Introduction to Java Streams

Java Streams are a powerful and flexible way to process collections of data in a functional and declarative way. Streams allow developers to express complex operations in a concise and readable way, and can lead to more efficient and parallelized code.

Streams are essentially a sequence of elements that can be processed in parallel or sequentially. A stream can be obtained from a collection or an array using the or methods, and once you have a stream, you can use a variety of methods to transform, filter, and aggregate the data.

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Stream Operations

There are two types of operations in Java Streams: intermediate and terminal.

Intermediate operations are operations that transform, filter, or modify the stream in some way. Intermediate operations return a new stream and do not modify the original stream. Examples of intermediate operations include map(), , , , and limit().

Terminal operations are operations that produce a result or side effect, such as printing or collecting the stream into a collection or a single value. Terminal operations are executed only when the stream pipeline is triggered, which happens when a…