Lessons

Java · Easy

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

10 lessons · The Host · Lesson 1 free

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  1. Lesson 1 · On the house

    ArrayList

    Resizable lists.

  2. Lesson 2

    HashMap

    Key-value maps.

  3. Lesson 3

    Interfaces

    implements contracts.

  4. Lesson 4

    Exceptions

    checked vs unchecked.

  5. Lesson 5

    equals and hashCode

    Value equality.

  6. Lesson 6

    Javadoc sketch

    Document public APIs.

  7. Lesson 7

    Records

    Compact data carriers.

  8. Lesson 8

    Streams sketch

    map/filter/collect.

  9. Lesson 9

    Unit tests (JUnit idea)

    Assertions.

  10. Lesson 10

    Easy capstone

    List + map + method.

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Java · Easy — The Gold Standard