPanel; private JComboBox … |
| | In my journey "back to the basics" to get a more solid foundation for my Java skills, I am curious about the difference between using the existing content pane of a JFrame vs. creating a new content pane in a JFrame. I have two chunks of code... The first uses … |
| | Hi all, I'm new here and a little flummoxed by this problem. I am working through the process of creating a notepad type program in java to get a little more experience with the language. My save functionality is not working. This is not unexpected; the part that is really … |
| | Hi, I am having a challenge with this.. I just read a book on Java Applet and there is something that is confusing to me. i need help on that.. There are two programs here... import java.awt.Graphics; import java.swing.JApplet; public class TryMe extends JApplet { public void paint (Graphics g) … |
| | Ok I'm a VERY (stress the VERY) beginner programmer and I made a yahtzee game. Now, I'm trying to make a high score list so as to keep track of the high scores in my 1-player yahtzee game even after the applet is closed. I have one class called Yahtzee … |
| | Alright, this is a school assignment. Unfortunately, we were given about a paragraph of info on apps so I'm not sure what I'm doing wrong. I know it's a pretty random app, but these are the elements that she wanted. My problem is that it runs infinitely when I run … |
| | Hiya, I am using following Java file which creates a GUI, in the input field if i put any character why dont I see the JOptionPane.showMessageDialog pop up window as mentioned in the code? Any clues? Thx Rony //import statements import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.text.DecimalFormat; …  |
| | Hi Dear Danimates, I have developed one tool with the help of Swing components. Is there any possibility to convert that application into JSP.. Bcz i need that application to be in the form of Struts. So help me..... |
| | I am new in java swing and I created a frame... i checked the documentation API and it has this "setSize()" method.. so yeah i did set the size of my frame but everytime i run the program, it is not on the size that i have specified [CODE] public … |
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