3,978 Topics
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| | hi .. i make this code .. but when i run it ..doesn't show whole output in window ..and its not show correct answer .. i can't find error / but its not worked welll /* * To change this template, choose Tools | Templates * and open the template … |
 | hi there i cant seem to figure out how to print each name and letter grade of each person once and my program displays a indexStringoutofBound execption please help solve my problem heres my codes. ackage project; import javax.swing.JOptionPane; public class DoingATest { public static void main(String[] args)throws StringIndexOutOfBoundsException { …  |
 | I new to java's applet programming & there is a problem in my program This is my program: import javax.swing.*; import java.awt.*; import java.awt.event.*; /*<applet code=Rect height=600 width=800></applet>*/ public class Rect extends JApplet implements ActionListener { JLabel jl1,jl2,jl3,jl4; JTextField jt1,jt2,jt3,jt4; JButton jb; int x1,x2,y1,y2; public void init() { Container c=getContentPane(); … |
| | I am not getting this program since i beginner to applet programming import javax.swing.*; import java.awt.*; import java.awt.event.*; /*<applet code=Login height=500 width=300></applet>*/ public class Login extends JApplet implements ActionListener { JLabel jl1,jl2,jl3,jl4,jl5; JTextField jt; JPasswordField jp1,jp2; JButton jb; public void init() { Container c=getContentPane(); c.setLayout(new FlowLayout()); jl1=new JLabel("Username : "); … |
| | i have a error in this program...i m tryin to write a java GUI program that converts character to corresponding integer and vice versa...tis is my code...can anyone help me solve the error???the error is : 1 error found: File: C:\Users\Kumaresen Nair\Desktop\Conversion.java [line: 58] Error: The local variable word may … |
| | i have a error in this program...i m tryin to write a java GUI program that converts character to corresponding integer and vice versa...tis is my code...can anyone help me solve the error???the error is : 1 error found: File: C:\Users\Kumaresen Nair\Desktop\Conversion.java [line: 58] Error: The local variable word may … |
| | import javax.swing.JPanel; import javax.swing.ImageIcon; import java.awt.Image; import java.awt.Graphics; import java.awt.Graphics2D; class View extends JPanel { Image icon1,icon2; public View(){ ImageIcon i1=new ImageIcon(this.getClass().getResource("tile1.png"));//image I drew ImageIcon i2=new ImageIcon(this.getClass().getResource("tile2.png"));//image I downloaded icon1=i1.getImage(); icon2=i2.getImage(); } public void paint(Graphics g){ super.paint(g); Graphics2D g2=(Graphics2D)g; g2.drawImage(icon1,10,10,null);//this image is not displayed g2.drawImage(icon2,200,200,null);//this image is displayed } } … |
 | import javax.swing.JFrame; public class MainApp { public static void main(String[] args) { new MainApp().start(); } public void start() { CalculatorUI obj = new CalculatorUI(); obj.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); obj.setSize(275,275); obj.setVisible(true); } } import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JTextField; public class CalculatorUI extends JFrame { //Variables. … |
| | Hey everybody, New to the java scene and having major issues, it would be appreciated if someone could have a look at my coding and see where i'm going wrong. I have a few 1. When i press the 'start new game' button the random number resets but not the … |
| | mport java.awt.Color; import java.awt.Graphics; import javax.swing.JOptionPane; why this is not working need help public class NewClass { static String myBinary; public static void main(String[] args) { String code = JOptionPane.showInputDialog("Please enter zipCode: "); BarCode myBar = new BarCode(code); myBinary = myBar.getCode(); int length= code.length(); if (length != 5 && length!=9) … |
| | Filterable `AbstractListModel` uses `originalModel` of `JList` as source and excludes those items from `originalModel` that matches exclude criteria specified by given regex. It also allows reusing same model (with filtering capability of course) for multiple JList components. It also registers as `ListDataListener` to `originalModel` model to be able to relay … |
| | Hello, I am having some trouble writing this java GUI. First in the win1, i cannot get the start and exit button to the bottom of the page along with the jlabel into the center. Next for win2 i cannot resize the "go here" button at the bottom of the … |
| | I am designing a very basic form in which I am using GridBagLayout to position and size the GUI components. All the components get sized and positioned exactly as I expect from my code except the two radio buttons named "noRadio" and "yesRadio" respectively. I want them to appear next … |
| | Hello, The following program computes the value of Pi using the Hit/Miss method. Since I am doing all the drawing in the JPanel, I am not calling super.paintComponent(g). The program works well, but since I am not using the super.paintComponent, it does not draw the background. Is there any way … |
| | I have this program I'm writing. I need help with the bet part of the program. I'll give you an idea of what I'm doing: The player starts with $500. He can bet between 0 and his current amount left on next turn. If he bets 0 the game is … |
| | Hello, I'm new to this site, and i really need help with something. I have been working on a checkerboard project for my second programming class, and now I'm stuck. I now how to set the icons, but now I am absolutely confounded as to how I move the icon … |
