Core Java for the Impatient

Cay Horstmann

Software Installation Instructions

The Java Development Kit

Visit https://adoptium.net/
Select Latest LTS Release
Windows/Mac OS: The installer will be downloaded. Run it.
Linux: Uncompress the .tar.gz file to a convenient place (such as your home directory or /opt). Add the bin subdirectory to your PATH—see these directions.
To test your installation, open a terminal window and type
```
javac -version
```
You should get a response such as
```
javac 21.0.15
```

Note: You can use the book with any Java Development Kit, from Adoptium to Zulu. The JDK from Oracle is fine too for learning, but it has more restrictive licensing conditions for deployment.

Eclipse

Visit http://www.eclipse.org/downloads
Select the Eclipse IDE Installer
Run the installer. (In Linux, you need to uncompress the downloaded file first.)
Select the Eclipse IDE for Java Developers
Launch Eclipse.
Download and unzip the book's companion code in a convenient place.
In Eclipse, select File → Projects → New Project
In the project wizard, select Java → Java Projects and click on Next
In the Project Name field, type Java for the Impatient
Uncheck the Use the default location checkbox and browse to the src subdirectory of the javaimpatient directory
Click Finish

Note: Nothing in the book depends on Eclipse. If you prefer, you can use another IDE. Popular choices include