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New Features in Java 8

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Introduction

About This Module

Taste of lambdas

Writing your first lambda Java Comparator Using Lambda Predicate Functional Interface Supplier Functional Interface Consumer Functional Interface Function Interface Unary Operator Binary operator Capturing lambdas

Stream API

Introduction Filtering Operations in Stream Mapping Operations in Stream Method References Optional in Java 8: Part 1 Optional in Java 8: Part 2 Slicing Operations in Stream Matching Operations in Stream.Finding Operations in Stream Mutable Reduction Through reduce()Collectors: Collection Operations.Collectors: Aggregation Operations Collectors: Grouping Operations Parallel Stream Lazy Evaluation in Streams

Java 8 Concurrency API Improvements

CompletableFuture: Introduction CompletableFuture: Processing Results CompletableFuture: Chaining CompletableFuture: Combining Results of Futures StampedLock

Java Time API

Limitations of Old Date/Time API

Period and Duration

The Way Forward

Where to Go From Here

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Period and Duration

Period and Duration

In this lesson, we will explore the Period and Duration classes and their methods.

If we need to show the amount of time taken e.g 2 days or 3 hours then we need to use the Period and Duration classes introduced in Java 8 time API.

Let’s have a deeper look into these classes.

Period

A period represents the date-based amount of time in the ISO-8601 calendar system, such as 2 years, 3 months, and 4 days. This class is used to ...