Object vs Class

Posted September 9, 2022 by Rohith and Anusha ‐ 1 min read

Everything in Java is associated with classes and objects, along with its attributes and methods. For example: in real life, a car is an object. The car has attributes, such as weight and color, and methods, such as drive and brake. A Class is like an object constructor, or a blueprint for creating objects.

There are many differences between object and class. A list of differences between object and class are stated below

Object is an instance of a class.Class is a blueprint or template from which objects are created.
Object is a real world entity such as pen, laptop, mobile, bed, keyboard, mouse, chair etc.Class is a group of similar objects.
Object is a physical entity.Class is a logical entity.
Object is created many times as per requirement.Class is declared once.
Object allocates memory when it is created.Class doesn’t allocated memory when it is created.
There are many ways to create object in java such as new keyword, newInstance() method, clone() method, factory method and deserialization.There is only one way to define class in java using class keyword.
Object is created through new keyword mainly eg. Student s1=new Student();Class is declared using class keyword e.g. class Student{}
quick-references blog object class differences

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