Tool for teaching Java

[finsalscollons]

Hi all.

I am a University teacher and I am giving an "Introduction to programming" course in Java.

Some time ago, I saw a tool on the Internet. The tool graphically simulated the execution of a Java program, line by line. It was a kind of IDE with the screen divided in an area for the code, an area for the variables, an area for a graphical representation of objects, an area for the heap (if I remember well).

The tool went from line to line of code, representing graphically what each line did.

I can't remember the name of this tool. I have been searching for it using Google for hours and I am desperate.

Can somebody help me? Thanks in advance,

Finsals Collons

[iluxa]

No offense, but your Google skills need improvement :D

Jeliot - is that what you mean?

[finsalscollons]

Thank you, iluxa.:):):) You are right, my Google skills need improvement:)

[erka]

perhaps you mean BlueJ?

[erka]

Greenfoot is also useful one.