3,978 Topics
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| | I don't get where to insert the code and such; I could really use some help with this. :) Here's my java file: (I removed irrelevant stuff) [code=java] package projectprojectile; import java.applet.*; import java.awt.*; import java.io.File; import java.util.Calendar; import java.util.LinkedList; import java.util.List; import javax.swing.JOptionPane; public class Main extends Applet implements … |
| | hi, I've a bug in the following code, i don't know where it is?? is it in the design itself, or the code needs threading especially in the "Swing". The following code is a part of simple word game that display a word with it's correct meaning among wrong ones, … |
| | Hello I am not an experienced programmer, and I entered some code from a book I am following, to see if it would work but unfortunately I have run into some difficulty. This program prompts the user for the red, green, and blue values, and then fills a rectangle with … |
| | Hi there, im using a java program call Blue J and im now learning something new on java, but it quite complicated on my coding and having some problem with it or may be i have screw up with my looping and linking another new java call addIntegers with it, … |
| | Hi. I'm trying to write a program that, when ran, opens an undecorated JFrame, and shows a list of icons that when clicked on, run a program, or open a folder. I'm having trouble getting the actual Icon Image. When I try, it gives me one of the default Java … |
 | I got components in layout as I wish to have them. Unfortunately 2nd row doesn't start as expected bellow first one, but directly under it (you can see portion of text draw on panel, should be visible whole). [attach]10549[/attach] I know that [LIST] [*]toolbar should have height of 60 [*]sidebar … |
| | Hi all - This is my first time posting here, but I'm hoping someone can help me. My homework assignment is to make a GUI number guessing game with the number of guesses shown. I've gotten the entire program working, but for the life of me I can't seem to … |
| | I'm having small issue with drawing on panel. Neither image or text appears, however background is set correctly therefore it has to be due some issue inside my paintComponent() method. [code=Java] import java.awt.Graphics; import java.awt.Color; import java.awt.Dimension; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO ; import javax.swing.JPanel; public class … |
| | Hi all, I'm trying for a long time, to make a program working in java. I would load a JPanel in my java programm when i press on a menu item. Now i have made a function ChangeRoot(); in the main class. After that he must change the contentPane();. Can … |
 | Hi, I am trying to do something like this:- [CODE]1 10 20 30 ##########|##########|########## rect 1 rect2 rect3 5 ########### 15 user rect - (transparent and temporary based on user mousedrag) [/CODE] Now If a user clicks suppose in the middle of rect1 and drags it to the middle of … |
| | I'm having a problem with my countdown timer and am figuring that I'm missing something obvious. All I'm trying to do here is get my jLabel to countdown from 60 to 0. [code] ActionListener refreshListener = new ActionListener() { int counterLimit = 60; public void actionPerformed(ActionEvent e) { javax.swing.Timer refreshTimer … |
| | hello friends,I made an applet to calculate sales tax but i am having a problem in executing it.It is giving error on execution. and the error it is giving is, cant create:java.lang.reflect.InvocationTargetException following is the piece of code of applet. import java.awt.*; import java.awt.event.*; import java.text.*; import javax.swing.*; public class … |
| | I just inctance 5 JFrames with string drawed and its using 100% ...??? that add(panel); make the diference in CPU 5 or 100% I marked it in the comment in the code here's the code: [CODE]//import java.awt.event.WindowEvent; //import java.awt.event.WindowListener; import java.awt.*; //import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.event.*; import …  |
| | Hi i am working swing based applet application which is deployed on a [B]jboss3.2.6[/B] webserver.the jar file [B]application.jar[/B] size is 140kb.i compressed the jar file using sun java pack200 technology as [B]application.pack200.gz[/B] file.now the jar file size is 46kb.the jar is deployed on application.war file with context-path [B]/application[/B] on the … |
| | I posted before but i had to repost to add the code thing. So heres the program. [CODE] import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.awt.Color; import java.awt.Font; public class Testknowledge3 extends JPanel implements ActionListener { //Declare objects JButton Next; JButton Back; JLabel label; ImageIcon icon; JTextArea title; … |
| | Ok so im doing a project for school and i made an array to add up the scores. (the project is a learning module, (game)). So heres my code, i have declared everything in my main program (starting one) called science.java and my two other parts of the game (true … |
| | how can I trigger anything outside the method ??? like carry the boolean a outside [CODE]public void windowClosing(WindowEvent arg0) { System.out.println("Window Closing"); a=true; // cant refer to non final variable a inside an inner class defined in a different method[/CODE] I want to use "a" in while loop for instance … |
