Welcome to Java

Introduction to Java

Jim White

Java Developer

Your instructor - Jim White

$$

  • Software developer and manager
  • Working with Java since (almost) its inception

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Picture showing Jim White

Introduction to Java

How will you learn?

Using the DataCamp Coding Exercise Interface.gif

Introduction to Java

Who is this course for?

  • Anyone

  • Java:

    • Syntax is stricter and less intuitive than, e.g., Python or JavaScript
    • Flexible and scalable

  • Steeper learning curve

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Introduction to Java

What is Java?

  • High-level, general-purpose, memory-safe, object-oriented programming language

Bar plot showing Java was the second most popular programming language in 2024.jpg

1 https://softjourn.com/insights/is-java-still-used
Introduction to Java

Where is Java?

Google, Amazon, Netflix, and Android logo

Introduction to Java

Starting out

Java class with the main method

Introduction to Java

Java organizes code into classes

Java class and main method, with class highlighted

Introduction to Java

main method is the entry point

Java class and main method, with class and the main method highlighted

Introduction to Java

Printing out - how not to do it

Java class and main method, with "Hello Java!" inside

Introduction to Java

Printing out - how not to do it

Java error message displaying as a result of this code

Introduction to Java

Printing out - the correct way

Printing "Hello Java!" using the System.out.println, which is highlighted

Introduction to Java

Let's practice!

Introduction to Java

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