3,978 Topics
 | |
| | I'm trying to create a JTextPane that has the following properties: 1. Vowel letters are colored in green 2. Consonants are colored in blue 3. Numbers are colored in red 4. And the maximum number of characters is 26 and all characters are in Upper Case To achieve this I … |
| | Hello, I have a Client/Server program where the Server sends a string with a time delay using a Timer object to the Client. The Client has a JFrame with a JTextArea for display. When I test the Client program, I ran into two issues: a) Nothing ever shows up on … |
| | Hi, am so new to java programming and I need help to create an address book. Am using this project to test my self.(http://sis.ashesi.edu.gh/courseware/cms/mod/resource/view.php?id=218). Please this is my writen code but I need help to add, edit, delete, and the rest of the functions. Or better if someone can guide …  |
| | My teamate and i are looking into how to: The application did not work as required. There was a package statement; (-2) Even though you caught the exception, the incorrect donation should not be printed out to the JtextArea. (-2) I would also work on appending to the text area … |
| | This is my 10,000th post in the DaniWeb Java forum. so I hope I won't get an infraction for being off-topic. I just thought this would be the perfect opportunity to thank all the people who have helped to make this such a valuable and rewarding experience for me. I …  |
| | dear all, I just want to know how can i open any jsp page of my project from swing button of jframe. Do i have to use URL class and its methods or i can directly pass localhost address and run it. please reply. Thank you. |
| | Assignment is as follows: **Create a GUI-based program to accept name of donor, name of charity, and amount of pledge from the user. Display a list of entries in a JTextArea or JTable. Submit the .java source file or files for this program. Do not use any package statements in … |
| | Hi! I'd like to create a simple table game by Swing. I have a JFrame and a JPanel variable. I want to add JButtons to this JPanel, but I'd like to create an own class. I made a class that extends JButton (inheritence): public class GameField extends JButton {...} So … |
| | Heya all, I'm working on a small 'file browser', where the list of files is printed in a console (for now), but where the user inserts the file's path in a GUI. My gui is rather simple: one frame and one panel containing a JTextField and a JButton. I want … |
 | I've noticed when watching videos, usually people import everything. Such as `import javax.swing.*;`. So my question is, is it better to Import everything? Or only the things you need indiviually? I've heard it slows down your program if you import alot of things, is this true?  |
| | Hello, Thank you for the time! a) I have a Ball Object which implements the Runnable interface and traces the various positions of a ball. b) I then have a Ball_Bounce JPanel inside a JFrame which creates two instances of the Ball object and then paints them to the JPanel. … |
| | Dear All, In Java Swing, for all components there is a setSize method which takes int height and width as arguments. And we will pass parameters like 600,500 & 400,300 etc... My doubt is what is the unit of these height and width . I mean on what unit, the … |
| | I've created new JPanel from Swing GUI form called myNewPanel and I have one button in my JFrame it called btnClickMe when the button is clicked I want the panel in the Jframe to be removed and replaced by myNewPanel I've tried my code but it not working for me …  |
| | I having major issues trying to make a GUI for this program. How do I connect my program to my GUI? I don't get it?Can someone help me with this? I also can't get result to read on my GUI.  /* * To change this license header, choose … |
| | Hello, new to Java and I've been doing some coding for a few weeks. Right now I am stumped. I've been trying to make a program that would display how many days are in the month when the user inputs a month number, but it keeps saying that DaysInMonth.java:64: error: … |
| | I am trying to finsih this coding and something is missing and teacher has asked me to init the doubles. I am struggling with the finishing touches of this program. import java.awt.*; import java.awt.event.*; import javax.swing.*; /** * The MenuWindow class demonstrates a menu system. */ public class CellPhonePackage extends … |
| | hello friends, we have stuck with one problem while doing program of mail api. we have doing unread mails via mail api,but its not perfectly working. There is an problem in reading content of (multipart type) of mail. it will work on Text/Plain type. Following is my code.please let me … |
| | I have completed most of the code for my final assignment for my Java class but am having some difficulties getting it to compile. The requirements for the assignment are: • Modify the Inventory Program to include an Add button, a Delete button, and a Modify button on the GUI. … |
