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Advanced Java Concepts and Collections

Packt - Course Instructors

In this course, you'll master Selenium, a powerful tool for automating web applications. Beginning with setting up your first web application, you'll dive into Selenium locators, learning to efficiently locate web elements using strategies like ID, name, and tag name.

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In this course, you'll master Selenium, a powerful tool for automating web applications. Beginning with setting up your first web application, you'll dive into Selenium locators, learning to efficiently locate web elements using strategies like ID, name, and tag name.

You'll explore TestNG for project setup, debugging, and test slowing for better visualization. The course covers handling form elements such as text fields, checkboxes, radio buttons, and select boxes, creating robust automation scripts that mimic real-world user interactions. Advanced topics include window navigation, alert handling, and WebDriver's manage window methods for effective automation.

You'll gain hands-on experience with implicit and explicit waits, crucial for dynamic web applications. The course also covers cross-browser testing and data-driven testing, guiding you through setting up projects for different browsers, running headless tests, and implementing data-driven approaches using CSV and Excel files. By the end, you'll understand the Page Object Model, Selenium Grid, and standalone server, equipping you to scale your automation tests effectively.

Designed for QA professionals and software testers with basic web technology knowledge, the course enhances skills in automated testing using Selenium, with a fundamental knowledge of Java recommended.

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What's inside

Syllabus

Collections
In this module, we will embark on a thorough exploration of Java Collections. We begin with an overview of the necessity and significance of collections in Java programming. Next, we dive into the List interface, covering its importance in maintaining order and position, and exploring the differences between ArrayList, LinkedList, and Vector implementations. We will master methods for manipulating lists and selecting optimal iteration techniques. The module also includes comprehensive coverage of sorting collections using built-in methods and custom comparators. Finally, we will delve into the Set, Queue, and Map interfaces, understanding their unique characteristics and practical applications. This module is packed with hands-on exercises and real-world scenarios to solidify your understanding and proficiency in using Java Collections.
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Generics
In this module, we will delve into the powerful world of Java Generics. We begin by exploring the fundamental reasons for using generics, highlighting their role in creating type-safe and reusable code. Next, we implement generics in a custom list to see their practical benefits firsthand. We then extend these custom lists with generic return methods to further enhance flexibility. Through engaging puzzles, we will uncover the restrictions and capabilities of generics, especially with bounded types. Finally, we will apply wildcards to navigate complex generic scenarios, mastering both upper and lower bounds to achieve robust and adaptable coding solutions.
Introduction to Exception Handling
In this module, we will explore the fundamentals of exception handling in Java. We start by understanding the mindset required during exception handling, followed by a deep dive into common exceptions like 'NullPointerException' and how to interpret stack traces. We will then cover the basic try-catch mechanism, the significance of the finally block, and the concept of exception hierarchies. Through hands-on puzzles, we will differentiate between checked and unchecked exceptions and learn to throw custom exceptions. Additionally, we will explore advanced features like try-with-resources introduced in Java 7. This module concludes with a discussion on best practices to ensure your code is resilient and well-structured.
Java Tips
In this module, we will explore a series of valuable Java tips to enhance your coding efficiency and effectiveness. We begin by discussing the role of imports and static imports to simplify code. Next, we delve into the proper use of code blocks and the importance of the 'equals' and 'hashcode' methods in custom object comparison. We will also cover various access modifiers for classes and methods, helping you control access and visibility within your codebase. The module includes practical insights into using the final keyword for classes, methods, variables, and arguments, ensuring that you can leverage immutability where necessary. These tips are designed to refine your coding practices and make your Java programs more robust and maintainable.
Getting Started with Selenium, JUnit, and TestNG
In this module, we will explore the foundations of automated testing using Selenium, JUnit, and TestNG. Starting with an overview of Selenium, we will guide you through the installation of Selenium IDE and demonstrate how to record and replay test scenarios such as Google Search and Facebook Login. We will also introduce advanced features of Selenium IDE and present Katalon Studio as an alternative, complete with its installation and advanced capabilities. The module includes instructions for setting up a new Maven project, adding dependencies for JUnit and WebDriver, and resolving driver errors with ChromeDriverManager. We will conduct hands-on exercises to run Facebook JUnit tests and understand the background processes of Selenium automation tests. Finally, we will install the TestNG plugin, create a new project, and compare TestNG and JUnit tests to provide a comprehensive course overview.
TestNG Versus JUnit
In this module, we will conduct an in-depth comparison between TestNG and JUnit, two popular testing frameworks. We begin by exploring the fundamental differences and similarities between them. Next, we will create unit tests for a SimpleClass using JUnit, adding assertions to validate the test cases. Through practical exercises, we will write additional unit test scenarios to solidify our understanding. We will then demonstrate how to write Selenium JUnit automation tests in multiple parts, highlighting the use of the WebDriver interface. Utilizing JUnit annotations like @Before and @After, we will reduce code duplication in test setups. The module then transitions to TestNG, where we convert our unit tests from JUnit to TestNG and explore its advanced features, including XML suite configuration, detailed test reports, parameterized tests, and parallel test execution. This module aims to provide a comprehensive understanding of both frameworks and their applications in automated testing.
Getting Started with HTML, CSS, and XPath
In this module, we will delve into the fundamentals of HTML and CSS, exploring their roles in web development. You will learn how the web functions, set up a development environment, and create your first HTML file. We will also cover basic tags, formatting, W3C standards, and the organization of content using lists and tables.

