Ein-/Ausgabe und Streams in Java

Learn how to create, read, write, and delete files in Java. You’ll also explore how to work with folders and file paths to organize and manage data on your system.

Work with lists and collections in Java as you learn to safely navigate and update data. You'll also explore modern techniques for filtering, transforming, and summarizing information with clarity and efficiency.

Practice building your own reusable methods while working with dates, times, and fixed sets of values. You’ll strengthen your problem-solving skills and learn to design cleaner, more organized code.