Stateless and Stateful Operations

Java-Stateless and Stateful Operations

Stateless and Stateful Operations Intermediate operations in the stream are classified to two types: stateless and stateful. In a stateless operation, each element is processed independently of the others. In a stateful operation, the processing of an element may depend on aspects of the other elements. For example, consider the following program: The sorted() method produces … Read more…

Generic Reduction Operation

Java-Generic Reduction Operation

Generic Reduction Operation The stream API generalizes the reduction operation concept by providing the reduce( ) method. By using reduce( ), you can return a value from a stream based on any arbitrary criteria. By definition, all reduction operations are terminal operations. Stream defines three versions of reduce( ). The two we will use first are : … Read more…

Reduction Operations

Java-Reduction Operations

Reduction Operations The Stream contains many terminal operations that return one value by combining the contents of a stream. These operations are called reduction operations. Many reduction operations perform a specific task. Consider the following program : Program Consider the min(), max(), findAny() and findFirst() methods in the program. They are reduction operations, because each reduces a … Read more…

Stream

Java-Stream

Stream Of the many new features recently added to Java, two of the most important are lambda expressions and the stream API. A stream is a conduit for data. Thus, a stream represents a sequence of objects. A stream operates on a data source, such as an array or a collection. A stream, itself, never … Read more…