I have a custom AbstractTableModel and I would like to center all the columns by default. I know this is made using TableCellRenderer but I don’t know how to implement it in my code. Here’s my class. Is this possible / a good idea or should I stick to doing it in the class where I use the JTables …
Tag: swing
Why does paintComponent get called only on some JPanels?
I’m trying to add a background to different JPanels (henceforth they will be called Window). These Windows are classes I created and make them inherit JPanel. Then depending on the state of the program one Window is set as the content panel of the program’s JFrame. The problem comes when in some W…
Can’t Change button or panel location in Swing (Java)
I can’t change the location of Button or Panel in “setbounds” in java swing.It’s just stuck to the top. What should I change here? Should I add a “Gridlayout” to the button or something? Changing the panel location does nothing for the button. public class Main { Answer In …
java swing nullpointer exeption whilst adding buttons [duplicate]
This question already has answers here: What is a NullPointerException, and how do I fix it? (12 answers) Closed 8 months ago. solution So i was trying to do a java-swing-gui for a school project and therefor I have to add 72 Buttons (idk) to a JPanel element. I tried using a for-loop: but it didnt really wor…
Buttons not showing up in JPanel
I’m having a ton of trouble figuring out why the buttons in this won’t show? They were showing up earlier today when I test ran the program but now I’ve been stuck for 2 hours trying to get the buttons to show up again. It’s also really weird because the panel is definitely showing up …
How would I use the radio button in jswing to make a listener capable of placing an S or O in the given cell depending on what is selected?
I know I am supposed to make an action listener for each radio button and that seems pretty straightforward, but I am confused on how I would do that and then translate that to placing an S or O on the game boards given cell depending on what is selected. I think the more confusing part is being able to
Loading images/files inside jar
There are already heaps of answers to this problem. I have also tried a lot of them. I have not found a solution yet. I load some images within my project (Swing – ImageIcons). In the run dialog all of them are also displayed in my GUI. But after compiling the program can’t be started at all. The …
why all thing is stop when i’ll use while loop in MouseEntered() Function ?? In Java
My gui programme that contains (JPanel ,JFrame ,JLabel) JLabel : I Coded it To move from (0x, 0y) To (200x ,0y) Pixel by Pixel . it will start when i put the mouse on the panel called “p” ,but when i try to run this programme it’s start correctly ,but when i put my mouse on the panel all thi…
checkbox appears when button pressed, java
My code displays a texture where you can type something in and than it should appear under the label with a checkbox. What I want is that the checkbox is only there if the title is set through the textfield. I couldn’t find anything on this topic just cb.validate(); but that didn’t really help me.…
JButton text changes on its own?
The following simple code: can always reproduce the same bug (at least for my setups, which are given below). The program is supposed to change the button text, according to the text-field’s text, when the button is clicked. The problem is that the text of the button reverts/changes back to its previous…