What is the difference between a lawer and a judge?

Question

I think that they both solve crimes, or fights, or crimes, but there should be a difference between them.

And if you want to become a lawer you should study law, and you want to become a judge you should study___________?

Answer 1

A lawyers argues one side of the case or another - he either prosecutes or defends.

A Judge makes the final decisions on the case - he's the equivalence of a jury.

Judges are appointed or elected, usually from lawyers that have had a lot of experience.  There's no class you can study for the position.

Answer 2

They are both lawyers and have studied law. A judge is either elected or appointed.

Answer 3

A judge has been elected or appointed to the office is also an attorney.