importing a picture from a file and printing it out into a window

[tenniscrazy]

I need to learn how to do this..i know it's pretty basic and ply easy, but i have been trying for a couple days now and have gotten nowhere. As far as i can tell there are a number of ways to import pictures into a program. I found one that looks relatively simple, and i understand it well enuf. Could someone please tell me what i did wrong to implement it plz

code:

import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.awt.image.*;   public class GridSnap extends JFrame {     int vpw = 800;//viewport width     int vph = 500;//viewport height     int gw = 25;//grid width     int gh = 25;//grid height       BufferedImage buf;//double buffer     JPanel vp;//viewport for display     JLabel status;//status bar     int npx, npy;//current snap coords         BufferedImage img = null;{         try {             img = ImageIO.read(new File("BG1.jpg"));         } catch (IOException e) {     } }         public GridSnap() {         super("Grid Snapping");       status = new JLabel("Status bar");       vp = new JPanel();     vp.setPreferredSize(new Dimension(vpw, vph));     vp.addMouseMotionListener(new MouseMotionAdapter(){         public void mouseMoved(MouseEvent e) {//get the nearest snap point             int x = e.getX(), y = e.getY();             int mx = x % gw, my = y % gh;             npx = x - mx;                         npy = y - my;                     //    if (mx<gw/2) npx = x - mx;        //     else npx = x + (gw-mx);           //    if (my<gh/2) npy = y - my;         //    else npy = y + (gh-my);               status.setText(npx+", "+npy);             repaint();         }     });     //buffer     buf = new BufferedImage(vpw, vph, BufferedImage.TYPE_INT_RGB);       add(vp);     add(status, BorderLayout.SOUTH);     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     pack();     setVisible(true); } public void paint (Graphics notused) {     Graphics2D g = (Graphics2D)buf.createGraphics();         boolean Graphics.drawImage(Image img, 0, 0,ImageObserver observer);       g.setColor(Color.DARK_GRAY);     //grid vertical lines     for (int i=gw;i<vpw;i+=gw) {         g.drawLine(i, 0, i, vph);         }         //grid horizontal lines         for (int j=gh;j<vph;j+=gh) {             g.drawLine(0, j, vpw, j);         }         //show the snapped point         g.setColor(Color.WHITE);         if (npx>=0 && npy>=0 && npx<=vpw && npy<=vph) {             g.drawRect(npx, npy, gw, gh);         }           vp.getGraphics().drawImage(buf, 0, 0, Color.BLACK, null);    }     public static void main(String args[]) {         new GridSnap();     } }

[HellblazerX]

Shouldn't this:

code:

boolean Graphics.drawImage(Image img, 0, 0,ImageObserver observer);

be this:

code:

g.drawImage (img, 0, 0, null);

[tenniscrazy]

thanks, that works.

but this part of the code keeps giving me various errors

code:

BufferedImage img;     try {         img = ImageIO.read (new File ("BG1.jpg"));          catch (IOException e) {     } }

it says illigal start of type for the try line

it also gives an error for the command 'File'

I have tried various things but all the stuff i found said it should be exactly like this

[HellblazerX]

You need to import the ImageIO and File classes:

code:

import javax.imageio; import java.io.File;

[tenniscrazy]

AH!!!

i got the first one but i had no idea about the second one. OK it should work now...hopefully

[tenniscrazy]

so i found code that works in the java almanac.

It compiles fine, but when i try to run it it the window comes up and it doesn't print the picture, it just compies the image that is behind it on the monitor. Could this be a problem with the computer i'm using, or is it something thats wrong with the code again?

[HellblazerX]

You're drawing your picture before you draw your background, so your background is covering up your picture. Just reverse the order and you should be fine.

[tenniscrazy]

my picture is my background.

what i meant is that its copying the background of my desktop and putting it in the window, so it's like see-through exept when you move the window around it keeps the picture of the desktop it started with.

Like when a computer is being laggy and you try and open a minimized window and it does the same thing

Edit: nevermind i got it to work