Advice on graphics

[Derges]

I'm fairly new to coding so apologies if this is in the wrong place but anyway.
I've got a system (mostly) set up and need to get it to draw some simple diagrams (Lines and boxes) from data held in some Arrays.
I could really do with some advice on what I aught to be using to do this and some advice on how to go about it would be appreciated as well.

[Petr]

it's easy. You can use swing api for it and private cause this use canvas.
see java - How to make canvas with Swing? - Stack Overflow

[Derges]

Thanks for the quick response. I've had a look through the tutorials you linked and tried them out successfully.
I can get it to draw a box where I want using the drawRect() method but only when I give it the 4 values, not from my arrays. Any tips on how to feed it the data?

[camickr]

The "DrawOnComponent" example from Custom Painting Approaches « Java Tips Weblog shows you how to loop through an ArrayList to paint rectangles.