https://javadevcentral.com/tags/java8/ Recent content in Java8 on Java Developer Central Hugo -- 0.134.2 en-us Mon, 30 Oct 2023 11:38:00 +0530 https://javadevcentral.com/java-stream-map-operation/ Mon, 30 Oct 2023 11:38:00 +0530 https://javadevcentral.com/java-stream-map-operation/ We use the Java Stream map (an intermediate operation) to map an element in a stream to a different value (of the same or different type). https://javadevcentral.com/java-stream-toarray/ Tue, 15 Mar 2022 19:08:00 +0530 https://javadevcentral.com/java-stream-toarray/ The Java stream toArray methods, which we learn in this post, allow us to collect/convert a stream into an array. https://javadevcentral.com/primitiveiterator-in-java/ Wed, 22 Dec 2021 17:04:00 +0530 https://javadevcentral.com/primitiveiterator-in-java/ A PrimitiveIterator in Java is an interface for the primitive specializations of an Iterator. In this post, we will learn about the PrimitiveIterator, its subclasses and its uses. https://javadevcentral.com/collectors-mapping-in-java/ Mon, 23 Aug 2021 13:56:00 +0530 https://javadevcentral.com/collectors-mapping-in-java/ Collectors mapping in Java is a static method in the Collectors class. In this post, we will learn about the mapping method in Collectors. https://javadevcentral.com/functional-interfaces-in-java-functions/ Sun, 06 Jun 2021 12:11:00 +0530 https://javadevcentral.com/functional-interfaces-in-java-functions/ In this post, we will learn about the functional interface in Java for functions present as part of the java.util.function namespace. https://javadevcentral.com/java-doublestream-a-complete-guide/ Mon, 05 Apr 2021 10:26:00 +0530 https://javadevcentral.com/java-doublestream-a-complete-guide/ A Java DoubleStream is a sequence of double-valued elements that supports sequential and parallel aggregate operations. https://javadevcentral.com/default-methods-in-java-map/ Mon, 22 Mar 2021 20:09:00 +0530 https://javadevcentral.com/default-methods-in-java-map/ Many JDK interfaces were enhanced with default methods in Java 8. In this post we will learn about the default methods in the Java Map interface. https://javadevcentral.com/collectors-joining-in-java-8/ Mon, 30 Nov 2020 17:49:00 +0530 https://javadevcentral.com/collectors-joining-in-java-8/ Collectors.joining returns a Collector which concatenates the stream elements separated by a delimiter, prefix and suffix in encounter order. https://javadevcentral.com/java-8-stringjoiner-with-examples/ Mon, 23 Nov 2020 17:39:00 +0530 https://javadevcentral.com/java-8-stringjoiner-with-examples/ Java 8 StringJoiner class can be used to build a sequence of characters that are separated by a configured delimiter, prefix and a suffix. https://javadevcentral.com/java-stream-distinct-by-property/ Mon, 09 Nov 2020 13:27:00 +0530 https://javadevcentral.com/java-stream-distinct-by-property/ Java Streams has a distinct method which removes duplicates by object’s equal method. This post explains ways to apply distinct by a property. https://javadevcentral.com/function-chaining-in-java/ Tue, 29 Sep 2020 11:00:00 +0530 https://javadevcentral.com/function-chaining-in-java/ A Function is primarily used along with the map operation on a Java stream. In this post, we will learn about Function chaining in Java 8. https://javadevcentral.com/predicate-chaining-in-java/ Mon, 21 Sep 2020 10:52:00 +0530 https://javadevcentral.com/predicate-chaining-in-java/ We have used a Predicate in a Java stream. This post covers the methods in Predicate class which allow us to do Predicate chaining in Java 8. https://javadevcentral.com/summary-statistics-in-java-8/ Mon, 20 Jul 2020 18:31:00 +0530 https://javadevcentral.com/summary-statistics-in-java-8/ Java 8 added three Summary Statistics classes viz., IntSummaryStatistics LongSummaryStatistics and DoubleSummaryStatistics used to collect statistics. https://javadevcentral.com/default-method-resolution-rules/ Mon, 25 May 2020 16:24:00 +0530 https://javadevcentral.com/default-method-resolution-rules/ This post covers the default method resolution rules. These will be used when a class inherits more than one method with the same signature. https://javadevcentral.com/a-complete-guide-to-java-optional/ Mon, 11 Nov 2019 14:49:00 +0530 https://javadevcentral.com/a-complete-guide-to-java-optional/ Optional is a container object added to Java 8+ that is used as a wrapper over some value. It provides a mechanism to represent “no result” for a method. https://javadevcentral.com/java-method-references/ Wed, 29 May 2019 18:05:00 +0530 https://javadevcentral.com/java-method-references/ A method reference is a reference to an existing method. When a lambda expression just calls an existing method, we can use a Method Reference. https://javadevcentral.com/java8-intstream/ Tue, 14 May 2019 17:42:00 +0530 https://javadevcentral.com/java8-intstream/ A sequence of primitive int-valued elements supporting sequential and parallel and aggregate operations. It is an int primitive specialization of Stream. https://javadevcentral.com/java-comparator-comparing/ Mon, 29 Apr 2019 16:23:00 +0530 https://javadevcentral.com/java-comparator-comparing/ The Comparator is a comparison function in Java that imposes a total ordering on a collection of objects. The comparing is a static method in it