Book Image

Learn Java with Projects

By : Dr. Seán Kennedy, Maaike van Putten
5 (3)
Book Image

Learn Java with Projects

5 (3)
By: Dr. Seán Kennedy, Maaike van Putten

Overview of this book

Learn Java with Projects stands out in the world of Java guides; while some books skim the surface and others get lost in too much detail, this one finds a nice middle ground. You’ll begin by exploring the fundamentals of Java, from its primitive data types through to loops and arrays. Next, you’ll move on to object-oriented programming (OOP), where you’ll get to grips with key topics such as classes, objects, encapsulation, inheritance, polymorphism, interfaces, and more. The chapters are designed in a way that focuses on topics that really matter in real-life work situations. No extra fluff here, so that you get more time to spend on the basics and form a solid foundation. As you make progress, you’ll learn advanced topics including generics, collections, lambda expressions, streams and concurrency. This book doesn't just talk about theory—it shows you how things work with little projects, which eventually add up to one big project that brings it all together. By the end of this Java book, you’ll have sound practical knowledge of Java and a helpful guide to walk you through the important parts of Java.
Table of Contents (22 chapters)
1
Part 1: Java Fundamentals
9
Part 2: Object-Oriented Programming
15
Part 3: Advanced Topics

Project – dynamic dinosaur care system

Integrate the Stream API into your dinosaur care system to process large volumes of dinosaur data, such as health records, feeding schedules, and so on. The system should also incorporate Optional and parallel streams where appropriate, optimizing data processing and minimizing potential null pointer exceptions.

Here are the steps to get you there:

  1. Set up your project: If you haven’t done so already, create a new Java project in your IDE of choice. You should have a Dinosaur class with properties such as name, species, healthStatus, and so on. There should also be a DinosaurCareSystem class for implementing the main functionalities.
  2. Use streams to process dinosaur data:
    1. Health records: Suppose you have a list of health records for each dinosaur and you want to find records where a dinosaur’s health status was below a certain threshold. You could create a Stream from the list of records and use the filter method...