Create a Person class in Java

Member variables are known as instance variables in java. Instance variables are declared in a class, but outside a method, constructor or any block. When space is allocated for an object in the heap, a slot for each instance variable value is created.

The this keyword refers to the current object in a method or constructor . The most common use of the this keyword is to eliminate the confusion between class attributes and parameters with the same name (because a class attribute is shadowed by a method or constructor parameter).

The definition of the class Person consists of the following elements: