Lecture 1: Intro to the course & getting started with Java

Today, we’ll go through the course syllabus and learn how to install Java on our machines. We’ll also see our first Java program.

lecture audio (forgot to record screen)

Getting set up to write Java programs

  • Download and install the Java JDK. For Mac, choose the .dmg extension. For Windows, choose the .exe extension.
  • Download and install the Eclipse Integrated Development Environment (IDE). When prompted by the installer, select “Eclipse IDE for Java Developers”

Note: you can use other IDEs such as Netbeans or IntelliJ or compile and run Java programs using the command line; however, all class demonstrations will be done in Eclipse, so the easiest way to keep up with the class will be to use that.

Running your first Java program

Follow these steps:

  • open Eclipse
  • create a new Java project (uncheck “Create module-info.java file”)
  • inside the src folder, create a new Package
  • inside the Package, create a new Class
  • use the green play button to run

Files used in class

HelloWorld.java

Why Java?

  • Learn a new language
  • Used in industry
  • Good for collaboration
  • Fast
  • Large standard library