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Class and Object in Java

In Java we have to always deal with objects, now let's understand what is object , how to define object in Java.


What is Object In Java ?

Object is an entity with STATE and Behavior.

Examples of Objects : Bike ,Mobile, Student,Laptop,Car etc.

If we consider Bike As Object , Bike Name is state , Bike Color is state , and Running is behavior of Bike,Starting is behavior of bike and stopping is also behavior of Bike.

In Java we say , Object is an Instance of class , it means we can create object using class.

What is class ?

A class is template or blueprint from which objects are created.

A class in java can contain fields(variables),Methods(Behaviors),blocks,constructors etc.

How To Create class in Java ?

Syntax To Create Class :

    class College {
        String collegeName="COEP";
        public void getAdmission(){
            System.out.println("In this method we have to write logic to get Admissions");
        }
    }

In above example , collegeName is a field and getAdmission is a method.

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