Step 1

Day 0: Hello, World.

Step 2

Day 1: Data Types

Step 3

Day 2: Operators

Step 4

Day 3: Intro to Conditional Statements

Step 5

Day 4: Class vs. Instance

Step 6

Day 5: Loops

Step 7

Day 6: Let's Review

Step 8

Day 7: Arrays

Step 9

Day 8: Dictionaries and Maps

Step 10

Day 9: Recursion

Step 11

Day 10: Binary Numbers

Step 12

Day 11: 2D Arrays

Step 13

Day 12: Inheritance

Step 14

Day 13: Abstract Classes

Step 15

Day 14: Scope

Step 16

Day 15: Linked List

Step 17

Day 16: Exceptions - String to Integer

Step 18

Day 17: More Exceptions

Step 19

Day 18: Queues and Stacks

Step 20

Day 19: Interfaces

Step 21

Day 20: Sorting

Step 22

Day 21: Generics

Step 23

Day 22: Binary Search Trees

Step 24

Day 23: BST Level-Order Traversal

Step 25

Day 24: More Linked Lists

Step 26

Day 25: Running Time and Complexity

Step 27

Day 26: Nested Logic

Step 28

Day 27:

Step 29

Day 28: RegEx, Patterns, and Intro to Databases

Step 30

Day 29: Bitwise AND