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Java Essentials

From your first program to writing real Java services.

Learn Java the right way: install the JDK, write your first program, master the type system, control flow, classes, inheritance, generics, collections, and exception handling. Built for engineers who want a strong foundation.

5 modules 10 lessons ~12h Certificate of completion
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Syllabus

  1. Module 1

    Setup and syntax

    Install Java and run your first program.

    2 lessons
    1. Install Java and run your first program →
    2. Variables and types →

  2. Module 2

    Control flow

    Make decisions and repeat work.

    1 lesson
    1. Control flow →

  3. Module 3

    Object-oriented Java

    Classes, inheritance, interfaces.

    3 lessons
    1. Classes and objects →
    2. Inheritance and polymorphism →
    3. Interfaces and abstract classes →

  4. Module 4

    Collections and generics

    The Collections framework and parametric types.

    2 lessons
    1. Collections framework →
    2. Generics basics →

  5. Module 5

    Modern Java

    Lambdas, streams, and exceptions.

    2 lessons
    1. Streams and lambdas →
    2. Exceptions and errors →

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