jpanel

Why is the UI not showing up in my code below: public class GUI extends JPanel{ public GUI(String name, String address, List<String> reviews, Icon icon){ setSize(600,600); setLayout(new BorderLayout()); JLabel iconLabel = new JLabel(icon); JLabel nameLabel = new JLabel(name); JLabel addressLabel = new JLabel(address); JPanel southReviewPanel = new JPanel(); southReviewPanel.setLayout(new BoxLayout(southReviewPanel, BoxLayout.Y_AXIS)); for (String review: reviews) { southReviewPanel.add(new JTextArea(review)); } add(southReviewPanel); add(iconLabel, BorderLayout.WEST); JPanel northPane = new

Hi I have a JFrame and there are two JPanels on top of it. My intention is to draw on the JPanels. Can anyone please share any Java code? All the JComponents ( of which JPanel inherits from ) have a paintComponent(Graphics g ) method that you can override. Basically... oh.. well, I think this would be more appropiate: http://java.sun.com/developer/technicalArticles/GUI/java2d/java2dpart1.html Naive sample: Source code: import javax.swing.*; import java.awt.*; import java.awt.geom.*; public class X { public static void main( String [] args ) { JFrame frame = new JFrame(); frame.add( new JPanel(

I have a Java program that creates a JFrame, a JPanel, and several JTextAreas. I set the text of the JTextAreas and then add them to the JPanel. When the program loads, I only see the empty JFrame. However, if I maximize, or change the size of the program window, the JTextAreas, and their respective texts appear on the screen. How can I correct this so that the program loads, with the text areas populated, without the need to mess with the window? My apologies in advance for being a Swing noob. My guess: You need to call setVisible(true) on the JFrame after adding all components to it. Next

MainFrame.java -JFrame public MainFrame() { initComponents(); Letters pl = new Letters(this); this.setContentPane(pl); this.setTitle("Preset Lessons"); this.pack(); } Letters.java -JPanel public Letters(JFrame frame) { initComponents(); JLabel label = new JLabel(); label.setText("Sample"); this.add(label); } if initComponents() in Letters.java is deleted thats the only time the JLabel will show up. How can I put the new JLabel to my existing JPanel? Contents of Letters.java's initComponents(); if I removed the iniComponents in the constructor it will create the JLabel. private void

I have following code: package hra; import java.awt.Color; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JFrame; import static javax.swing.JFrame.EXIT_ON_CLOSE; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class HerniPole extends JPanel implements KeyListener { public int velikostPole; HerniPole(int velikostPole) { this.velikostPole = velikostPole; Color background = new Color(187, 173, 163); EventQueue.invokeLater(new Runnable() {

I am trying to use an image I made in photoshop as the background for my GUI. How do I do that? also I made some images I want to display in the button backgrounds after the action is performed... For the JButton, use this: JButton button = new JButton("Button Name", new ImageIcon("foo.png"); The Panel is a bit more interesting. This is a good method, though: ImagePanel panel = new ImagePanel(new ImageIcon("foo.png").getImage()); 来源： https://stackoverflow.com/questions/8373006/using-an-image-for-the-background-of-a-jpanel-and-jbutton