![]() At the top of the hierarchy is interface BaseStream providing basic functionality for all the Streams.īaseStream interface is extended by interfaces- DoubleStream, IntStream, LongStream and Stream. ![]() Java Stream API contains several interfaces and classes which are packaged with in the package. Collection Vs Stream API Java Stream API – Interfaces and Classes.Examples of intermediate stream operations.Intermediate operations in Java Streams.Java Stream API – Interfaces and Classes.Since the examples use lambda expressions and functional interfaces so make sure that you are familiar with those topics. In this Java Stream API tutorial we’ll see how to create streams, types of streams and various stream operation examples. ![]() In the above example List myList is the data source for the stream and count is the stream operation performed on the stream. ("Count of elements in the list- " + count) Stream API takes care of executing stream pipeline in an optimized way. ![]() Using Java Stream API you can create a stream over an object and then you just need to specify what needs to be done not how it has to be done.įor example if you want to count the elements in the stream, you need to specify the source for obtaining a stream and the function to count the elements. The way Lambda expressions in Java brought functional programming to Java another addition in Java 8, Stream API in Java brought functional approach to processing collections of objects.
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