Java Help

JamesU2005 · 17 Mar 2006 at 09:21

I need some help with a Java Novice,

What I have been trying to do for a few hours now is link a Button in a Java Apllet to draw a rectangles on the screen.

I have created a button which when pressed I would like to draw around 10 boxes in a specific area.

Thanks

happytechie · 17 Mar 2006 at 09:31

you're going to have to do a bit of work here yourself, which bit of the problem don't you know how to do?

drawing the boxes? registering the click event on the button? something else?

none of these are particularly difficult.

for the boxes have a look at the drawing classes in the API:

http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Graphics2D.html

HT

JamesU2005 · 17 Mar 2006 at 09:50

Right ok,

In the
public void init()
{

I have added

squares = new Button("Squares");
add(squares);
squares.addActionListener(this);

How do I get the button to draw when clicked, I have become confused by the Tutorials and other information on the net.

I think its to do with the

public void paint(Graphics g)
{

and
public void actionPerformed(ActionEvent event)
{

But cant for the life of me work it out.

JamesU2005 · 17 Mar 2006 at 21:21

Anyone?

MuvverRussia · 18 Mar 2006 at 19:38

have the actionlistener class (the main class that is creating the buttons needs to implement the actionListener) run the paint method each time the button is pressed (so each time the actionperformed method is ran).

Not done any java awt/2d graphics for a year or so so can't remember the code off the top of my head but this should help you a bit.

Code:

public void actionPerformed(ActionEvent e) {
//call the paint method for the graphics      }

Hope this helps.