Java Packages

Java Packages

The Java packages are really ways to organize the many methods and classes that are part of the Java language. The packages are named in dotted syntax in lowercase. There are many packages and more being added. There are only 4 packages that we will work with in this class. You may choose to use others in your applets and will have to research to learn about them. We will cover the basic of our 4 packages here:

java.lang- This package is the main Java language package and is automatically on anytime you load up the Java Virtual Machine. It contains the most basic class, Object on which all other objects are based on. You never have to import java.lang into your applets because it is always "on". You sometimes uses the classes and corresponding methods in your coding, but a lot of them are "behind the scenes" type of base classes of the language.

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