Java Swing AddMouseListener
Jan 23, 2015
I am trying to get my MouseListener to change the foreground and background on hovering over and once the menu is clicked, unfortunately only mouseEntered & mouseExit works but once I click on the menu I loose the selected colours so I am trying to use mousePressed but it does not have any affect.
mnuFile.addMouseListener(new MouseAdapter() {
public void mouseEntered(MouseEvent evt) {
mnuFile.setForeground(Properties.ORANGE);
mnuFile.setBackground(Properties.BLACK);
}
public void mouseExited(MouseEvent evt) {
mnuFile.setForeground(Properties.WHITE);
mnuFile.setBackground(Properties.BLACK);
[code]....
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Feb 2, 2014
I am programming a project where i am supposed to make addition, subtraction, division and multiplication which i can do. I need making a GUI with pictures and thumbnails of other pictures below.
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Apr 22, 2014
I desired to produce a GUI in Java swing which should be look like mobile phone, as rendered under. test.jpg...So now the user should press the buttons and he can see the operation on the given phone screen, like if user press button "1" then it should display on the screen.
public class SimulatorPanel extends JPanel
{
public static BufferedImage image;
public SimulatorPanel ()
{
super();
try
[code]....
Basically, I wanted to develop a mobile simulator, but I having problem with GUI only. Or any open source simulator in Java?
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Feb 4, 2015
I'm just starting to learn Java GUI. I'm trying to make a simple GUI that will update dynamically but having trouble ending the loop correctly.The Currently I've got the GUI updating and stopping, but the Test class method loop does not terminate correctly, it continues to count.
import java.awt.*; // Using AWT container and component classes
import java.awt.event.*; // Using AWT event classes and listener interfaces
import java.util.Timer;
import java.util.TimerTask;
[code]....
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Sep 19, 2014
How to save in array or arraylist when i click the jbutton
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Jan 19, 2014
I am trying to save a state of a big GUI Swing app. I am trying to save the containers (ArrayLists and JPanels too ). But I am recieving an exceptions:
Java Code:
ilian.Quiz.MainApp$5
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173)
at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:162)
[code]...
What is causing it? I guess anonymous classes like new Thread(new Runnable(...) will cause errors.
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Jul 10, 2014
I have a GUI with several buttons and I'm using NetBeans GUI Builder to do. At the click of one of these I would like for it to open another frame containing a picture. So I associate a listener (actionPerformed) the button and when clicked it opens actually post the new frame.
In the new frame I waxed a JLabel and then I associate the image of the label. I saw that to do that NetBeans generates this code:
label.setIcon(new javax.swing.ImageIcon(getClass().getResource("/img/tree.png")));
My problem is that the picture is overwritten several times during the execution of the program is not changed yet in the frame. That is, in the new frame is always displayed an old version of the image.
I have an image that is created every time I click on the button (it always has the same name and same path). Basically I have a generic tree on which I perform the operations (add, remove, etc..). When I click on the button I call a method that generates the image of the tree (using Graphviz). So I have one image that changes over the time...
How can I do so that the image is always up to date?
The Code:
package View;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
public class AlberoIpotesi extends javax.swing.JFrame {
[Code] ....
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May 22, 2014
What are the different options available to plot graphs in Java other than JFreechart API?
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Mar 16, 2014
i have 2 java program the first java program is main menu of my program. the 2nd is Calculator.
#1 Program: Main Menu
import java.awt.event.ActionListener;
import java.awt.event.*;
import java.awt.*;
[Code].....
in the main menu there is a Jbuttons. is there a way to run the #2 program: Calculator when the 1st Jbutton(Calculator button) clicked ?
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Mar 9, 2015
I am trying to send a JPanel object to the server. While doing so I get the error -
java.io.NotSerializableException: javax.swing.filechooser.WindowsFileSystemView
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)
[code]....
How to fix this error?
