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Java 9 Programming By Example

You're reading from   Java 9 Programming By Example Your guide to software development

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Product type Paperback
Published in Apr 2017
Publisher Packt
ISBN-13 9781786468284
Length 504 pages
Edition 1st Edition
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Author (1):
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Peter Verhas Peter Verhas
Author Profile Icon Peter Verhas
Peter Verhas
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Table of Contents (11) Chapters Close

Preface 1. Getting Started with Java 9 FREE CHAPTER 2. The First Real Java Program - Sorting Names 3. Optimizing the Sort - Making Code Professional 4. Mastermind - Creating a Game 5. Extending the Game - Run Parallel, Run Faster 6. Making Our Game Professional - Do it as a Webapp 7. Building a Commercial Web Application Using REST 8. Extending Our E-Commerce Application 9. Building an Accounting Application Using Reactive Programming 10. Finalizing Java Knowledge to a Professional Level

Getting started with sorting

The sorting problem is one of the oldest programming tasks that an engineer deals with. We have a set of records and we know that we want to find a specific one sometime later, and we want to find that one fast. To find it, we sort the records in a specific order that helps us find the record we want quickly.

As an example, we have the names of students with their marks on some cards. When students come to the office asking for their results, we look through all of the cards one after the other to find the name of the enquiring student. However, it is better if we sort the cards by the names of the students alphabetically. When a student makes an enquiry, we can search the mark attached to the name much faster.

We can look at the middle card; if it shows the name of the student, then we are happy to have found the name and the mark. If the card precedes the name of the student...

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