Structured curriculum

Java lessons that lead to real apps

Each lesson gives you one clear concept, a reusable code pattern, and a tiny build challenge to make the idea stick.

Path

Foundation 18 min

Understand classes, the main method, statements, and how Java turns source code into a running program.

Class structuremain methodSystem.out.println

Foundation 24 min

Store names, numbers, prices, and true-or-false values with Java’s most useful primitive types.

Stringintdoubleboolean

Foundation 31 min

Control the path of your program with if statements, for loops, and while loops.

if / elsefor loopwhile loop

Core Java 36 min

Organize reusable behavior and work with ordered collections of values.

MethodsParametersArrays

Core Java 42 min

Model real app data by designing classes with fields, constructors, and methods.

FieldsConstructorsInstances

Core Java 48 min

Use ArrayList and Map to manage app data safely, then handle expected problems gracefully.

ArrayListHashMaptry / catch

Application Builder 55 min

Combine models, services, and a console interface into a maintainable Java application.

Separation of concernsModelsServices

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