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Covers Selenium Grid and standalone server, which are essential for scaling automation tests effectively in professional QA environments
Explores TestNG and JUnit, which are widely used testing frameworks in the software development industry
Teaches the Page Object Model, a design pattern that enhances test maintainability and reduces code duplication in automation projects
Requires a fundamental knowledge of Java, which may exclude learners without prior programming experience
Uses Selenium IDE, which is a record-and-playback tool that may not be suitable for complex or dynamic web applications
Focuses on older versions of Selenium, JUnit, and TestNG, which may not align with the latest industry standards and best practices

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Advanced Java Concepts and Collections with these activities:
Review Core Java Concepts
Reinforce your understanding of fundamental Java concepts like object-oriented programming, data structures, and algorithms to prepare for the advanced topics covered in this course.
Show steps
  • Review notes and assignments from previous Java courses.
  • Complete practice problems on basic Java syntax and concepts.
  • Read articles or watch videos on core Java topics.
Review 'Head First Java' by Kathy Sierra and Bert Bates
Reinforce your understanding of core Java concepts with a fun and engaging book that covers the fundamentals in an accessible way.
View Head First Java: A Brain-Friendly Guide on Amazon
Show steps
  • Read selected chapters focusing on object-oriented programming and basic Java syntax.
  • Complete the exercises and puzzles in the book.
  • Discuss the book's concepts with peers or in online forums.
Review 'Effective Java' by Joshua Bloch
Gain a deeper understanding of Java best practices and design patterns to improve your coding skills and prepare for the advanced concepts covered in the course.
View Effective Java (3rd Edition) on Amazon
Show steps
  • Read selected chapters focusing on collections, generics, and exception handling.
  • Implement the recommendations from the book in your own code.
  • Discuss the book's concepts with peers or in online forums.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Implement custom data structures
Solidify your understanding of Java Collections by implementing custom versions of common data structures like ArrayList, LinkedList, and HashMap.
Browse courses on Data Structures
Show steps
  • Implement a basic ArrayList with add, remove, and get methods.
  • Implement a LinkedList with add, remove, and get methods.
  • Implement a HashMap with put, get, and remove methods.
Blog Post: Advanced Exception Handling Techniques
Deepen your understanding of exception handling by researching and writing a blog post on advanced techniques like custom exceptions, try-with-resources, and exception chaining.
Browse courses on Exception Handling
Show steps
  • Research advanced exception handling techniques in Java.
  • Write a blog post explaining these techniques with code examples.
  • Publish your blog post on a personal blog or online platform.
Create a Selenium Test Automation Framework
Apply your knowledge of Selenium, JUnit/TestNG, and Java to build a robust test automation framework for a web application.
Browse courses on Selenium
Show steps
  • Set up a Maven project with Selenium and TestNG/JUnit dependencies.
  • Implement the Page Object Model for a sample web application.
  • Write test cases using TestNG/JUnit to validate the functionality of the web application.
  • Integrate your framework with a CI/CD pipeline.
Contribute to a Selenium Open Source Project
Gain practical experience with Selenium and contribute to the open-source community by reporting bugs, writing documentation, or contributing code to a Selenium-related project.
Browse courses on Selenium
Show steps
  • Find a Selenium open-source project on GitHub or GitLab.
  • Identify a bug or feature request to work on.
  • Submit a pull request with your changes.

