Inhalt: To create functional and useful Python applications, you need a database. Databases allow you to store data from user sessions, track inventory, make recommendations, and more. However, Python is compatible with many options: SQLite, MySQL, and PostgreSQL, among others. Selecting the right database is a skill that advanced developers are expected to master. This course provides an excellent primer, comparing the different types of databases that can be connected through the Python Database API. Instructor Kathryn Hodge teaches the differences between SQLite, MySQL, and PostgreSQL and shows how to use the ORM tool SQLAlchemy to query a database. The final chapters put your knowledge to practical use in two hands-on projects: developing a full-stack application with Python, PostgreSQL, and Flask and creating a data analysis app with pandas and Jupyter Notebook. By the end, you should feel comfortable creating and using databases and be able to decide which Python database is right for you. Umfang: 04:51:08
Inhalt: Writing programs in C# is one thing. Writing programs that work is another. Discover how debugging your applications can make them more accurate, efficient, and reliable. Learn exactly what it means to debug your programs, and how tools like Visual Studio Code-the most popular IDE for C# programmers-can help you identify and solve errors in your code. Instructor Kathryn Hodge reviews the basic debugging process and introduces tips and tricks to reduce bugs and make your programs more secure. She also reviews the most common errors in C#-issues like null reference exceptions and logical errors-and provides three coding challenges to help you practice your debugging skills. Umfang: 01:20:09.00
Inhalt: Java 10 and 11 have arrived and developers are eager to use the new features in their projects. This course reviews the latest and greatest versions of Java, released in March and September 2018. Instructor Kathryn Hodge starts with the most noteworthy enhancements in Java 10, such as local variable type inference with the var keyword, application class-data sharing (CDS), thread-local handshakes that enable pausing of a single thread, and Gral, the experimental just-in-time compiler. Then she moves onto Java 11, which allows var to be used for lambda parameters; standardizes the HTTP client; and enables the Java launcher to run a program supplied as a single file of Java source code. Many other performance and security enhancements are reviewed along the way. This course is a great resource for any developer who wants to get up to speed quickly with the latest developments in the Java platform. Umfang: 00:31:48.00
Inhalt: You don't have to be intimidated by tech if you gain a foundational understanding of a few core principles. This course gives you insight on how to think like an engineer so that you can feel empowered to create a program, build a website, or even make a mobile app. Software engineer Kathryn Hodge summarizes and analogizes computer science in a simple and logical way as she explains fundamental processes and tools used in programming. Learn about the factors engineers consider as they plan, the processes they perform when creating solutions, and the way they analyze the effectiveness of their technology. Discover how systematic thinking can be something you leverage whether your next step is in the direction of data science or development. Umfang: 00:20:55.00
Inhalt: How do you get better at writing code in Java? You practice, of course. Test your Java skills with these hands-on practice challenges. In this course, instructor Kathryn Hodge presents a variety of concise (five minutes or less) beginner, intermediate, and advanced code challenges that you can use to test your skills. The lessons are independent, so you can skip around and watch them in any order. For each challenge, Kathryn provides a walkthrough solution and automated testing files. The goal of this course is not only to develop your skills in Java, but also to show you some tricks of the trade that software developers in the industry use every day. Umfang: 01:07:33
Inhalt: Are you familiar with Java but want to get the most out of your Java programs? In this course, Kathryn Hodge teaches the basics of object-oriented programming in Java, so you can write code that's secure, scalable, and easier to troubleshoot. Kathryn begins by showing how object-oriented principles are embedded into the Java language from the first code file you create. She looks at how classes, instances, and constructors embody the idea of representing real-life objects in code. Kathryn not only shows how to apply object-oriented principles in your own programs, but also explains how Java leverages these principles behind the scenes. While many resources about object-oriented programming focus on abstract examples, the goal of this course is to get away from the abstract and focus more on practical examples of these principles in Java. Along with deep dives into the source code, this course also provides several challenges and solutions to help you apply what you've learned. Umfang: 01:59:23
Inhalt: Many software developers write features and merge them into QA without any insight into their application's infrastructure. If you're a developer who's curious about the infrastructure that helps serve your application to customers-as well the decisions that must be made to keep your app working smoothly-then this course is for you. Join instructor Kathryn Hodge as she delves into the topic of infrastructure, explaining how the code you write fits into the rest of the technology stack. Get an overview of how the internet works, and discover how you can run your code locally with localhost. Learn how to build a remote computer on the cloud and access it using the SSH protocol. Discover how to determine where your servers live, balance traffic using load balancers, and push your code to the internet. Plus, explore advanced topics that are important to building high-availability applications, such as blue-green deployments, traffic flow, and scaling vertically or horizontally. Umfang: 01:18:44
