Understand how collections behave and are used in Java; Learn how to apply lambda expressions to perform filtering, mapping, and grouping; Gain experience using the Stream API for processing data; See ...

The Stream interface comes with different types of stream operations including Filter, Sorted, Match, Map, Count, Reduce, etc. Streams can effectively be used with the lambda expression.

WHY FUNCTIONAL INTERFACE?? In Java, only objects and primitive data types can be passed as arguments of a function. Java doesn't have standalone functions as first-class citizens like some other ...

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.

Example UnaryOperator Lambda expression. If you implement the UnaryOperator interface with a complete Java class, it will create completely valid code, but it defeats the purpose of working with a ...

That all changed with Java 8. As organizations slowly move to Java 8 and Java 11 platforms, more and more developers are getting the opportunity to use lambda expressions — or lambda functions, as ...