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YOUR JAVA LEARNING PATH

A little more Java.
A little more confidence.

One idea at a time, with examples you can follow and checkpoints to see what’s clicking. New here? Begin with chapter one. Know a little already? Jump right in.

Before you start

No previous Java required. Intro to Java explains how a small program runs; objects, types, methods, and collections are introduced as you progress.

Review a foundation whenever you need it: Intro to Java

Start chapter one Ready for the final?
13 open chapters. Your progress is saved as you go.

Your chapters

Choose any starting point
  1. 01

    Intro to Java

    Beginner

    Trace a small program from source code to printed output.

    Start here, or skip ahead
    Open chapter: Intro to Java
  2. 02

    Using objects

    Beginner

    Call object methods and reason about references and immutable strings.

    Open whenever you’re ready
    Open chapter: Using objects
  3. 03

    Data types

    Beginner

    Choose primitive types and predict arithmetic and conversion results.

    Open whenever you’re ready
    Open chapter: Data types
  4. 04

    Classes

    Intermediate

    Define state, constructors, and instance methods for a small object.

    Open whenever you’re ready
    Open chapter: Classes
  5. 05

    Decisions

    Beginner

    Build mutually exclusive branches and safe compound conditions.

    Open whenever you’re ready
    Open chapter: Decisions
  6. 06

    Iteration

    Intermediate

    Use loops with clear bounds, progress, and accumulators.

    Open whenever you’re ready
    Open chapter: Iteration
  7. 07

    Arrays and ArrayLists

    Intermediate

    Traverse fixed arrays, resizable lists, and two-dimensional structures.

    Open whenever you’re ready
    Open chapter: Arrays and ArrayLists
  8. 08

    Sorting and searching

    Intermediate

    Use order deliberately when selecting a search or sorting algorithm.

    Open whenever you’re ready
    Open chapter: Sorting and searching
  9. 09

    Designing classes

    Intermediate

    Protect invariants through constructors and cohesive public methods.

    Open whenever you’re ready
    Open chapter: Designing classes
  10. 10

    Interfaces and polymorphism

    Advanced

    Program against a contract and trace runtime method dispatch.

    Open whenever you’re ready
    Open chapter: Interfaces and polymorphism
  11. 11

    Inheritance

    Advanced

    Extend behavior while preserving a usable superclass contract.

    Open whenever you’re ready
    Open chapter: Inheritance
  12. 12

    Exception handling

    Advanced

    Handle a specific failure without concealing unrelated errors.

    Open whenever you’re ready
    Open chapter: Exception handling
  13. 13

    Recursion

    Advanced

    Prove progress toward a base case and trace returned results.

    Open whenever you’re ready
    Open chapter: Recursion

PUT IT TOGETHER

Final assessment & certificate

30 multiple-choice questions and 4 written coding problems. Pass the knowledge section at 80% overall and at least 50% in every chapter area, complete and review the written practice, and meet the attempt-integrity checks to unlock your certificate.

The certificate records a CodeQuest foundations assessment. Written work is self-reviewed; identity and independent proficiency are not verified.

Open final assessment

Take an issuer-recorded assessment with a verifiable certificate

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