Java is an Object-Oriented Language hence before learning java let us understand the object oriented Concepts first. Object An object in the software world means a bundle of related variables and functions known as methods variables and functions known as methods. Software objects are often used to model real-world objects you find in everyday life. The real world objects and software objects share two characteristics : 1. State : condition of an item. 2. Behaviour : Observable effects of an operation or event including its results. State can be of two types : Active state which reflects the behaviour and Passive State refers to state which does not change which does not change. The behaviour of an object forms the interface to the external world. Class A class is a blueprint or prototype that defines the variables and the methods (or funtions) common to all objects of a certain kind. Constituents… Read more“Object oriented concepts used in Java”