SOLID-Principles in JAVA

S - Single Responsibility

A class should have one, and only one responsibility and reason to change.

O - Open-Closed

A class should be open for extension but closed for modification

L - Liskov Substitution

Subtypes(derived classes) should be replaceable by their base(parent class) types

I - Interface Segregation

Many specific interfaces are better than a general interface

D - Dependency Inversion

We must depend on abstractions and not concrete classes