What is the need of package in java?

Answer 1

Packages are containers-for-classes used to keep the class namespace compartmentalized.

Using Package,

1. We can define classes inside a package that are notaccessible by the code outside that package.

2. We can define class members that are only accessible by code inside that package.

3. We can have a class stored in a package withoutconcern that it will collide with some other class (havin same name), stored else where.

Package is basically a collection of predefined or ready-made classes that can be used in your java program to make shorter as well as easier. Package- import java.lang.*; is always implicitly called when you write a java program.

Answer 2

packages are collection of similar classes grouped together.

This is a way to organize files when a project consists of multiple modules. It also helps resolve naming conflicts when different packages have classes with the same names. Packages access level also allows you to protect data from being used by the non-authorized classes.

Answer 3

This is a way to organize files when a project consists of multiple modules. It also helps resolve naming conflicts when different packages have classes with the same names. Packages access level also allows you to protect data from being used by the non-authorized classes.

Answer 4

A package is a grouping of related types providing access protection and name space management. Here the term types may refer to classes, interfaces, enumerations, and annotation types. You can enclose all these into a package for easier identification.

For ex: the java.io package provides us with all java classes that can be used for input output operations.

Answer 5

A package is mechanism that provides additional grouping. They are intended to group similar classes together and to limit scope to avoid classes with the same name.