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Java Streams: stream creation with examples

Streams let us do computation on the collection of data in a declarative way, (rather than specifying how to do, we specify what to do). To perform a computation, stream operations are composed into a stream pipeline. A stream pipeline consists of a source, zero or more intermediate operations, and a terminal operation. Streams are lazy; computation on the source data is only performed when the terminal operation is initiated.

Functional Programming in Java


Functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that each return a value, rather than a sequence of imperative statements which change the state of the program wikipedia Java 8 introduced functional programming in the form of Lambda.…