Reactive World

  Stream.reduce() Before learning about the stream.reduce() , first we will learn two functional interfaces. BinaryOperator<T> Represents an operation upon two operands of the same type, producing a result of the same type as the operands. This is a specialization of BiFunction for the case where the operands and the result are all of the same type. The SAM is T apply ( T t , T t ) ; BiFunction<T, U, R> Represents a function that accepts two arguments and produces a result. The SAM is R apply ( T t , U u ) ; Now we will start the Stream.reduce() Reduction stream operations allow us to produce one single result from a sequence of elements. A reduction is a terminal operation that aggregates a stream into a type or a primitive. For example, a set of predefined reduction operations, such as average(), sum(), min(), max(), and count(), return one value by combining the elements of a stream. Stream.reduce() is a general-purpose method for generating our custom reduction ope...