class diagram

Hi,
I am not much exposed to UML, now i have to prep a class diagram as part of my job. I will be much grateful if any one help me out in this.
I have three classes in a file.
first class has main method in which i started a thread.
second class has the run method in which i created instane for the third class and called the methods.
and third has methods which actually do my business.
Now I have to prepare the class diagram for this actually we are going in a reverse way after finishing all the coding we are asked to submit the class diagram.
thanks in advance

What product are you using for drawing UML diagrams?

./pope

nope, We don't have any tool to design we have to draw in word only

I recommend you look for ArgoUML (free and very well done). There you can draw the diagram and then export it to a picture to include it in your document.
In order to learn about UML you can check the UML spec (a heavy reading

) and google for UML tutorial.

Here are some links:

http://odl-skopje.etf.ukim.edu.mk/uml-help/

http://bdn.borland.com/article/0,1410,31863,00.html

./pope

Visio is also a decent UML tool, if you happen to have it installed.
Otherwise, I'd also recommend looking into UMLet and Visual Paradigm.

Afaik Visio requires some additional stencils for UML. There is a free available set advertised on Martin Fowler's site.

./pope

Originally posted by Ali Pope:
Afaik Visio requires some additional stencils for UML. There is a free available set advertised on Martin Fowler's site.

./pope

http://www.phruby.com/stencildownload.html

Indeed Pradeep that's what I was refering to. thanks for pointing the link.

./pope

ObjectMentor has also made their Visio stencil available somewhere. I'm sure Google will find it in no time.