How do you know a variable type in java?

Question

Let\'s say I declare a variable:

String a = \"test\";

And I want to know what type it is, i.e., the output should be java.lang.String

Answer 1

I learned from the Search Engine(My English is very bad , So code...) How to get variable's type? Up's :

String str = "test";
String type = str.getClass().getName();
value: type = java.lang.String

this method :

str.getClass().getSimpleName();
value:String

now example:

Object o = 1;
o.getClass().getSimpleName();
value:Integer