Collectors.toMap() – Collect a stream to a map

Welcome to Java 8 series. In this tutorial, you will learn about how to collect a stream to a map using Collectors.toMap(). If you would like to learn more about Java Stream operations.Please check out this link. In this example, we will use Stream.collect() operation to perform a reduce operation on the stream of elements.i.e., in this case,we will collect a stream […]

Java Stream reduce() operation with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream reduce() operation with examples. reduce() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. Stream reduce() operation allows us to reduce the elements of the stream into a single result by applying a function repeatedly on the elements of the stream. This function allows applying […]

Java Stream noneMatch() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream noneMatch() with examples. noneMatch() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. noneMatch() allows us to identify whether none of the elements of the stream matches the given condition or predicate. noneMatch() returns a boolean. Once noneMatch() is applied to a stream, it returns a […]

Java Stream allMatch() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream allMatch() with examples. allMatch() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. allMatch() allows us to identify whether every element of the stream matches the given condition or predicate. allMatch() returns a boolean. Once allMatch() is applied to a stream, it returns a boolean result […]

Java Stream anyMatch() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream anyMatch() with examples. anyMatch() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. anyMatch() allows us to identify whether any element of the stream matches the given condition or predicate. anyMatch() returns a boolean. Once anyMatch() is applied to a stream, it returns a boolean result […]

Java Stream toArray() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream toArray() with examples. toArray() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. toArray() allows us to get all elements of the stream as an array.  Once toArray() is invoked on a stream, it returns an array with elements of the stream and the stream will […]

Java Stream findAny() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream findAny() with examples. findAny() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. findAny() allows us to get any element of the stream. Once findAny() is invoked on a stream, it returns any element of the stream and the stream will be closed. We cannot reuse […]

Java Stream findFirst() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream findFirst() with examples. findFirst() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. findFirst() allows us to get the first element of the stream. Once findFirst() is invoked on a stream, it returns the first element of the stream and the stream will be closed. We […]

Java Stream max() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream min() with examples. max() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. max () operation allows us to get the maximum value available in the stream of elements. Once max() is invoked on a stream, it returns the maximum value of the stream and the […]

Java Stream min() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream min() with examples. min() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. min() operation allows us to get the minimum value available in the stream of elements. Once min() is invoked on a stream, it returns the minimum value of the stream and […]

Java Stream count() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream count() with examples. count() is a part of the Stream pipeline and terminal operation. It belongs to the Stream interface. count() operation allows us to count the number of elements in the stream. Once count() is invoked on a stream, it returns a count value and the stream will be […]

Java Stream flatMapToDouble() with examples

Welcome to Java 8 series. In this tutorial, you will learn about java stream flatMapToDouble() with examples. flatMapToDouble() is a part of the Stream pipeline and an intermediate operation. It belongs to the Stream interface. Before learning flatMapToDouble() let us understand flattening? What is flattening? Flattening helps in converting a collection of several list or collections into a single collection. […]