Java how do packages work

Then we will modify our code as. Step 9 To execute the code mention the fully qualified name of the class i. To create an object of a class bundled in a package , in your code, you have to use its fully qualified name. But, it could become tedious to type the long dot-separated package path name for every class you want to use.

Instead, it is recommended you use the import statement. Example : To import package. Step 2 Save the file as Demo2. Compile the file using the command javac —d. The Java API is very extensive, contains classes which can perform almost all your programming tasks right from Data Structure Manipulation to Networking. More often than not, you will be using API files in your code. You can see the API documentation here. Skip to content. What is Package in Java?

How to Create a package? 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. Because software written in the Java programming language can be composed of hundreds or thousands of individual classes, it makes sense to keep things organized by placing related classes and interfaces into packages. The Java platform provides an enormous class library a set of packages suitable for use in your own applications.

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