| | Hello, The following program displays two images (ImageIcon type) inside the JTextArea. Is there a way I can make both of these images transparent sothat what I type on them is visible? Thanks in advance! import javax.swing.*; import java.awt.event.*; import java.awt.*; import java.awt.image.BufferedImage; import java.io.File; import javax.imageio.ImageIO; import java.io.IOException; public …  |
| | import java.io.*; import java.nio.ByteBuffer; import java.util.zip.*; import javax.crypto.*; import javax.crypto.spec.*; import javax.swing.*; import javax.swing.event.*; import java.awt.*; import java.awt.event.*; public class Steganograph { public static final byte[] VERSION_BYTE= {'2','0','0'}; public static final int OFFSET_JPG= 3; public static final int OFFSET_PNG= 42; public static final int OFFSET_GIF_BMP_TIF= 32; public static final short … |
| | Here is a very simple segment of code. What I want is when I click on the button "First Button" then the window become empty. What actually happens is the window just becomes unresponsive. What could be the problem and what could be a solution?? import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import … |
| | package array1; import javax.swing.*; import java.util.Random; class pickrand{ Random rand = new Random(); public static String get(String[] array){ int rnd = rand.nextInt(array.length); return array[rnd]; } } /*********************************************************************/ public class Array1 { public static void main(String[] args) { int size = 10; String[] passcheck = new String[size]; String[] pass = {"abc345", … |
| | package gui; import javax.swing.*; Import java.awt.event.*; import java.applet.Applet; public class FE extends Applet implements ActionListener { private JLabel lb = new JLabel("Enter text :"); private JTextField jtf1 = new JTextField(10); private JButton jb = new JButton("ENTER"); private JLabel lb2 = new JLabel(" "); public void init() { add(lb); add(jtf1); add(jb); … |
| | I keep getting an error with the "ButtonListener." I don't know what it is that's causing it, but help would be appreciated. import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class MovingCarPanel extends JPanel { private int delay = 2; private Car car; private Timer …  |
| | // This is the error message I'm getting..C:\Program Files\Java\jdk1.6.0_25\bin>javac c:\java\Grade1.java // c:\java\Grade1.java:49: variable grades might not have been initialized // switch(grades) // ^ import java.util.Scanner; import java.text.*; import javax.swing.*; import java.util.*; import java.io.*; public class Grade1 { public static void main (String[] args) { String str, lgrade, studentName, courseName; int …  |
| | I am creating an program that allows a user to register for a conference. When I press the "Run" button in Netbeans I get a message saying "Build Successful," but the program does not show up on the screen. What am I missing in my code? I am new to … |
| | I just started learning Java (Currently, I know basic swing components like JPanels, text areas, textfields etc) and I have chosen a Logic Circuit Simulator as a project. My objective is to simulate the working of logic gates by making circuits using drag & drop. So far, I have thought … |
 | Good To Meet you All! Sir In my server This is the JButton action for start server private void strsrvActionPerformed(java.awt.event.ActionEvent evt) { getClint(); } This is action Performed sir.., public void getClint() { try { ServerSocket ss=new ServerSocket(1030); try { JOptionPane.showMessageDialog(null,"Server is runing"); while(true) { Socket s=ss.accept(); Service a=new Service(s); … |
| | I need to develop a graphical representation of a balanced binary tree using random numbers from an array with the number of elements entered by the user. That part I got down and it is working fine. The next part of the assignment requires me to display the number of … |
| | Hi, I'm kind of new to VB and I'm trying to make myself a little game to help me get into the swing of VB (I know some java). Basically what I'm trying to do is this, I have 20 statements in a Select Case (right now they're just labels … |
| | I am almost done with this Hangman game, but I am having problems with the letter buttons and am lost as to what to do to fix the problem... package hangman; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; import java.io.*; public class Hangman extends JFrame implements ActionListener { private … |
 | Hey guys Im having trouble with my interface java program I have it all set up but im getting an error on my lowercase button and uppercase. is there a certaint type of formate this needs to be in for interface? here is my code: import javax.swing.*; import java.awt.*; import … |
| | package maxmin; import javax.swing.JOptionPane; public class MaxMin { public static void main(String[] args) { final int Tnum = 5; int num[] = new int[Tnum]; for(int i=0; i<num.length; i++) { String numstring = JOptionPane.showInputDialog(null,"Please enter number: ","User Input", JOptionPane.QUESTION_MESSAGE); num[i] = Integer.parseInt(numstring); } int max = num[0]; for(int i=0; i<num.length; i++) … |
| | Hi, I have a swing application which works on CSV file. It reads full file line by line, computes some required statistics and shows output. The Upper part of output screen shows each record from file in that order in JTable, whereas lower part shows statistics computed based on that … |
| | Hello, The following program has a JFrame which contains an image, JTextArea and and a textfield. How can I display the image inside the text area? I will be grateful for any help! Thank you! import javax.swing.*; import java.awt.*; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import java.awt.event.*; public … |
