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POa JPanel problem
 

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    <p>i am writing up a project just as part of my experiments... (for everyone that has already help with my other questions, thank you for very much.)</p> <p>Alright i have one file that already works.. both of my source files compiled correctly i have two jpanel's that are overridden so i can change their paintcomponents. One i use as a sort of background image for the application this is the one that works. the problem is with my second panel i am trying to add, for some reason when i start the application, it is either not showing above the first JPanel or it is not showing at all..</p> <p>here is my code..</p> <pre><code>import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.net.*; import java.util.*; import org.jdom.*; import org.jdom.input.*; import org.jdom.output.*; public class COS extends JPanel implements ActionListener{ static JFrame f=new JFrame(); static Image bgImage=null; static String message=""; JButton chbg=new JButton("change background"); public COS(){ chbg.setBounds(10,10,150,25); chbg.addActionListener(this); add(chbg); } public void paintComponent(Graphics g){ if(bgImage!=null){ g.drawImage(bgImage,0,0,this); } else{ g.drawString(message,40,40); } } public static void loadbg(){ try{ String xmlpath="background.xml"; SAXBuilder builder=new SAXBuilder(); Document xdoc=builder.build(xmlpath); String fimg=""; fimg=xdoc.getRootElement().getChild("bgimage").getText(); getFileImage(fimg); } catch(Exception e){ message="File load failed: "+e.getMessage(); } } public static void getFileImage(String filein) throws IOException, InterruptedException{ FileInputStream in=new FileInputStream(filein); byte[] b=new byte[in.available()]; in.read(b); in.close(); bgImage=Toolkit.getDefaultToolkit().createImage(b); } public void actionPerformed(ActionEvent e){ Object source=e.getSource(); JFileChooser jfc=new JFileChooser(); if(source==chbg){ int returnVal=jfc.showOpenDialog(null); if(returnVal==JFileChooser.APPROVE_OPTION){ File file=jfc.getSelectedFile(); String fileone=file.getName(); changebg(fileone); } } } public void changebg(String filein){ try{ getFileImage(filein); saveDefaultImage(filein); repaint(); } catch(IOException e){ } catch(InterruptedException ie){ } } public void saveDefaultImage(String filein){ try{ String xmlpath="background.xml"; SAXBuilder builder=new SAXBuilder(); Document xdoc=builder.build(xmlpath); xdoc.getRootElement().removeChild("bgimage"); xdoc.getRootElement().addContent(new Element("bgimage").setText(filein)); FileOutputStream fos=new FileOutputStream(xmlpath); XMLOutputter out=new XMLOutputter(); out.output(xdoc, fos); fos.flush(); fos.close(); } catch(Exception e){ } } public static void main(String[] args){ COS newcos=new COS(); COSmp cmp=new COSmp(); cmp.setBounds(720,0,25,600); cmp.setLayout(null); loadbg(); f.setSize(825,640); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.getContentPane().setLayout(null); f.setLayout(null); newcos.setBounds(5,5,800,600); newcos.setOpaque(false); newcos.setLayout(null); f.setLocation(10,5); f.getContentPane().add(newcos); f.add(cmp); f.setVisible(true); } }</code></pre> <p>my second source file..</p> <pre><code>import javax.swing.*; import java.awt.*; import java.awt.event.*; import org.jdom.*; import org.jdom.input.*; import org.jdom.output.*; public class COSmp extends JPanel implements ActionListener{ public COSmp(){ JLabel whatisthis=new JLabel("I am going to be a start menu i think"); add(whatisthis); } public void actionPerformed(ActionEvent e){ } } </code></pre> <p>the second one is very simple but all of it's methods are in the second the setbounds, add, etc..</p> <p>i cannot seem to get it to display, even if i set the first one "newcos" is what i call the first one, to not display.. </p> <p>could someone help me? if i didn't explain well enough please tell me and i will try again.</p> <p>also i just thought about this, the xml file, background.xml</p> <pre><code> background2.png </code></pre>
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