What are Java 8 streams?

1.	What are Java 8 streams?
Answer» A stream is an ABSTRACTION to express data processing queries in a declarative way. A Stream, which represents a sequence of data objects & series of operations on that data is a data pipeline that is not related to Java I/O Streams does not hold any data permanently. The key interface is java.util.stream.Stream<T>. It accepts Functional INTERFACES so that lambdas can be passed. Streams SUPPORT a fluent interface or chaining. Below is the basic stream timeline MARBLE diagram: Java 8 Streams

Answer»

A stream is an ABSTRACTION to express data processing queries in a declarative way.

A Stream, which represents a sequence of data objects & series of operations on that data is a data pipeline that is not related to Java I/O Streams does not hold any data permanently.
The key interface is java.util.stream.Stream<T>. It accepts Functional INTERFACES so that lambdas can be passed. Streams SUPPORT a fluent interface or chaining. Below is the basic stream timeline MARBLE diagram:

Java 8 Streams

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