Java 8 introduces a new class called java.util.Optional<T> that represents encapsulation of an optional value. Instead of returning the value…

If a class implements an interface, it needs to either implement all the methods defined by the interface or inherit…

In this article, we will understand what are streams and why we need them? The best way to understand streams…

Lambda expression is like a method without a name.  Hmm…but isn’t it similar to anonymous inner classes? Before we get…