Career center

Learners who complete Advanced Java Concepts and Collections will develop knowledge and skills that may be useful to these careers:
Test Automation Engineer
A Test Automation Engineer develops and implements automated testing frameworks to ensure software quality. This role involves designing test plans, writing scripts to automate test cases, and analyzing results to identify defects. This course specifically helps by teaching you to use Selenium, a key tool for automating web applications. You will learn to handle form elements, manage windows, and set up cross-browser testing. Additionally, the course covers data-driven testing with CSV and Excel files, which are vital for creating comprehensive tests. The skills gained in this course are particularly relevant for creating robust automation scripts and scaling testing efforts effectively.
See salaries and explore the career path for Test Automation Engineer
Automation Specialist
An Automation Specialist focuses on using technology to automate tasks, often within software testing but also in other domains. This course is very helpful because you will gain hands-on experience with Selenium for web application automation and become proficient in using TestNG for project setup and debugging. The course's approach to cross-browser testing is very useful. You will also learn to implement data-driven testing for more comprehensive test coverage, all crucial aspects of an automation specialist's role.
See salaries and explore the career path for Automation Specialist
Software Test Engineer
A Software Test Engineer designs and performs tests to assess the quality of software products. They create test cases, execute automated and manual tests, and analyze test results. This course is perfect for aspiring Software Test Engineers because it provides instruction on Selenium, the main tool for web application testing automation. The course also covers TestNG, window navigation, alert handling, and WebDriver's methods, which are essential components you will need to master. You will also gain practical experience with implicit and explicit waits, crucial for dynamic testing environments.
See salaries and explore the career path for Software Test Engineer
Web Application Tester
A Web Application Tester specializes in testing and ensuring the functionality and quality of web applications. This role requires a deep understanding of both manual and automated testing techniques. This course is especially important as you will gain proficiency in Selenium, which allows you to automate interactions with web elements. The skills you will learn in form element handling, window navigation, and cross-browser testing are directly applicable to the day-to-day work of a Web Application Tester. By the end of this course, you will be equipped to scale your automation tests using the Page Object Model and Selenium Grid.
See salaries and explore the career path for Web Application Tester
Quality Assurance Analyst
A Quality Assurance Analyst is responsible for planning and executing tests on software applications to find bugs and ensure high quality. This role involves analyzing software requirements, developing test cases, and reporting defects. This course helps you by providing hands-on experience with Selenium automation, essential for automating tests, and with TestNG, which enhances project setup and debugging. Knowledge of locating elements, handling forms, and implementing waits from this course will help you write automation scripts efficiently. This course is essential for those wanting to perform advanced automated testing.
See salaries and explore the career path for Quality Assurance Analyst
Quality Engineer
A Quality Engineer focuses on ensuring that software and services meet specified quality standards through various types of testing and process improvements. This role involves a mix of technical understanding and attention to detail. This course will help build a foundation in automated testing with Selenium and TestNG. The instruction on handling form elements and managing windows, along with data-driven and cross-browser testing, directly enables Quality Engineers to test applications better.
See salaries and explore the career path for Quality Engineer
Automation Architect
An Automation Architect designs and oversees the architecture of test automation frameworks and tools. This role requires deep technical knowledge and the ability to create scalable, maintainable, and efficient testing solutions. The course's focus on Selenium, TestNG, Page Object Model, and Selenium Grid is very important, as they are vital components of a modern automation framework. The course's advanced topics, such as cross-browser testing and data-driven testing, ensure a complete understanding of the challenges and solutions required to build robust automated test infrastructure. Taking this course is very helpful for an aspiring Automation Architect.
See salaries and explore the career path for Automation Architect
Technical Test Lead
A Technical Test Lead oversees the activities of a team of software testers, providing technical guidance and ensuring adherence to quality standards. This role requires a mix of technical expertise and leadership skills. This course will be very helpful by teaching you to use Selenium and TestNG, which will greatly enhance your technical expertise. You will learn to handle form elements, manage windows, set up cross-browser testing and implement data-driven testing. By the end of this course, you will have the necessary experience to lead a team more effectively.
See salaries and explore the career path for Technical Test Lead
QA Automation Lead
A QA Automation Lead is responsible for overseeing the automation strategy and implementation within a quality assurance team. This role requires not only technical skills but also leadership and project management abilities. This course will be particularly useful since it provides you with a deep understanding of Selenium and the testing framework, TestNG. You will also learn about cross-browser testing, data-driven testing, and setting up advanced automation environments using Page Object Model and Selenium Grid, which will help you mentor and guide a team efficiently.
See salaries and explore the career path for QA Automation Lead
Test Case Developer
A Test Case Developer creates and documents detailed test cases based on software specifications. This role demands a strong understanding of software requirements and testing methodologies. This course very helpful as it teaches you how to use Selenium to automate test scenarios and how to use TestNG to set up projects, which are directly relevant to creating more robust and effective test cases. Your knowledge of HTML, CSS, and XPath aids in understanding web structure, essential for crafting accurate test steps.
See salaries and explore the career path for Test Case Developer
SDET
A Software Development Engineer in Test, or SDET, is a software developer involved in development and testing practices. This course will be helpful by providing a solid foundation in automated testing using Selenium and TestNG. SDETs must possess a comprehensive understanding of how to automate test cases and debug complex code. The course covers topics such as exception handling, Java collections, and generics, all of which are essential skills for ensuring software quality and robustness.
See salaries and explore the career path for SDET
Software Quality Analyst
A Software Quality Analyst ensures that software products meet specified quality standards. This role involves planning, executing, and documenting tests, and requires attention to detail and a strong analytical mind. This course may be useful by teaching how to automate tests using Selenium. It also provides practical skills in handling form elements, managing windows, implementing waits, and conducting cross-browser testing. These skills directly enhance your ability to analyze and ensure software quality, which is useful for your career as a Software Quality Analyst.
See salaries and explore the career path for Software Quality Analyst
Software Developer
A Software Developer builds and maintains software applications and systems. While this role isn't solely focused on testing, understanding test automation is a critical part of software development. This course may be useful because it introduces you to Selenium and TestNG, which enables developers to create robust, automated tests as part of the development process. Learning to handle exceptions properly, as discussed in the course, is also crucial for writing reliable code. The course's focus on collections, generics, and Java tips helps build a foundation in Java, a language commonly used for software development, which ensures code quality and robustness.
See salaries and explore the career path for Software Developer
Performance Tester
A Performance Tester analyzes system performance and identifies bottlenecks to ensure that software applications can handle expected loads. Although this course primarily focuses on functional testing, there is a crossover in skills that make this course useful. The knowledge you gain in understanding TestNG, setting up projects, and understanding the fundamentals of HTML, CSS and XPath are helpful for setting up tests. While this course doesn't specifically cover performance testing tools, the emphasis on systematic testing principles and automation provides a useful foundation.
See salaries and explore the career path for Performance Tester
Release Engineer
A Release Engineer manages the software release process, ensuring software changes are deployed smoothly to various environments. While this role is more focused on infrastructure and deployment rather than direct testing, this course provides helpful skills that still make it a useful course to have. The course's focus on automated testing, particularly its coverage of Selenium and TestNG, can help you understand the software development cycle better, and create better release processes. An understanding of page object models and data-driven tests can help improve overall release quality.
See salaries and explore the career path for Release Engineer

