💡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.

Interview Questions —

• How packages are related to access modifiers?
• How many ways are available to import class of other packages?