Introduction Object-Oriented Programming (OOP) is a programming paradigm that is based on the concept of objects, which can contain data and code to manipulate that data. Java is a fully object-oriented programming language, and as such, it provides several key concepts that make up the foundation of OOP. In this tutorial, we will explore the main OOP concepts in Java, along with examples and code. It is based on the principles of: Encapsulation Inheritance Polymorphism Abstraction In OOPs, everything is treated as an object, which can have properties and methods that operate on those properties. Advantages of using OOPs: There are several advantages of using OOPs in programming: Modularity: OOPs allows breaking down the code into smaller, more manageable pieces known as objects. This makes the code more modular, easier to understand, and maintain.

1. Introduction Mobile app testing is a crucial part of the software development life cycle, ensuring that applications perform as expected on various devices and operating systems. However, testing on physical devices can be expensive and time-consuming. That's where emulators come in. Emulators are software applications that simulate real mobile devices, allowing developers and testers to test their apps without the need for physical devices. This comprehensive guide aims to provide you with a complete understanding of mobile app testing using emulators. We will explore the concept of emulators, the AVD Manager (Android Virtual Device Manager), and how to set up and configure emulators for testing. Additionally, we will delve into writing Appium test scripts to automate testing tasks and cover various aspects of interacting with emulators. By the end of this guide, you will have a solid foundation for testing mobile apps using emulators, enabling you to efficiently validate your...

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