 | Hi everyone, I am working on an small inventory management application for learning about swing and i am using jTable to display the contents of MySql table i have to refresh the contents of my jTable instantly whenever i Add an new customer but i couldn't do it because i … |
 | hello good people, i am trying to make a small program that takes input from 4 text fields and adds them to the database(i am using mysql through wamp server) and some other database operations. my Exit and Clear buttons are working. I am using Swing class but have done … |
| | hello,my code is below mention, bt in this my eraser button doesnt show me any cursor in drawpad.. thanxxx in adva import java.awt.BasicStroke; import java.awt.Color; import java.awt.Cursor; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Point; import java.awt.RenderingHints; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.MouseAdapter; import … |
| | It is relaed to the thread i posted a while ago. Before I edited the model of my table, it was working properly, but when i added some columns thats when the problem came out. Everytime i click the button that will open this window, it goes blank. Only a … |
 | Hello, I have looked at an example of `GridBagLayout` (JamesCherrill you must be thrilled : - )!!) and there are a few things that are not entirely clear to me. First here is the code taken from deitel and deitel “Java how to program”, chapter 25: // Fig. 25.21: GridBagFrame.java … |
| | Hello friends. I am having problem with displaying japanese characters into eclipse console. I use eclipse IDE. And I have two properties files. one for default english text, and second has japanese text. which is not correctly displayed when normally opened. I have used ResourceBuilder and Locale class (JDK 6 … |
| | Hello guys, I have built another small GUI:  Even before knowing whether the layout of the application I have built is right, I am facing another big problem. At compiling time I get the following error: Note: Dropdown.java uses unchecked or unsafe operation Note: Recompile with -Xlint:unchecked for … |
 | Hi all I am currently learning Java (and Fortran!) on my own. I have written the following code but for some reason it does not work as it should import javax.swing.JOptionPane; class evenOdd { public static void main(String[] args) { String number, ans; int num; do { number = JOptionPane.showInputDialog(null, … |
| | Hello guys, I hope you can help me with this. I have read a bit about GUI and now I am trying to do a few exercises to consolidate what I have read. In the first exercise I have to reproduce a simple GUI. Well I thought it was simple… … |
| | hey i need help once i run it will proceed to next one it will show error message package test1; import javax.swing.JOptionPane; public class Test1 { public static void main(String[] args) { int counter; int counter1=0; int counter2=0; int counter3=0; int counter4=0; JOptionPane.showMessageDialog(null,"Welcome"); for(counter=0;counter<20;) { int num1; String firstinput = … |
| | I'm currently creating a Java program in swing for my final year project simliar to something you'd find on codeacademy etc. i'm trying to compare the user input for example "System.outprintln(helloworld");" with a string of the stored answer for the question in this case the answer would be "System.outprintln(helloworld");" i've … |
| | Hi guys, I tought I'd experiment a bit with layout managers, trying to get to grips with them. I will start with a flowLayout, then hopefully move on to more complex ones. OK, so here is the code for the first example, very simple one: /*FlowLayoutManager.java layout manager tests*/ import … |
| | Hi! I'm making an app and I need to know how to set position of strings in java. Here is a code: import java.awt.*; import javax.swing.*; public class Draw extends JFrame{ JPanel panel; JLabel string; public Draw(){ super("CO-LERNER"); setSize(300,150); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); setLocationRelativeTo(null); string = new JLabel("Example"); panel.add(string); add(panel); } } |
 | I am relatively new to java and am having trouble using a cardlayout. When I press the button to switch cards I get a nullpointerexception but I do not understand where I could possibly have anything set to null. Any help would be greatly appreciated. This is my error... Exception … |
| | I`m making a GUI for my java program using Swing Components and Netbeans IDE. My problem is that when loading a frame from another frame then newly loaded frame shows the contents of the old frame when moving mouse over the new frame.Please help me o avoid this.Am using drag … |
| | Hello all, I am stuck with a nullpointerException at line 41 and 60.Can someone please help me out.any kind of help will be appreciated. Thanks import javax.swing.*; import javax.swing.event.*; import java.awt.Color; import java.awt.*; class calenders extends JFrame { int i=0; int j=0; int k=0; JFrame jf; FlowLayout fl; JPanel jp[]; … |
