Definition

– Group of similar types of classes, interfaces and subpackages.

Categories-

1- Built in packages

– also called as predefined packages in java
 i.e- java.lang, java.util, java.io etc

2- User defined packages

-also called as developer/user defined packages

[To use class of other package, we have 3 options to choose]

a- using fully qualified name

b- by importing package.class (recommended)

c- by importing full package*

Note– importing package doesn’t include subpackage

Static Import–

used to import only static member of a class instead of class.