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Important Software to Have

The Java Development Kit

Developing Java programs requires that the Java Development Kit (JDK) be installed on your machine, which can be found here:

https://www.oracle.com/java/technologies/downloads

Make sure you select the right version for your operating system (Linux/macOS/Windows)

The Eclipse IDE

While not required to develop Java programs, an integrated development environment (IDE) makes doing so a vastly more efficient process. Eclipse is considered to be the choice du jour of IDEs by many professional programmers.

To get started with Eclipse, you should install the "Eclipse IDE for Java Developers" which can be found here: http://www.eclipse.org/downloads/

You will discover, as you use different applications to edit your code on different machines, that tab characters in your code can often be a nuisance. To this end, it is highly recommended, once you get Eclipse installed, to do the following, which will force Eclipse to use spaces instead of tab characters when indenting:

• Click Window → Preferences.
• Expand Java → Code Style.
• Click Formatter.
• Click the Edit button.
• Click the Indentation tab.
• Under General Settings, set Tab policy to: "Spaces only".
• Click OK ad nauseam to apply the changes.

IntelliJ IDEA

For those interested, Jet.Brains provides an alternative integrated development environment to Eclipse, as mentioned above, found at the link below:

https://www.jetbrains.com/idea/download/