| | Hi I am writing a java program for a mobile database that should input from the user three entries (manufacturer, Model and Rating) save this in an array and file and be able to search from the data i the file and print on screen. I have written it but … |
| | So, I have an interface I would like to use, and I need to put lines on a JPanel within a Frame. Because I need other controls in the Frame so if I set the frames focus to the lines I won't have the controls. And also, I have another … |
| | Hello All! First thanks for viewing this thread. My issue is I have a class below that I want to call and the constructor requires a File variable and I do not understand how to declare this so I can call it from my main class. My last issue is …  |
| | I've written a code for JButton handeling.The code is= [code=java] import javax.swing.*; import java.awt.*; import java.util.Calendar; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; // Example using defaultButton and JRootPane.setDefaultButton() public class DefaultButtonExample { public static void main(String[] args) { // Create some buttons JButton ok = new JButton("OK"); JButton cancel = new JButton("Cancel"); …  |
| | import java.awt.BasicStroke; import java.awt.Color; import java.awt.Dimension; import java.awt.*; import java.sql.*; import java.util.*; import java.util.Date; import java.lang.*; import javax.swing.JApplet; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; //import org.jfree.chart.demo.Time; /** * A simple demonstration application showing how … |
| | Hey ppl, i am trying to do this exercise from my java book, but i cant do anything right apparently :( [I]Write an application that asks the user to enter an integer n, and then draw an n by n grid on the panel. whenever the user clicks inside one … |
| | This is part of a connect 4 game. I'm trying to get a picture to move each time a player makes a move by calling paintComponent but java won't let me. How do I move a picture in my code? [code] import javax.swing.*; import java.awt.*; import java.awt.event.*; public class PanelC4 … |
| | I've been writing code to develop gatepass system for my college. I've to made space for taking the photograph of the visitor taken by the camera at gates and then save the whole page in the database(actually the structure is already defined). Please suggest what to do.The code I've made …  |
| | Hi Ezzaral... As per my last problem which is solved. So as I told you that I want to add GradiantPaint. This is the code that I came up with. This code is compling but giving me some runtime errors:. Please find the error report below- [CODE] import java.awt.BorderLayout; import … |
| | I need to write a applet that displays between one and three figures that walk across the screen at different speeds form left to right. I have one figure walking across the screen but can't seem to get figure two or three to work correctly. This is what I have … |
| | Class A has a MouseMotionListener which updates cursorLocation every time its called; Class B extends A. the idea is to make B's lastSelected update once cursorLocation is updated and println the new coords. i thought paintComponent could be used for that but im sure theres something obvious im missing: [code="java"]import … |
| | I am in my final weeks of my first Java Class. I have the next part of my program due over the weekend and I am stuck. The assignment is as follows: Modify the Inventory Program to use a GUI. The GUI should display the information one product at a … |
| | Hello everybody! I want to create a JTable (showing data from mysql..) on a Panel. But I dont get it..nearly every method is unavailable. Here is my code for creating it on a frame: [code] package gfx; import java.awt.*; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.io.*; import java.sql.*; import java.util.*; import … |
| | Hello, I am getting the following errors: unexpected type line 433 operator + cannot be applied to <any>,double line 433 operator + cannot be applied to <nulltype>,double line 433 incompatible types line 433 unexpected type line 441 In the below file. I know its probably something simple, but could use … |
| | I have been testing a application I made, which is a simple swing interface with a checkbox. I am using custom icons for my checkbox, for checked, checked and mouse-over, unchecked, and unchecked mouse-over. I am using the eclipse IDE. Eclipse creates your application in the workspace file, so the …  |
| | Hi everybody, i just have a task from my teacher..and the task is to make the chatting application with java (GUI = Swing) that implement the multithreading and multicast socket. can you give me the resource or tutorial??!! help me please.... :) |
| | sorry i can't found tread about voice recoder!! my question is how to recording voice with microphone and play recording with java swing/netbean and output from voice is save to hardisk!! thanks all |
| | I am getting the error in the title of this post when I try to run my ColorFactory class. Can someone tell me where Im going wrong? Heres my code: [CODE] import javax.swing.*; import java.awt.*; import java.awt.event.*; public class ColorFactory extends JFrame { //Fields of the class private JLabel messageLabel; … |
