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import java.awt.*; public class Example4 extends BufferedApplet { int width = 0, height = 0, x, y; public void render(Graphics g) { if (width == 0) { width = bounds().width; height = bounds().height; x = width / 2; y = height / 2; } // DRAW A CLEAR WHITE BACKGROUND g.setColor(Color.white); g.fillRect(0, 0, width, height); // DRAW A BLUE DISK AT x,y g.setColor(Color.blue); g.fillOval(x - 20, y - 20, 40, 40); } public boolean mouseDown(Event e, int x, int y) { setXY(x, y); return true; } public boolean mouseDrag(Event e, int x, int y) { setXY(x, y); return true; } void setXY(int x, int y) { this.x = x; this.y = y; damage = true; } }