Java – How to sum all the stream integers
The sum() method is available in the primitive int-value stream like IntStream, not Stream. We can use mapToInt() to convert a stream integers into a IntStream.
Java 8 – How to Sum BigDecimal using Stream?
In Java 8, we can use the Stream.reduce() to sum a list of BigDecimal. Java example to sum a list of BigDecimal values, using a normal for loop and a…
Java 8 Stream.iterate examples
In Java 8, we can use Stream.iterate to create stream values on demand, so called infinite stream. The stream.iterate was enhanced in Java 9. It supports a predicate (condition) as…
Java 8 BinaryOperator Examples
In Java 8, BinaryOperator is a functional interface and it extends BiFunction. The BinaryOperator takes two arguments of the same type and returns a result of the same type of…
Java 8 Stream.reduce() examples
In Java 8, the Stream.reduce() combine elements of a stream and produces a single value, with 2 arguments: 1 - identity is default or initial value, and 2 - BinaryOperator…
Java 8 flatMap example
This article explains the Java 8 Stream.flatMap and how to use it. In Java 8, we can use the flatMap to convert the above 2 levels Stream into one Stream…