@BeforeClass vs static{}

Question

I am writing some test cases using JUnit. I need to initialize some static variables which will be used for all the test cases in that class.

For this I can use eith

Answer 1

If it's both static and final then you only have one choice: static initializer.

The compiler will prevent you from writing to a final field from inside a method, static or not.

EDIT: OK, you've removed the word 'final' from your question. In that case, it makes little difference. The static initializer will run once; so will the @BeforeClass method. Just pick whichever one you think is more readable.