Here we will try to explain all the OOPS concepts through this example and later we will have the technical definitons for all this.
Class. Here we can take Human Being as a class.
In this way, what is the features of OOPS?
There are three major features in object-oriented programming: encapsulation, inheritance and polymorphism. Encapsulation refers to the creation of self-contained modules that bind processing functions to the data. These user-defined data types are called “classes,” and one instance of a class is an “object.”
What is the core Java?
Core Java” is Sun’s term, used to refer to Java SE, the standard edition and a set of related technologies, like the Java VM, CORBA, et cetera. This is mostly to differentiate from, say, Java ME or Java EE. Currently Java Core is defined as a following set: Basic technologies.