| | Hi all. Im having trouble getting my menu to work on my window. this is what I have so far as for my code. package sparepartinventory; import java.awt.Dimension; import java.awt.Toolkit; import javax.swing.*; /** * * @author jonathan */ public class SparePartInventory { /** * @param args the command line arguments … |
 | Please help me with this, i'm trying to create a domino game (which a project in school) i'm a midway learner of Java Prog, but still i haven't know a lot. My problem is, i'm trying to draw over the background image of my playFrame, but the rectangle does not … |
| | hi geys , I need ow to return a array string to my method public String[] SearchPort(){ ArrayList<String> arr=new ArrayList<>(); Win32Driver w32Driver= new Win32Driver(); w32Driver.initialize(); port= CommPortIdentifier.getPortIdentifiers(); while(port.hasMoreElements()){ cuport=(CommPortIdentifier) port.nextElement(); if(cuport.getPortType()==CommPortIdentifier.PORT_SERIAL){ // return cuport.getName(); arr.add(cuport.getName()); String[] t=new String[arr.size()]; t=arr.toArray(t); for(String j:t){ return t; } } //System.out.println(cuport.getName()); } String h[]={"noo data … |
 | I have good knowledge of C, and a good knowledge of core Java. Please list out the areas I need to cover for J2EE. There are many technology available in j2ee.. Please tel me which technology is using uptodate.. I have premium account in lynda, vtc, and pluralaight.. There many … |
 | I know that this is probably the stupidest question that I have ever asked but here goes....... I am trying to create a new application in netbeans..... and having no luck at all. First I create a new project called Interactive Campaign Manager by choosing java category and then Java … |
| | hi , we have a requirement to get grand parent,parent and child nodes display in treemodel.At the moment we have the parent ,child display of Tree Model .Could you please advise what need to be done to get this hierarchy -Grand Parent - Parent -children Thanks in advance for your … |
| | Hello all! Again thanks for viewing my thread. The past couple of days I have been struggling with trying to add JPanels to a JScrollPane. Basically I have data to display that comes in from another application in the form of a JPanel with regular updates. I am trying to … |
| | Hi, I was asked to make a Phone Book thats saves entries and call them up. Then the teacher added a new task. The Program should delete entries. He gave us a methode and said we are not allowed to use ArrayList or Hashmaps, ONLY Arrays. I tried alot but … |
| | Hello Everyone, I am having trouble getting a display of my program on the JTextArea "DisplayWindow". My code works and compiles but i do not know how to transfer the program to run on the GUI. It is really simple and I just want it to display and accept the … |
| | Hy I would like to know what python gui framework, I can use that will be compatible cross platform and will help me create my snippet saver, that will be relational database, with categories for each language. I thought I can use kivy to create my graphical interface than use … |
| | I'm not able to see content on JFrame ,when JFrame shows up. import java.awt.*; import javax.swing.*; import java.awt.event.*; public class GraphicUse extends JPanel { public void PaintComponent(Graphics gr) { super.paintComponents(gr); this.setBackground(Color.BLUE); gr.setColor(Color.WHITE); gr.fillRect(50, 50, 100, 100); gr.setColor(new Color(139,38,190)); gr.fillRect(50, 70, 100, 100); gr.setColor(Color.RED); gr.drawString("This is a new String", 50, 90); … |
| | HI. I'm new at programing in Java and I made a little program that: 1. Show current date 2. Show curent time 3. When button about pressed pop up about 4. When button setalarm pressed set Alarm(for begining in minutes) The problem is when i run the program everything works … |
 | I have an old pc. It's an AMD Athlon 64 X2 4200+ running Windows XP. I want to try and run Windows 7 32 bit on it. I don't want to lose all the data on my 250gb XP hard drive, so I was thinking of getting a 500 gb … |
 | My computer does not have the swing.properties. How to make a swing.properties file and with what software?  |
 | import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; import java.util.Scanner; import javax.swing.filechooser.*; import javax.swing.ScrollPaneConstants; public class validatiorGUI implements ActionListener { JFrame frame = new JFrame("C0015665"); JFileChooser chooser = new JFileChooser(); JPanel aPanel = new JPanel(); // create text area and buttons JTextArea area = new JTextArea(); JButton openButton = new … |
 | This is what I have to do: Write an application that asks the user to input the radius of a circle as a floating-point number and draws the circle, as well as the values of the circle's diameter, circumference and area. Use the value 3.14159 for pi. [Note: You may … |
The End.