Definition

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

Categories-
1- Built in packages
– also called as predifined 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
qlfdname
b- by importing package.class (recommended)
pck-clas

c- by importing full package*
pck-ful

Note– importing package doesn’t include subpackage

Static Import– used to import only static member of a class instead of class.
pck-sttc

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