JComponent « JPanel « Java Swing Q&A

1. Java get JPanel Components    stackoverflow.com

I have a JPanel full of JTextFields...

for (int i=0; i<maxPoints; i++) {
    JTextField textField = new JTextField();
    points.add(textField);
}

2. Adding a Web Browser in a JFrame/JPanel/JComponent in Java    stackoverflow.com

I'm doing a Java application that requires to use a web browser inside the application. I have seen some applications doing this, such as RSS readers when clicking in a feed in ...

3. Custom JComponent not displaying in Custom JPanel    stackoverflow.com

I've tried the add() method but nothing is displayed when I try to add Test to GraphicsTest. How should I be adding it? Can someone show me? I've included the code ...

4. Java Swing - How to access a JComponent of one JPanel from other JPanel, both added to the JFrame?    stackoverflow.com

I am developing a Java Desktop Application with GUI implemented in SWING. I hava a JFrame. I have added three JPanels on that. One JPanel panel1 has a Start Button. Now I ...

5. Components don't show in custom JPanel/JComponent    stackoverflow.com

I've created a custom swing component. I can see it (the grid from the paint method is drawn), but the buttons that are added (verified by println) aren't shown. What am ...

6. Displaying a JComponent inside a JPanel on a JFrame    stackoverflow.com

I am failing to display a JComponent inside a JPanel on a JFrame. The following does not work.

JComponent component = ...
panel.add(component, BorderLayout.CENTER);
frame.add(panel, BorderLayout.CENTER);

7. Prevent Java from repainting the content of a JPanel while updating    stackoverflow.com

I have a JPanel which contains a lot of child components. While updating\adding new components to the parent JPanel I'd like to prevent it from repainting, how can this achieved?

8. Java wait for component to be painted    stackoverflow.com

I'm trying to create a program in Java that would display set of images one after another adjusting the size of the frame for each one. I'm extending JPanel to display an ...

9. I want to have a JPanel with both a Java 2d Graphics Section and a JComponent Section at the bottom    stackoverflow.com

This is for a tower defense game and i want the top section to be the map and objects drawn in 300x200 panel and the bottom be a 300x100 panel with ...

10. Component in JPanel in JFrame    stackoverflow.com

I made my own Component, named it 'hi' and put it in a JPanel and then put that JPanel into a JFrame, but nothing shows up. I made a border around ...

11. Understanding Java GUI development, managing and setting JComponents    stackoverflow.com

I wanted to have a discussion on Java GUIs, right now, I'm still in school and I've done light gui development for class.(We briefly covered it.) Plain and simple, I couldn't do ...

12. Why doesn't instanceof work with JPanel and JComponent?    stackoverflow.com

I feel like I'm missing something blindingly obvious here, so low hanging fruit for a Java guru: I have code that looks like this:

private static void myFunc(JComponent c) {
    ...

13. JPanel vs. JComponent    coderanch.com

import java.awt.*; import javax.swing.*; public class PanelTest { public static void main(String[] args) { CustomComponent cc = new CustomComponent(); cc.setBackground(Color.blue); JPanel lo = new JPanel(); System.out.println("panel isOpaque = " + lo.isOpaque() + "\n" + "background color = " + lo.getBackground() + "\n" + "layout = " + lo.getLayout()); lo.setBackground(Color.red); JPanel panel = new JPanel(new GridBagLayout()); GridBagConstraints gbc = new GridBagConstraints(); gbc.weightx ...

14. What's difference between JPanel and JComponent?    coderanch.com

15. Adding a JComponent and a JPanel to a JFrame?    forums.oracle.com

JFrame has a setContentPane method, which will accept one Container as a parameter. If you want to display anything on the JFrame, it has to be contained in that container. You can add the 'square component' to your panel and set the panel as the JFrame's contentPane, or you can create a new panel, set it as a JFrame's contentPane and ...

16. JPanel and a generic JComponent problem; I add JComponent to JPanel and ...    forums.oracle.com

/** * Receives a rectangle from the squares array list collection. * When the user double-clicks in the component window, 2D point is * compared to each rectangle in the squares collection to determine if * there was a rectangle at the mouse cursor. * * If there was not, then 's' is null and execution of the program * continues ...