","\t\t\t\t\t\t If any class or any interface is","\t\t\t\t\t\tavailable in the java.lang package we dont have to import it.","\t\t\t\t\t\tStraight away we can use it ...

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Object variables in Java always point to the real object in the memory heap. A mutable object’s value can be changed when it is passed to a method.