Thread by @amoghharde

What is Java 8 lambdas and functional programming?
A thread 🧵👇

Java 8 introduced a number of new features to the language, including lambda expressions, which enable functional programming in Java. But what exactly are lambda expressions and how do they work?

A lambda expression is a short block of code that can be passed around as an argument or returned as a value. It's essentially a function without a name that can be used wherever a function interface is expected.

This allows you to write more concise and expressive code, as well as taking advantage of functional programming concepts such as higher-order functions and lazy evaluation.

One of the main benefits of using lambda expressions is the ability to manipulate collections in a more efficient and streamlined way. Prior to Java 8, this often required the use of external libraries or cumbersome iteration techniques.

With lambda expressions, you can use the built-in Stream API to perform operations such as filtering, mapping, and reducing on collections in a more intuitive and efficient manner.

In addition to lambda expressions, Java 8 also introduced several functional interfaces (e.g. Predicate, Consumer, Function) and default methods for interfaces, which further enhance the functional programming capabilities of the language.

Overall, the inclusion of lambda expressions and functional programming concepts in Java 8 has greatly improved the expressiveness and flexibility of the language, and has made it easier to write cleaner, more concise code.

So what's your view on functional programming in #JAVA ?

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