Creating objects/shapes and printing to a swing??

Question

Hey, if anyone has a few example files that draws a rectangle, oval, square, and a circle then they can be animated by being moved around the screen. I have a swing that has a file, with the option to create these shapes. If anyone can help please, thanks. I am also trying to call the draw method from the rectangle class that i have created. here is what i have in my main file where the swing is created.
private void rectangleMenuItemActionPerformed (java.awt.event.ActionEvent evt) {
//I don't know how i would call this, so when the
//rectangle menu item is clicked it draws a rectangle to
//the screen. If anyone could help i would really
//appreciate it i also still need examples of the shapes,
//thanks again!!!!!
mdawg

Answer 1

Hi,
You can use draw methods on Graphics Class. like
(guessing myPanel is your canvas)
private void rectangleMenuItemActionPerformed (java.awt.event.ActionEvent evt) {
Graphics g = myPanel.getGraphics();
g.drawRect(x, y, width, height);
But the problem with this approach is if myPanel is repainted(when resized etc.) it will clear the panel.
The best way is to extend JPanel and overrice paint method. Example:
public void paint(Graphics g)
if(rectangle)
g.drawRect(...);
else if(circle)
g.drawCircle(..);
set those flags(rectangle, circle,...) on your menu actions.
Hope this helps