Thread: A Background Image

Hello,

Trying to get my background image to show up but it is not, can anyone see what I may be doing wrong? The image is in the right spot and all is spelled correctly on the path and image.

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.*;
 
 
public class Bongo extends JFrame{
 
    public static JFrame MainWindow = new JFrame();
 
    public static JFrame LogInWindow = new JFrame();
    public static JTextField TF_USERNAMEBOX = new JTextField(20);
    private static JButton B_ENTER = new JButton("ENTER");
    private static JLabel L_ENTERUSERNAME = new JLabel();
    private static JPanel P_LOGIN = new JPanel();
    private static JPanel panel = new JPanel();
 
    private static Image im = Toolkit.getDefaultToolkit().getImage("C:\\OtherStuff\\BongoBack.png");
    private static ImageIcon BG = new ImageIcon(im);
 
    public static void main(String[] args) {
 
        BuildMainWindow();
        BuildLogInWindow();
 
        Bongo b = new Bongo();
 
    }
 
    public static void BuildMainWindow() {
 
		MainWindow.setTitle("Bongo");
		MainWindow.setSize(1000,700);
		MainWindow.setLocation(150,100);
		MainWindow.setResizable(false);
                MainWindow.setVisible(true);           
 
    }
 
    public static void BuildLogInWindow() {
 
            LogInWindow.setTitle("Whats Your Name?");
            LogInWindow.setSize(400,100);
            LogInWindow.setLocation(250,200);
            LogInWindow.setResizable(false);
            P_LOGIN = new JPanel();
            P_LOGIN.add(L_ENTERUSERNAME);
            P_LOGIN.add(TF_USERNAMEBOX);
            P_LOGIN.add(B_ENTER);
            LogInWindow.add(P_LOGIN);
 
           // Login_Action();
            LogInWindow.setVisible(true);
 
    }
 
    public void paint(Graphics g) {  
 
        g.drawImage(im,0,0,this);  
 
    }     
 
    }

Thank you in advance..

You have 3 JFrames here. Which JFrame are you trying to add the image to?

MainWindow

Okay, and where is the code for displaying a background image in MainWindow? (which should be mainWindow according to the standard naming conventions, by the way)

Well, I created the image with this:

private static Image im = Toolkit.getDefaultToolkit().getImage("C:\\OtherStuff\\BingoBack.png");

Then, what I THOUGHT I was trying to do was call to the paint method which would put it on the screen at x=0,y=0 from here:

    public void paint(Graphics g) {  
 
        g.drawImage(im,0,0,this);  
 
    }

But apperently I am not correct on my assumptions somewhere..

I want to be able to put all my images on the screen by x and y coordinates, so this is why I was trying to use paint method as appose to panels.

As for Mainmain.. I know common prcatice is to do mainWindow but since I do not see myself getting any programming jobs with Sun anytime soon, I find it a bit easier to for me read when i captiolize all first letters...

Originally Posted by Randor

As for Mainmain.. I know common prcatice is to do mainWindow but since I do not see myself getting any programming jobs with Sun anytime soon, I find it a bit easier to for me read when i captiolize all first letters...

That might be easier for you to read, but it's much harder for us to read. It might seem like a small thing, but it goes a long way to making it easier for us to help you.

Anyway, you're extending JFrame and painting an image on it, but you never actually show that JFrame. You show some other JFrames that have the default behavior (no image) instead.

I would suggest you extend JPanel and override paintComponent() instead. Then just use that type of JPanel as the content pane of any JFrames you want to have a background image.