How does hashmap work Internally – Explained: In this post, let us see how hashmap works internally – How the elements are added and retrieved from buckets. Features of HashMap:…

Strings are Immutable | StringBuilder | StringBuffer: In this post, let us discuss about Strings, why Strings are immutable where as StringBuilder and StringBuffer are mutable.   What is Immutability?…

Coupling | Tight Coupling vs Loose Coupling | Examples What is Coupling? When one object is used by another object it is known as Coupling. In general, it is based…

Docker-Compose | Configure docker-compose | Container to Container Communication With Example: In our previous posts, we have seen how to Dockerize SpringBoot Application (here) and How to pull and push…