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May 2, 2015
I would like a small box to be able to enter a contacts information and I started with building it thru netbeans. Now I am thinking I should start from scratch so I understand everything. What should I do? I am having trouble making the buttons at the bottom work. All I would like to be able to do is setFrameVisible(false); but I can't seem to be able to do that without loosing the whole project not just the frame I am working on.
The buttons I am referencing are the Cancel & Accept
public class pa4GUI extends javax.swing.JFrame
{
String ph;
String ln;
String fn;
String em;
String or;
[code]....
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Dec 13, 2014
I am a beginner with Java. I have never used SWING before but I have to use it now and I am clueless. I don't know if what I am doing is right.I need to create a simple calculator. My problem is getting the buttons the user clicks to appear in a text field. I know I haven't added the =/*- buttons yet.
I have left actionPerformed practically blank, what to put in ?
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
* Created by IntelliJ IDEA.
* Date: 11/12/2014
* Changing Face Program.
*/
public class Calc extends JFrame implements ActionListener
[code]...
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Aug 5, 2014
I'm trying to implement CSS in Java via a JEditorPane and an HTMLEditorKit. The CSS is included below. It *should* create a container with one on the left, small, and one on the right, large. It works flawlessly on JSFiddle [URL] ...., but on Java, it won't put the two divs next to each other. Is this a problem in Java/Netbeans or is it my problem? It creates the divs, but beneath each other. The JEditorPane is wide enough for all of them to fit.
Coding:
Java:
private void loadBulletins() {
//<editor-fold defaultstate="collapsed" desc="HTML/CSS Script">
String eBullStyles = "#divMsgs{ "
+ "height: 99px; "
+ "margin: auto; "
+ "background-color: #3399FF; "
[code]....
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Sep 7, 2014
I am developing an application using Java Swing on Netbeans using Java DB, In which i want to create a form using Jtextfields & JComboBox.
I already added data in the JcomboBox to select. I already create a database and table for this application. Now i want to insert the data in Jtextfield and selection of Jcombobox to insert into the table i designed for it. How to link the form with the table and insert the data of form in table...
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Oct 21, 2014
I was using jdic api for the embedded browser in my java swing application but its not working good anymore so i want to use a better reliable and of course free api ..
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Apr 19, 2014
I have a jFrame and a Java Class. Now i have a path of image in my jFrame which I want to display in java class(Crop2). I created an object in jFrame
Crop2 d=new Crop2();
and then I'm trying to send the data to the class file but it is not working.
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Jul 5, 2014
i have problem with the following two java classes, driver class Reservations and Room class. When i run, it just show blank frame, tell me where i gone wrong.
import javax.swing.JOptionPane;
import java.awt.*;
import java.awt.event.*;
public class Reservations extends Frame implements ActionListener {
Color lightRed=new Color(255,90,90);
Color lightGreen=new Color(140,215,40);
Rooms room=new Rooms(5,3);
[code]...
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Sep 27, 2014
So i'm using Netbeans and have created this template for the program i want to create. Basically what I want to do is enter a time and date in 24hr format including seconds and the date of start and end time and have the program calculate the time difference between Tool launch and tool Receive that takes into factor the Launch and Receive Dates for a total of hh:mm:ss duration. I don't know how to combine both those factors output one number in a total number of hours Duration. I'm also having problems linking the ODO (odometer) which the formula would basically be time/ODO (or distance in feet) = x.x ft/sec format.
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates and open the template in the editor.
*/
public class NewJFrame extends javax.swing.JFrame {
/**
* Creates new form NewJFrame
*/
public NewJFrame() {
initComponents();
[Code] .....
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Feb 22, 2014
I have a problem with slider which i want to create jlabels in a panel by sliding the slider and get the value but the jlabel doesn't show in jpanel. Below is the code :
JPanel PanelBoxes;
JPanel panel;
JLabel c;
public static void main(String[] args){
DividePanel div = new DividePanel();
div.go();
[Code] ....
