After doing these courses, I feel confident creating professional visualizations and dashboards
Shoebur RahmanProcurement Specialist, Giz Bangladesh
Course Description
Build real-world Java skills by working hands-on with file management, data collections, and custom methods. This course helps you move beyond the basics to write cleaner, more efficient, and maintainable Java code.
Work with Files and Directories in Java
Start by learning how to create, delete, and check files. You’ll read and write text using file-handling tools and manage directories and file paths to organize data effectively.Process and Transform Data with Java Collections
Next, explore how to handle collections of data in Java. You’ll safely loop through lists, modify elements, and use modern techniques to filter, transform, and summarize data using a functional approach.Write Reusable Java Code with Methods, Dates, and Enums
Finally, you’ll build custom methods to solve common problems, work with dates and times, and use enums to represent fixed sets of values. You'll apply recursion and clean coding practices to write flexible, reusable Java programs.What You’ll Achieve
By the end of the course, you’ll have the skills to manage files, process data collections, and create scalable, maintainable Java applications with confidence.Prerequisites
Curriculum
Course outline
1
Introduction to Input/Output Operations
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.
- Understanding Java File Operations50 XP
- Pointing to your first note100 XP
- Storing Recent Notes in Cache100 XP
- Reading and writing files50 XP
- Writing and Reading a Note100 XP
- Handling Long Notes Efficiently100 XP
- Managing directories and paths50 XP
- Organizing notes into a folder100 XP
- Verifying note locations100 XP
2
Iterators and Streams
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.
3
Custom Methods, Date/Time and Enums
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.
J
Input/Output and Streams in Java
Course
Complete
