The default package is a collection of java classes whose source files do not contain and package declarations. These packages act as the default package for such classes. It provides the ease of creating small applications when the development of any project or application has just begun.

Should I use default package?

Yes, it is. Ideally, package names should be globally unique, to avoid naming collisions. Using the default package breaks this convention. It’s also impossible to import a class from the default package.

Where is the default package in Java?

The default package available in Java is Java. lang . Java. lang: classes in the java.