java package tutorial
Define Packages in Java?
A Package can be defined as a grouping of related types (classes, interfaces, enumerations and annotations) providing access protection and name space management.
Why Packages are used?
Packages are used in Java in-order to prevent naming conflicts, to control access, to make searching/locating and usage of classes, interfaces, enumerations and annotations, etc., easier.
What do you mean by Access Modifier?
Java provides access modifiers to set access levels for classes, variables, methods and constructors. A member has package or default accessibility when no accessibility modifier is specified.
What is protected access modifier?
Variables, methods and constructors which are declared protected in a superclass can be accessed only by the subclasses in other package or any class within the package of the protected members’ class.