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Jun 24, 2014
I am in the progress of updating my code and re-testing after switching from Java 6 to Java 7. When I open multiple JInternalFrames in my application under java 6 I am used to closing the top most internal frame and having the frame immediately under it become the next active frame. When I run the same code under Java 7 I see a different behaviour in as much as when I close the last frame I opened, the next one to become active is the first one.
To illustrate this another way, lets say I open 5 internal frames, 1,2,3,4 & 5
In java 6 when I close frame 5, frame 4 becomes the active frame.
In java 7 when I close frame 5, frame 1 becomes the active frame.
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Feb 21, 2014
Following code I use to run or Launch another application
try {
Runtime.getRuntime().exec("rundll32 url.dll, FileProtocolHandler " + "Path of Application's EXE File");
} catch (Exception e) {
JOptionPane.showMessageDialog(null, e, null, JOptionPane.ERROR_MESSAGE);
}
if the above code is to launch another application using java then how can I close/exit the same(another) application using java code once I press the exit button of my java app.
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Apr 26, 2014
Here is an example of a GUI. Is it possible to make this kind of a thing using Java Swing? Is it possible to have a picture on the entire background of the JFrame, and then other Swing components like buttons, labels etc. sitting on it?Is it possible to have action listeners behind pictures? In other words, they will behave like buttons: the user clicks on them and they do something.
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Apr 8, 2014
How to put text box in Web form in Java swing page
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Mar 8, 2014
With a simple "Hello World" application, once the println is executed the application exits and the process goes away.
If a simple Frame application is executed, the Frame is displayed, the println is executed but the application does not exit.
public class Frame3 extends JFrame
{
Frame3() {
setBounds(100,100,300,100);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public static void main(String args[]) {
new Frame3();
System.out.println("You are here");
}
}
It isn't that Java is aware an object exists because if I create a basic non-swing, non-gui object it will exit right after the println.
Q1. What is it that causes Java NOT to exit after creating the JFrame?
Q2. What type of object(s) when created will cause the application to continue running?
Q3. What would I do if I wanted the println statement to be executed only after the JFrame was closed?
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May 21, 2014
I got a project at my university , and we are working with JBoss with the free version WildFly .And also with Java EE.
Now the application is a simple game of Battle Ships or sinking ships to be honest i am not sure as to how the game is actually called.
Registering a user and saving his or her information is not hard using a Stateless java bean , to save the data in the database.
I have a Stateful java bean for every user , the bean is created on the server side after the user succeeds in logging in to the game.
This bean is used mainly for sending an invite from one user to another , to log out the user and everything else that is needed for the user.
The main problem that i encountered here is that JBoss dose not let me have a reference on my frame inside of the bean.
This makes things hard because i would need to use a Timer to ask the bean every second or so if there is an invite from someone , and i would need to save all of the invites .
This was the only thing i could think of .And also implementing the game it self , the communication between users would be complicated more so than i think its needed.
Then my professor said that i could make a service on the clients side in witch i would have a reference of the JFrame , and i could send this service to the java bean and using this service i could get access to the JFrame making things faster.
This would make things a lot easier.For the invite and for the game itself too.
My professor explained that JBoss or WildFly is based on RMI , and he said also that i would need to set up the registry on the server side .But i got lost because i was not sure as to what should i search for .
We are using an older version of WildFly not the newest but one version older , CR1 i think.
And we are also using JPA in the Dynamic web project , server .
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Jul 28, 2014
my web browser isn't displaying any web page. When I create the method editorPane.setPage(), it takes forever (about 20 seconds) to show nothing. It'll load the web browser after the 20 seconds of waiting. Here is my code:
public class Browser extends JInternalFrame {
/**
*
*/
private static final long serialVersionUID = 4589041456161585394L;
public Browser() {
super("Browser", true, true);
this.setLayout(new BorderLayout());
this.setVisible(true);
this.setSize(Desktop.getSingletonInstance().getWidth(), Desktop.getSingletonInstance().getHeight());
[code]....
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