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Advanced Java Concepts and Collections.
Effective Java (3rd Edition)
Save
Provides invaluable insights into best practices for Java programming. It covers a wide range of topics relevant to advanced Java development, including collections, generics, and exception handling. 'Effective Java' is highly recommended for understanding the nuances of the Java language and writing robust, maintainable code. It is commonly used as a reference by industry professionals.
Effective Java (3rd Edition)
Paperback
Check
Effective Java (3rd Edition)
Kindle Edition
Check
Cover image
Head First Java
Save
Provides a solid foundation in Java fundamentals using a visually engaging and interactive approach. It's particularly helpful for those who need a refresher on core concepts before diving into advanced topics. While not as in-depth as other resources, 'Head First Java' is excellent for building a strong base and understanding the 'why' behind Java programming. It is commonly used as a textbook at academic institutions.
Head First Java: A Brain-Friendly Guide
Paperback
$$
Head First Java
Kindle Edition
$$

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Level
Intermediate
Via
Coursera
Institution
Packt
Instructor
Packt - Course Instructors
Session
January 13, 2025 - February 10, 2025
Language
English
Good to know
Covers Selenium Grid and standalone server, which are essential for scaling automation tests effectively in professional QA environments
Explores TestNG and JUnit, which are widely used testing frameworks in the software development industry
Teaches the Page Object Model, a design pattern that enhances test maintainability and reduces code duplication in automation projects
Requires a fundamental knowledge of Java, which may exclude learners without prior programming experience
Uses Selenium IDE, which is a record-and-playback tool that may not be suitable for complex or dynamic web applications
Focuses on older versions of Selenium, JUnit, and TestNG, which may not align with the latest industry standards and best practices
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