SOLID Principles - Tamil 

Open/Close you could use interface incase of extenstion, it consumes less memory as it will only declare methods and fields without defining it. if you use the parent-child class in this case, and don't use the fields/methods in the parent class, it's redundant and consumes more memory

Thank you.

Please put more videos..

Can you explain the Dependency Injection in Detail or can you give any reference where I can get its detail explanation

Can you please explain in Tamil?

Can you share code.

Tamil nu sollitu .. english la nadathura .. overah scene podadha

Thank you..