File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Swing / AWT / SWT and the fly likes How to draw points in Java? Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Murach's Java Servlets and JSP this week in the Servlets forum!
JavaRanch » Java Forums » Java » Swing / AWT / SWT
Bookmark "How to draw points in Java?" Watch "How to draw points in Java?" New topic

How to draw points in Java?

George Ren
Ranch Hand

Joined: Aug 17, 2002
Posts: 58
I want to draw a point wherever in my panel, and I want to make the point visible and I can handle mouse events on it. How can I achieve this? By using Java 2D API? What classes in this API can I use?

Have a nice day

Joe Ess

Joined: Oct 29, 2001
Posts: 8834

You can use any class you want. However, you may find it most useful to extend JPanel and override it's paint method with one that draws your point via java.awt.Graphics.drawRect with a height and width of one.
Then you can make your JPanel a MouseListener and when you get a mouse click, compare the coordinates of the click with the coordinates of your point.
The Java Tutorial: Creating a GUI covers these concepts and much more.

"blabbing like a narcissistic fool with a superiority complex" ~ N.A.
[How To Ask Questions On JavaRanch]
Craig Wood
Ranch Hand

Joined: Jan 14, 2004
Posts: 1535
I agree. Here's the link:
subject: How to draw points in Java?
Similar Threads
Tree and drawing within the same panel
Graphs support in Java.
Want to add Horizontal and vertical scroll bar in my code
Graphs support in Java.
Drawing graphs for mathematical functions using Java