| | Hey guys im new to java in the process of learning how would i go buy adding exceptions to my code with a try/catch when i divide by zero or enter a word instead of and integer. package errorapp; /** * * @author Brandon */ import javax.swing.JOptionPane; import java.util.InputMismatchException; public … |
| | Hmm i really like what applications like Windows Media Player and VLC player can do, and by this i mean: you know when you are watching a movie or listening to music and you minimize the window? Well if you hover the taskbar icon of the minized window with your … |
| | Hello, I have two problems. First, I am trying to have a set background image that displays with two jbuttons on the bottom. My error is that when the back ground image is displayed it hides the buttons (until you mouse over them). Second, I want the buttons on the … |
| | Need to add a JCombobox to select the user’s State of birth, and a JRadio buttons to indicate their gender. Also, add a JTextArea to the form. Once the user clicks on the JButton the application will display all of the user’s information in the JTextearea. All the classes work … |
| | Per the title, I'm trying to make my GUI change with the RadioButton selection. Specifically, I want to control which JLabels and JTextFields are displayed based on the RadioButton selection. Right now, my GUI displays the Employee ID, Last Name, First Name, Credit Rate, and Credit # Labels, and their … |
| | Hi, To start with I'm new to Java and this is my second project: to create a graphical TicTacToe game with MVC pattern. View and Control will be in the same class for this project. The goal is to learn about interfaces and to split your problems into seperate parts. … |
| | I have a class that has a text area. the code is as follows package view; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.ScrollPaneConstants; public class LabelStatus extends JPanel { /** * */ private static final long serialVersionUID = 1L; … |
| | Hello, I've no experience with layouts, and I want to learn it, especially how to place components in the right places. I'll give an example, and I was wondering if you could help me? **Main class:** import javax.swing.*; import java.awt.event.*; public class Main { public static void main(String[]args) { final … |
| | ii m getting error message "class ,interface or enum expected.can anybody help me please thanks.." import javax.swing.*; import java.util.*; public class StudentBook { ArrayList students; public StudentBook() { students=new ArrayList(); } public void addStudent() { String name=JOptionPane.showInputDialog("Enter the name of the Student"); String rNum=JOptionPane.showInputDialog("Enter the Roll Number of the Student"); … |
 | Hello. I am using a Swing worker to scan various tables during a can of a DB. While it is working the progress bar encompasses a busy icon. My question is how can I make the pointer take on that icon while a system scan is in progress? While the …  |
| | > I'm implementation polymorphism and have one confusing that if I use instanceof then I'm trying to perform casting which voids polymorphism so will that be any way to avoid instanceof with the code and still have the program working? Block of code where I have used instanceof starts from … |
| | I need to make a checkers board that has to be also resizeable. At the moment I'm using JPanel and it's method paintComponent to paint the squares. But the problem is with the class test: the squares drawn have to be squares and they cant go out of proportion, so … |
| | package now; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.*; public class Now extends JFrame { JLabel FirstName; JTextField jtfFirstName; JLabel LastName; JTextField jtfLastName; JLabel Age; JTextField jtfAge; public Now(){ //Set FlowLayout setLayout(new FlowLayout(FlowLayout.LEFT, 10, 20)); //Add labels and text fields to the frame add (new JLabel("First Name")); add (new … |
| | I have been messing with this for 2 days now and for some reason my image will not show up. I have tried to move the code around to varying locations just to see if I am just placing it in the wrong area but nothing seems to work. /* … |
 | Any About this error run: Exception in thread "AWT-EventQueue-0" java.lang.VerifyError: (class: stockinventoryforecast/productEntries, method: <init> signature: (Ljava/sql/Connection;)V) Constructor must call super() or this() at stockinventoryforecast.mainPage.actionPerformed(mainPage.java:226) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289) at java.awt.Component.processMouseEvent(Component.java:6504) at javax.swing.JComponent.processMouseEvent(JComponent.java:3321) at java.awt.Component.processEvent(Component.java:6269) at java.awt.Container.processEvent(Container.java:2229) at java.awt.Component.dispatchEventImpl(Component.java:4860) at java.awt.Container.dispatchEventImpl(Container.java:2287) at java.awt.Component.dispatchEvent(Component.java:4686) … |
| | Hi! I have several 55 x 55 px png-pictures, which need to be rotated by 0, 90, 180 or 270°. I tried the following but in that cases the pictures were not on their correct positions anymore. Thanks. // Import the basic graphics classes. import java.awt.*; import javax.swing.*; /** * … |
 | have various classes representing various types of program-genres (comedy, drama etc). I have a text file filled with '-' seperated values that get read by a class called Processing and puts them into a LinkedList. I have another class GUI_g that creates the GUI. It has 3 JTables. One for … |
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