Java — Beginner

Java — Complete Tutorial (Beginner): 13 topics and 39 interactive cards with runnable examples and quizzes.

Topics

1. Introduction to Programming & Java — What is Programming? · What is Java?
2. Your First Java Program — Hello World! · Understanding println and print
3. Variables — Your Data Containers — What is a Variable? · Declaring, Assigning, and final · Naming Conventions · Variables in Action: A Full Example
4. Data Types — Kinds of Values — Primitive Types and Why Type Matters · Numbers: int and double · boolean and char · Type Casting and var
5. Operators & Expressions — Arithmetic Operators · Comparison Operators · Logical & Assignment Operators
6. Conditional Statements — if / else if / else · The switch Statement · The Ternary Operator
7. Loops & Iterations — The for Loop · while and do-while · Enhanced for, break & continue
8. Methods — What is a Method? · Parameters and Return Values · Method Overloading & Composition
9. Arrays & Lists — Arrays · ArrayList: A Growable List · Processing Arrays
10. Objects & Classes — Classes and Objects · Fields, Constructors & this · Many Objects from One Class
11. Strings — Working with Text — String Basics & Methods · Comparing Strings & Formatting
12. Exception Handling — try / catch / finally · Throwing Exceptions
13. Mini-Projects & Practice — Simple Calculator · Grade Reporter · Number Guessing Game · Practice Exercises · Now You Try!