How to check type of variable in Java?

Question

How can I check to make sure my variable is an int, array, double, etc...?

Edit: For example, how can I check that a variable is an array? Is there some function to

Answer 1

You may work with Integer instead of int, Double instead of double, etc. (such classes exists for all primitive types). Then you may use the operator instanceof, like if(var instanceof Integer){...}