Thread: Paintwindow moving picture

PaintWindow pw = new PaintWindow();
                        Random rand = new Random();
                        ImageIcon image = new ImageIcon("C:/Users/Ghostkilla/Desktop/gubbe.jpg");
                        setWidth(pw.getBackgroundWidth());
                        int height = pw.getBackgroundHeight();
                        int dx = -3;
                        int dy = 0;
                        int x = 250;
                        int y = rand.nextInt(height-100);  
 
 
                        while(true) {
                                pw.showImage(image, x, y);
                                PaintWindow.pause(20);
                                x += dx;
                                y += dy;
                                if(x<0) {
                                        dx = -dx;
                                        dx = -dx;

If you run this code it will move a picture from right to left and hit the left wall and then go to right again leaving the window (It stops there). I want to make so it hits left and then right wall continuesly till someones close the window. So basically im using a for loop to make it go left right all the time and i need help.


Also I dont know how to make so the picture moves from bottomleftcorner to toprightcorner diagonally without leaving the window.

Can you make a small, complete program that compiles, executes and shows the problem?

What package is the PaintWindow class in? I don't recognize it as part of the Java SE packages.

how to make so the picture moves from bottomleftcorner to toprightcorner diagonally

Take a piece of paper and draw the picture in the various locations in the window and note the relationship between the x,y location of the image and its width and height when it is touching on the sides of the window.