Book Image

Java 11 Cookbook - Second Edition

By : Nick Samoylov, Mohamed Sanaulla
Book Image

Java 11 Cookbook - Second Edition

By: Nick Samoylov, Mohamed Sanaulla

Overview of this book

For more than three decades, Java has been on the forefront of developing robust software that has helped versatile businesses meet their requirements. Being one of the most widely used programming languages in history, it’s imperative for Java developers to discover effective ways of using it in order to take full advantage of the power of the latest Java features. Java 11 Cookbook offers a range of software development solutions with simple and straightforward Java 11 code examples to help you build a modern software system. Starting with the installation of Java, each recipe addresses various problem by explaining the solution and offering insights into how it works. You’ll explore the new features added to Java 11 that will make your application modular, secure, and fast. The book contains recipes on functional programming, GUI programming, concurrent programming, and database programming in Java. You’ll also be taken through the new features introduced in JDK 18.3 and 18.9. By the end of this book, you’ll be equipped with the skills required to write robust, scalable, and optimal Java code effectively.
Table of Contents (18 chapters)

How to create a time-based period between time instances

In our previous recipe, we created a date-based period, which is represented by java.time.Period. In this recipe, we will look at creating a time-based difference between time instances in terms of seconds and nanoseconds using the java.time.Duration class.

We will look at different ways to create an instance of java.time.Duration, manipulate the duration instance, and obtain the duration in terms of different units, such as hours and minutes. The ISO 8601 standard specifies one of the possible patterns for representing duration to be PnYnMnDTnHnMnS, where the following applies:

  • Y, M, and D represent the date component fields, namely, year, month, and day
  • T separates the date with the time information
  • H, M, and S represent the time component fields, namely, hour, minutes, and seconds

The string representation implementation...