Generics

What are generics

Generics refers to the technique of writing the code for a class without specifying the data type(s) that the class works on. It allow you to define type-safe data structures, without committing to actual data types. 

Generics allow you to define the specification of the data type of programming elements in a class or a method, until it is actually used in the program. In other words, generics allow you to write a class or method that can work with any data type.