Lessons

An introduction to writing Java

Java · Introductory. Ten lessons. Open-book quizzes. Lesson 1 free.

10 lessons · The Host · Lesson 1 free

Pass all ten lessons for the certificate. Sample · Claim

  1. Lesson 1 · On the house

    Hello and main

    public static void main.

  2. Lesson 2

    Variables and types

    Primitives and locals.

  3. Lesson 3

    Strings

    Immutable text.

  4. Lesson 4

    If and else

    Branches.

  5. Lesson 5

    Loops

    for, while, enhanced for.

  6. Lesson 6

    Arrays

    Fixed length.

  7. Lesson 7

    Methods

    Static helpers first.

  8. Lesson 8

    Classes and objects

    new and fields.

  9. Lesson 9

    Packages sketch

    package and import.

  10. Lesson 10

    A small Java program

    Compose array, method, print.

Sample certificate

Certificate of completion

Sign in to claim your certificate of completion.

Certificate

Finish all ten lessons, then sign in

Pass every lesson on this device (quizzes and checks). Then sign in or create an account to type your name and download the JPG.

All lessons

An introduction to writing Java — The Gold Standard