Pure Java 8-17 demos & examples, including Java 8 new-features, algoritms, challenges, questions, etc. Can include additional dependencies (e.g., mapdb), but all Java - no Spring, Kafka, etc.

A Java 8 app designed to use as a starting point/example for AWS Lambda - biniama/aws-lambda-java-example ...

Don't be intimidated by the prospect of doing functional programming in Java. This step-by-step example will help you learn basic Java lambda syntax quickly and effectively.

Java 8 was released in March 2014 and introduced lambda expressions as its flagship feature. You may already be using them in your code base to write more concise and flexible code. For example ...

Like C# lambda expressions, Java 8 lambda expressions tie an argument list to a body. For example, (int x) -> x * x specifies an integer parameter that’s named x and returns the value of x squared.

This tutorial demonstrates the power of lambda expressions by contrasting implementations of a mathematical example using C++, Java without lambdas, and Java 8 with lambda expressions.