Learn

Hands-on coding courses — Python, Java, and data structures. Short lessons, runnable examples, and exercises after every topic.

🐍
Coding

Python

From your first print() to classes, files, and exceptions.

9 lessons

1Hello, Python8 min · Beginner 2Variables and Types12 min · Beginner 3Control Flow15 min · Beginner 4Functions14 min · Beginner 5Lists and Tuples16 min · Beginner 6Dictionaries and Sets14 min · Beginner 7Classes and Objects18 min · Intermediate 8File Handling12 min · Intermediate 9Error Handling13 min · Intermediate
☕
Coding

Java

Static typing, OOP, and the collections you use every day.

6 lessons

1Hello, Java10 min · Beginner 2Variables and Types14 min · Beginner 3Control Flow15 min · Beginner 4Classes and Objects18 min · Intermediate 5Collections Framework17 min · Intermediate 6Exception Handling13 min · Intermediate
🧱

Data Structures

Arrays, lists, trees, graphs, and why Big O matters.

8 lessons

1What Are Data Structures?10 min · Beginner 2Arrays12 min · Beginner 3Linked Lists14 min · Intermediate 4Stacks and Queues13 min · Intermediate 5Trees16 min · Intermediate 6Hash Tables14 min · Intermediate 7Graphs16 min · Advanced 8Big O Notation15 min · Intermediate