Add external libraries to a project

- [Instructor] Java based applications…frequently depend on external libraries, known as JAR Files.…These are zip files, packaged with a description…of the classes they contain, known as a manifest.…To use these libraries from the command line,…you have to add them to, what's known in Java,…as the CLASSPATH, a list of directories and libraries,…where you store dependent code.…IntelliJ IDEA makes it easy though,…to package these without having to deal with…environment variables, and other cumbersome mechanisms.…To demonstrate this, I'm working with a very simple project,…that creates a person object,…and creates an array of strings, named colors.…

I want to turn those values into JSON strings.…That is Java Script Object Notation.…And for that, I'm going to use a library called gson.…This is an open-source library from Google,…that you can download from a number of different locations.…I've included it in the exercise files directory,…for this video.…I'll copy the JAR File to my clipboard,…then I'll go back to IntelliJ IDEA.…