Home / Java
Java
The write-once, run-anywhere language: programs and variables, methods and classes, inheritance and interfaces, collections and exceptions. Every example is compiled and run with the real Java compiler.
Start learning ❯❯48 lessons · 12 topics · 0/48 completed
Course contents
Work top to bottom — the sidebar is the course. Topics later in the list assume the ones before them.
Java Introduction
Beginner · ⏱ 4 min · standalone lesson
Getting Started
Start: Java Get Started ❯Variables and Types
Start: Java Variables ❯Operators and Text
Start: Java Operators ❯Conditions and Loops
Start: Java If...Else ❯Arrays
Start: Java Arrays ❯Methods
Start: Java Methods ❯Classes and Objects
- Java Classes and Objects
- Java Class Attributes
- Java Class Methods
- Java Constructors
- Java Modifiers
- Java Encapsulation
Inheritance and Interfaces
Start: Java Inheritance ❯Data and Collections
- Java User Input
- Java Dates
- Java ArrayList
- Java LinkedList
- Java HashMap
- Java HashSet
- Java Iterator
- Java Wrapper Classes
Handling Errors
Start: Java Exceptions ❯Java Project: Class Grade Book
Beginner · ⏱ 9 min · standalone lesson