What is a Java package and how it is used?

Package in Java is a mechanism to encapsulate a group of classes, sub packages and interfaces. Packages are used for: Preventing naming conflicts. For example there can be two classes with name Employee in two packages, college.

How can we create and use package in Java program?

To create a package, you choose a name for the package (naming conventions are discussed in the next section) and put a package statement with that name at the top of every source file that contains the types (classes, interfaces, enumerations, and annotation types) that you want to include in the package.

Do you need a package in Java?

You never need to put a class in a package. However, it is almost always a good idea. This is something that Netbeans aggressively tries to encourage you to do. For small projects, using the default package (that is, a file without a package statement) is OK.

What is package explain with example?

A package is a namespace that organizes a set of related classes and interfaces. Conceptually you can think of packages as being similar to different folders on your computer. You might keep HTML pages in one folder, images in another, and scripts or applications in yet another.

What is a package give an example?

Package refers to as a container that contains all the parts combined. Example: The computer processor consists of all the parts required for the working of a system. Example: ms-office is a software that has sub software applications/modules like: ms-word.

How do I create and use a package?

Choose a name for the package and include a package command as the first statement in the Java source file. The java source file can contain the classes, interfaces, enumerations, and annotation types that you want to include in the package. For example, the following statement creates a package named MyPackage.

What is package in Java Mcq?

Explanation: Packages are both naming and visibility control mechanism. We can define a class inside a package which is not accessible by code outside the package.

What is package name in Java?

A package as the name suggests is a pack(group) of classes, interfaces and other packages. In java we use packages to organize our classes and interfaces. We have two types of packages in Java: built-in packages and the packages we can create (also known as user defined package).

What is a package in Internet programming?

A Package can be defined as a grouping of related types (classes, interfaces, enumerations and annotations ) providing access protection and namespace management. Some of the existing packages in Java are − java.lang − bundles the fundamental classes.

How do I create a package in Java?

How to create a package in java. When creating a package, you should choose a name for the package and put a package statement with that name at the top of every source file that contains the classes, interfaces, enumerations, and annotation types that you want to include in the package.

What are the advantages of using packages in Java?

Reuse of code. The most common advantages of packages in java are reusability.

What is difference between import and package in Java?

Creating a package

What are the different types of package in Java?

Java Packages&API. A package in Java is used to group related classes.