November 24, 2013 · 1 min read
**A) Packages**2. [Predefined Packages – Java API](http://way2java.com/packages/predefined-packages-%e2%80%93-java-api/)
May 8, 2013 · 3 min read
###### Java Import Classes: A **package** is the style of Java to group the classes and interfaces together, or to say, a **package is a collection of related predefined classes and interfaces**. Packages are sets of classes and interfaces built into Java Development Kit (JDK). A package places restrictions (to the classes of other packages) to access its enclosed classes. Access specifiers work on package boundaries (between the classes of different packages).