jpanel

I have JPanel which contain a component imageWindow(object of this ) now i want to put a label tag in the center of this imagewindow but i am not able to do so? JPanel imagePanel = new JPanel(); imagePanel.setLayout(new GridBagLayout()); imagePanel.add(ic); //ic is imageWindow obj JLabel l1=new JLabel("First Label."); JPanel example =new JPanel(); example.add(l1); imagePanel.add(example); what i am doing wrong here is screenshow i need to put the label here. i want to put the label at the center but it always coming in the right side what i am doing wrong? You could display the image in a

I'm very new to Java Swing and Java overall (my class just got finished on Scanner and basics). I was taught only Swing basics which is "What is a JFrame..etc" and I'm stuck on how to layout or position things. On the image is the layout I desired and could anyone help and teach me how to code it? JFrame with, 5 JPanel components?(4 columns and the order form below) Additionally, when clicking the "CONFIRM" button, I would want a new window to popup. How would I be able to link multiple windows? A common strategy to solve complex computing tasks, is to break them into small, well defined

I am trying to accomplish the above functionality, and am having little success. I am using GridLayout with 2 columns and 2 rows to show the user a puzzle-like game, where there are 4 (200x200 pixel) JPanels (3 colored, 1 default bgColor) which fill the whole contentPane. Clicking on a colored panel resolves in an assessment if the panel is next to the gray panel. If so, they should swap. I have accomplished every step to the last one, where they swap. Here's the code: public class MainClass extends JFrame { //Generated private static final long serialVersionUID = 4710628273679698058L; private

Here is the code: import javax.swing.SwingUtilities; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JLabel; import java.awt.event.*; import java.awt.*; public class GameWindow { private String[] players; private JFrame frame; // Constructor. public GameWindow(String[] players) { this.players = players; } // Start the window in the EDT. public void start() { SwingUtilities.invokeLater(new Runnable() { public void run() { showWindow(); controller.start(); } }); } // Defines the general properties of and starts the window. public void showWindow() { frame = new JFrame(

I only want a method to activate if the pixel that is clicked is white. How would I implement this? Trying to look for a method that returns the colour at a coord, but I can't find one. Depends. If you have got a BufferedImage (or some other Image) you can use its getRGB methods (or getRaster().getPixel ). If you haven't, you can use JPanel's createImage methods and use the returned image to get the pixel data. 来源： https://stackoverflow.com/questions/2623351/getting-the-colour-of-where-you-have-clicked-on-a-jpanel