| | Hello, my name is Amanda and I am quite new here. I tried to add a few words to my website page located at [url]www.openrangemagazine.com/thisissue.htm[/url] - as you can see (if you don't mind going there) the page is now blank. I have no idea what I did. Here is …  |
| | Note, some of the code could be hard to understand as a bit is in Swedish. Hi! I am trying to learn some sql/java. I created some tables in an sql-database, and a java-program to access and modify the tables. I am not that experienced in programming so I might … |
| | Iam using an AWT component. Did a little research but cannot find anyway I can make my player return a JComponent..tried this casting but Iam getting an exception at the line. [code=java]((com = (JComponent)p.getVisualComponent()) != null)[/code] I also got to see something about mixing SWING with AWT so I decided … |
 | [code] import javax.swing.*; import java.awt.*; public class keyboard { public static void main(String args[]) { String s[] = {"esc","F1","F2","F3","F4","F5", "F6","F7","F8","F9","F10","F11","F12", "psc","slk","pau"}; JButton j[] = new JButton[s.length]; for(int i=0;i<s.length;i++) j[i].setText(s[i]); JFrame f = new JFrame(); for(int i=0;i<s.length;i++) f.add(j[i],JFrame.LEFT_ALIGNMENT); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } } [/code] I need Instant Help!. Code is giving me … |
| | Hi all I want a help for changing this program to a linux program . Can anyone help me? wether is it in c++ or Java. [code=java] import javax.swing.*; import java.awt.*; import java.awt.event.*; class fcfs extends JFrame implements ActionListener { JButton jb[] = new JButton[3]; JTextField jt1[],jt2[]; JLabel jl[],jl1,jl2,jl3; JPanel … |
 | I keep on getting the following error, I've tried modifying the constructor, but I can't get it to work. "C:\Users\Documents\NetBeansProjects\Assignment-1\src\Bank.java:34: cannot find symbol symbol : constructor Customer(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String) location: class Customer Customer customer = new Customer(last, first, street, city, state, z, acctNum); 1 error BUILD FAILED (total time: 0 seconds) " … |
| | When you click save in this program , it is saved nicely but the txt file being saved is all in one line. How can i overcome this matter? Just FYI, when anyone try to save, dun forget the file extension (*.txt) [CODE=java] import java.io.*; import java.awt.*; import java.awt.event.*; import … |
| | hi all,how are u? ..i have an encryption project.. i have to implement some of the encryption algorithme in java but i have a problem ..it's the same in all the ciphers ..when i type the key and press encrypt the encrypted text is not right ..i make my calculus … |
| | Hi Guys Im having a problem. Im very new to Java and am using blueJ. I would like to displya a picture on a label when I click a button. At the moment all I can get it to do is to print a message when a button is clicked. … |
| | Hello, I am having problems with indexOf() and contains() they work if I put letters in the code to test, but I want it to test what the user enters. And that is not working. The user enters a letter into a JTextField, and I am storing that word to … |
| | I am creating a mobile game using Netbeans IDE 6.0.1 but I have a problem adding new configuration I get the following error: java.lang.NullPointerException at org.netbeans.modules.mobility.project.ui.customizer.NewConfigurationPanel.isValid(NewConfigurationPanel.java:198) at java.awt.Component.invalidateIfValid(Component.java:2740) at java.awt.Component.setLocale(Component.java:1810) at javax.swing.JComponent.<init>(JComponent.java:595) at javax.swing.JPanel.<init>(JPanel.java:65) at javax.swing.JPanel.<init>(JPanel.java:92) at javax.swing.JPanel.<init>(JPanel.java:100) at org.netbeans.modules.mobility.project.ui.customizer.NewConfigurationPanel.<init>(NewConfigurationPanel.java:96) at org.netbeans.modules.mobility.project.ui.customizer.J2MECustomizer.run(J2MECustomizer.java:304) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561) [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986) anyone know what … |
| | I am new to programming and am trying to create a program to access a database of DVD's. I want to input a unique code for a title and display relevant fields from that record. I am getting the error above and have spent many hours now trying to see … |
| | Hi me and my class are getting this problem with tim.start(); and stop. we get start to work with a button but cant stop and we can stop with the keyboard but not with the buttons bad explaination i know but have an look plz :P [CODE] /* * To … |
| | Im trying to program a Caeser cipher that will upload a file from documents and enrypt/decrypt it. i do not know how to implement one main class containing all that and different methods in one class. i have different separate classes. can anyone pls put them together as one main … |
| | I have design report with ireport, if that report i run in netbeans its ok, but while i move to drive c: got error like this "error displaying report page. see the console for details" if i try in command prompt get message [code] java.lang.NullPointerException at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown … |
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