can the term (int) be a method as well?

Answer 1

int is a primitive type of integer numbers.
if you need to extend its methods try to use Integer class instead..
Oracle doc here: https://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html

Answer 2

Nope. int is a reserved keyword, so it can't be an identifier. It can, however, cast a variable as an integer.

Answer 3

what do you mean by method ?!!

Answer 4

Dont get confused with the term "method".
Method is just implementation of a particular action.
You can name a method, anyname besides the reserved keywords in java.