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  • Book Overview & Buying Learn Java with Projects
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Learn Java with Projects

Learn Java with Projects

By : Dr. Seán Kennedy, Maaike van Putten
4.9 (48)
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Learn Java with Projects

Learn Java with Projects

4.9 (48)
By: Dr. Seán Kennedy, Maaike van Putten

Overview of this book

Learn Java with Projects bridges the gap between introductory Java guides and verbose, theoretical references. This book is crafted to build a strong foundation in Java programming, starting from the Java environment itself. It goes far beyond a superficial review of the topics; it demonstrates, with practical examples, why these fundamentals are crucial for developing a deep understanding of the language. You'll not only learn about classes and objects but also see how these concepts are used in practical scenarios, enhancing your ability to write clean, efficient code. The engaging projects throughout the book provide real-world applications of complex topics, ensuring you can connect theoretical knowledge with practical skills. What makes this book stand out is the expertise of its authors. Seán, a seasoned university lecturer with over 20 years of experience, brings academic rigor and real-world insights, thanks to his work with a prestigious software company. Maaike, a passionate software developer and award-winning trainer, brings hands-on experience and a love for teaching. By the end of this book, you'll not only understand Java's core concepts and the critical advanced ones, but also gain practical experience through projects that mimic real-life challenges.
Table of Contents (22 chapters)
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1
Part 1: Java Fundamentals
9
Part 2: Object-Oriented Programming
15
Part 3: Advanced Topics

Mastering advanced encapsulation

The simple maxim of “private data, public methods” (where the public methods manipulate the data) goes a long way to ensuring proper encapsulation of your data. However, you are not completely safe just yet. In this section, we will review Java’s call by value principle, which is used when passing arguments to and returning values from methods. We will examine how this can present a subtle issue. Lastly, we will examine how to protect your code from encountering this issue in the first place.

Call By value revisited

In Chapter 7, we discussed how, when passing arguments to methods, Java’s call by value mechanism creates copies of those arguments. We saw the need to be aware that when the argument is a reference, such as to an array, the called method can now manipulate the array object that the caller method is looking at.

Similarly, when a method is returning something, call by value applies again. In other words...

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Learn Java with Projects
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