Java Programming Level 2: OOP, Collections, and Modern Features

Ready to take your Java skills beyond basic syntax and simple loops? Moving from basic code to structured, maintainable software requires a solid grasp of object-oriented principles and modern Java conventions. This text-only course guides you through the next stage of your Java journey. You will learn how to structure complex programs, handle errors gracefully, manage data collections efficiently, and write clean, modern Java code. What you'll learn: 1. Understand core Object-Oriented Programming principles including inheritance, polymorphism, and encapsulation. 2. Manage application data using the Java Collections Framework, including lists, sets, and maps. 3. Handle runtime errors and exceptional conditions using robust try-catch blocks and custom exceptions. 4. Apply modern Java features such as lambda expressions, stream API, and record types for cleaner code. 5. Read and write data files using Java I/O streams and modern file handling techniques. 6. Practice structuring Java applications with clean package organization and proper naming conventions. The course begins with foundational object-oriented design concepts, ensuring you understand the mechanics of classes and interfaces, before progressing to collections, error handling, and modern functional programming patterns. This course is designed for learners who already know basic Java syntax (such as variables, loops, and simple methods) and want to progress to intermediate programming concepts. No advanced background is required. Start reading to elevate your Java programming skills and build more robust applications today.