Displaying images in Java

[tommyny04]

I'm kinda new to programming but I usually figure things out by myself but I need help with this. I'm trying to display an image in the Center region of a JFrame and other icons/button in the other regions. So far, I have this:

[code=java]
public class RiskFrame extends JFrame implements ActionListener, MouseListener{

private BufferedImage bImage;
private Image image;

private JPanel topPanel = new JPanel();
private JPanel bottomPanel = new JPanel();
private JPanel centerPanel = new JPanel();
private JPanel rightPanel = new JPanel();

private JButton saveButton = new JButton("Save", new ImageIcon("save .jpg"));
private JButton openButton = new JButton("Open", new ImageIcon("Open Icon.gif"));
private static JButton newButton = new JButton("New");
private JButton addTerritory = new JButton("Add New");
private JButton removeTerritory = new JButton(" Remove");

private JLabel goodStatus = new JLabel();
private JLabel badStatus = new JLabel();

private JPanel territoryPanel = new JPanel();
private JLabel territoryInfo = new JLabel("Territo ry Info");
private JLabel country = new JLabel("Country : ");
private JTextField countryField = new JTextField(20);
private JPanel countryComp = new JPanel();
private JLabel continent = new JLabel("Contine nt: ");
private JTextField continentField = new JTextField(20);
private JPanel continentComp = new JPanel();
private JLabel cardType = new JLabel("Card Type: ");
private JTextField cardField = new JTextField(20);
private JPanel cardComp = new JPanel();
private JLabel redColor = new JLabel("R Color #: ");
private JTextField redColorField = new JTextField(20);
private JPanel redComp = new JPanel();
private JLabel greenColor = new JLabel("G Color #: ");
private JTextField greenColorField = new JTextField(20);
private JPanel greenComp = new JPanel();
private JLabel blueColor = new JLabel("B Color #: ");
private JTextField blueColorField = new JTextField(20);
private JPanel blueComp = new JPanel();

public RiskFrame(){
layoutGUI();
centerPanel.add MouseListener(t his);
}



public void layoutGUI(){
topPanel.add(ne wButton);
topPanel.add(op enButton);
topPanel.add(sa veButton);
topPanel.add(ad dTerritory);
topPanel.add(re moveTerritory);
bottomPanel.add (goodStatus);

rightPanel.setL ayout(new BorderLayout()) ;
rightPanel.add( territoryInfo, BorderLayout.NO RTH);
territoryPanel. setLayout(new BoxLayout(terri toryPanel, BoxLayout.Y_AXI S));
territoryPanel. setAlignmentX(L EFT_ALIGNMENT);
territoryPanel. add(Box.createR igidArea(new Dimension(5,5)) );

countryComp.add (country);
countryComp.add (countryField);
continentComp.a dd(continent);
continentComp.a dd(continentFie ld);
cardComp.add(ca rdType);
cardComp.add(ca rdField);
redComp.add(red Color);
redComp.add(red ColorField);
blueComp.add(bl ueColor);
blueComp.add(bl ueColorField);
greenComp.add(g reenColor);
greenComp.add(g reenColorField) ;

territoryPanel. add(countryComp );
territoryPanel. add(continentCo mp);
territoryPanel. add(cardComp);
territoryPanel. add(redComp);
territoryPanel. add(greenComp);
territoryPanel. add(blueComp);

rightPanel.add( territoryPanel, BorderLayout.CE NTER);
this.add(topPan el, BorderLayout.NO RTH);
this.add(rightP anel, BorderLayout.EA ST);
this.add(center Panel, BorderLayout.CE NTER);
this.add(bottom Panel, BorderLayout.SO UTH);

newButton.addAc tionListener(th is);
openButton.addA ctionListener(t his);
saveButton.addA ctionListener(t his);
addTerritory.ad dActionListener (this);
removeTerritory .addActionListe ner(this);
}



public void actionPerformed (ActionEvent e){
String command = e.getActionComm and();
if (command.equals ("New")){
newGame();
}
else if (command.equals ("Save")){
save();
}
else if (command.equals ("Open")){
open();
}
}

public void newGame(){

String inputValue = JOptionPane.sho wInputDialog("P lease enter the name of the map you would like to use. (Map must already be saved in directory)");

Icon icon = new ImageIcon(input Value + ".png");
final JLabel imageLabel = new JLabel(icon);
centerPanel.add (imageLabel);
repaint();

try{
File file = new File(inputValue + ".board");
boolean success = file.createNewF ile();
if (success){}
else {
JOptionPane.sho wMessageDialog( null, "File already exists. Please try again");
}
}
catch (IOException e){}
}

public void open(){

String inputValue = JOptionPane.sho wInputDialog("P lease enter the name of the board file you would like to use. (File must already be saved in directory)");

try {
FileReader fr = new FileReader(inpu tValue + ".board");
BufferedReader br = new BufferedReader( fr);
}
catch(IOExcepti on e){}

JLabel imageLabel = new JLabel();
ImageIcon icon = new ImageIcon(input Value + ".png");
imageLabel.setI con(icon);
centerPanel.add (imageLabel);
repaint();
}

public void getColor(int x, int y){
Raster raster = bImage.getRaste r();
Object data = raster.getDataE lements(x, y, null);
ColorModel model = bImage.getColor Model();
int rgb = model.getRGB(da ta);
Color color = new Color(rgb);
String pixel = color.toString( );
System.out.prin tln(pixel);

}

public void mouseClicked(Mo useEvent e) {
getColor(e.getX (), e.getY());
}

public void save(){}

public static void main(String[] args){

RiskFrame frame = new RiskFrame();
frame.setSize(8 00,800);
frame.setVisibl e(true);
frame.setDefaul tCloseOperation (JFrame.EXIT_ON _CLOSE);
}
[/code]

It's not anywhere near done but everytime I run my program, instead of the image appearing in the center region, I will have to resize the window to get the image to appear even though I call the repaint method. Also, my getColor method doesn't work. I always get a nullPointerExce ption when I try to click on the map.

Any help would be greatly appreciated. THANK YOU!!

[JosAH]

You shouldn't add these components directly to the JFrame; first grab the frame's
'contentpane' and add all the components to that container. For an explanation
read the API documentation for the JFrame class.

kind regards,

Jos