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Understanding Classes, Objects, and Their Usage in Java

In the previous chapter, we covered a short introduction to Java and how to install the editor that we will be typing our code in. We also wrote and executed our first code on the editor.

In this chapter, we will go deeper into some basic concepts, such as strings and variables, and how they are different from each other. We will also see what methods are and how they are put to use with different code. We will discuss why objects are important in our code and how we can implement them.

In this chapter, we will cover the following topics:

Difference between strings and variables
Using methods
Importance of classes and objects in Java

Key benefits

Learn to use Java program logic in application testing

Understand various test-driven development concepts with Java tools

Master Java with lots of programming examples

Description

Java is one of the most commonly-used software languages by programmers and developers. Are you from a non-technical background and looking to master Java for your automation needs? Then Hands-On Automation Testing with Java for Beginners is for you. This book provides you with efficient techniques to effectively handle Java-related automation projects. You will learn how to handle strings and their functions in Java. As you make your way through the book, you will get to grips with classes and objects, along with their uses. In the concluding chapters, you will learn about the importance of inheritance and exceptions with practical examples. By the end of this book, you will have gained comprehensive knowledge of Java.

What you will learn

Understand the practical usage of Java conditions and loops

Write any Java program logic with strategies, tips, and tricks

Leverage advanced topics in Java collections to solve Java-related problems

Understand and use objects, classes, methods, and functions in Java

Build Java automation frameworks from scratch

Obtain knowledge of Java object-oriented programming (OOP) concepts with practical implementations

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