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Learn Java with Projects

Learn Java with Projects

By : Dr. Seán Kennedy, Maaike van Putten
4.9 (51)
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Learn Java with Projects

Learn Java with Projects

4.9 (51)
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

Understanding exceptions

In everyday life, we have to execute a lot of processes. And all the time, we have little hiccups that happen, and these should not ruin our day. These hiccups are not considered the happy path of events, but they happen often, and we recover from them and continue business as usual.

There are also more serious problems that can occur, for which we need to have a formal backup plan, such as evacuating a building in case of a fire.

Exceptions in Java are like this. These are things that should not happen; sometimes, we are in control of them happening and sometimes, we are not. In some cases, we are obligated to specify a backup plan, and in other cases, we are not. First, let’s talk a bit more about what exceptions are.

What are exceptions?

Exceptions are events that disrupt the normal flow of the program. They typically arise from errors or unexpected conditions that the program encounters while running. Exceptions in Java are objects. These...

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