Inhalt: Java is one of the top five programming languages, and is used for websites, embedded controllers, and Android app development. Interested in learning how to code with Java? Join instructor Kathryn Hodge as she helps you get up and running with this popular language. Kathryn covers all the basics: data types, strings, functions, and loops. She helps you control the flow and logic of your code, and debug your project to make sure it runs perfectly. Along the way, she provides real-world examples and introduces challenges that allow you to practice your new skills. This course is perfect for developers who need to get up to speed with Java fast, as well as for beginning programmers who want their first taste of this popular language. Umfang: 02:39:53.00
Inhalt: Java is one of the top five programming languages, and is used for websites, embedded controllers, and Android app development. This is an introduction to get you started programming with Java 9-and the newly introduced JShell. Instructor Kathryn Hodge covers all the basics: data types, strings, arrays, loops, and functions. She helps you control the flow and logic of your code, and debug your project to make sure it runs perfectly. Then go a bit beyond the basics and learn advanced techniques such as encapsulation, inheritance, functional programming, and lambdas. Kathryn introduces challenges along the way to practice your new skills. This three-hour course is perfect for developers who need to get up to speed with Java fast, as well as for beginning programmers who want their first taste of this popular language. Umfang: 02:11:38.00
Inhalt: Python libraries can cut your development time and reduce your frustration with coding. In this Python 3 course, follow Kathryn Hodge as she walks through the Python standard library. Discover how familiarizing yourself with its facilities can make writing code in this concise, elegant language a little easier. Familiarize yourself with the library's built-in functions, math modules, and input and output modules. Learn how to get information from the Internet with the HTTP module, and more. Umfang: 02:10:20.00
Inhalt: Have you lined up an interview for a Java developer position? In this course, review critical Java concepts-and commonly-asked interview questions-to ensure that you approach your Java interviews with confidence. Instructor Kathryn Hodge dives into a discussion of key topics that might appear as questions in an interview, such as the difference between the Java Runtime Environment (JRE) and the Java Development Kit (JDK). She also goes over string manipulation, data structures, and essential object-oriented programming concepts. Throughout the course, Kathryn offers examples that lend a real-world context to the concepts she covers. Umfang: 02:00:05.00
Inhalt: Have you lined up an interview for a Java developer position? In this course, review critical Java concepts-and commonly-asked interview questions-to ensure that you approach your Java interviews with confidence. Instructor Kathryn Hodge dives into a discussion of key topics that might appear as questions in an interview, such as the difference between the Java Runtime Environment (JRE) and the Java Development Kit (JDK). She also goes over string manipulation, data structures, and essential object-oriented programming concepts. Throughout the course, Kathryn offers examples that lend a real-world context to the concepts she covers. Umfang: 02:48:59
Inhalt: Software is written by humans-and humans can make mistakes. Before suggested changes are integrated into a codebase, they are often reviewed and approved by other programmers. A large amount of developers' time is spent on code reviews. However, this skill is rarely taught. This course remedies that oversight, starting with the what, who, and why of code reviews. It then explores the how, showing how to thoroughly review everything from implementation details to maintainability and design aspects of code. Instructor Kathryn Hodge also introduces best practices for reviewing code on the cloud and implementing and committing changes to a codebase. In the last chapter, you can explore how to submit your own code for review and respond to comments. Take the challenges issued along the way to practice your new skills. By the end of the course, you'll have the knowledge needed to become a great code reviewer, saving valuable resources and influencing future design changes at your organization. Umfang: 01:19:00
Inhalt: Once you get past simple programs with one or two variables, you'll use data structures to store the values in your applications. Data structures are like containers-there's one for every kind of data. While structures like arrays and queues are sometimes taken for granted, a deeper understanding is vital for any programmer who wants to know what's going on "under the hood" and understand how the choices they've made impact the performance and efficiency of their applications. In this course, Kathryn Hodge provides an in-depth overview of the most essential data structures for modern programming. Starting with simple ways of grouping data, like arrays and structs, Kathryn gradually introduces more complex data structures, such as linked lists, stacks and queues, hash tables, and trees and graphs. Each lesson is accompanied by a real-world, practical example that shows the data structures in action. When you're finished with the course, you'll have a clear understanding of data structures and understand how to use them-in whatever language you're programming in: C#, Swift, JavaScript, Java, Python, and more. Umfang: 02:20:57.00
Inhalt: When you're working with files of any kind, nothing saves time like automation. No one wants to spend a day manually editing or renaming 1000 files. In this course, Kathryn Hodge shows you how to use Python to automate operating system tasks, aggregate data across multiple sources, save results to files, and level up your Python applications. Kathryn starts by introducing the idea of the file system with absolute versus relative paths, directory structures, and more. From there, she explores how to use tools from the Python Standard Library to retrieve metadata about the files and paths located on your machine. Once you know how to navigate to the appropriate files you want to work with, she shows how to process files with Python, parsing data not only in text formats, but also JSON and CSV. Finally, Kathryn looks at writing data to different file types and explains how to store that data within an archive well as with temporary files. Umfang: 01:42:33
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