Classes are organized into packages, and the first code line in a file should specify the package that the class is in:
package packt.java11.example.stringsort;
If you do not specify the package, then the class will be in the default package. This should not be used, except in the simplest case when you want to try some code. With Java 11, you can use jshell for this purpose. So, as opposed to previous versions of Java, now the suggestion becomes very simple—never put any class in the default package.
The name of the packages is hierarchical. The parts of the names are separated by dots. Using package names helps you avoid name collisions. Names of the classes are usually kept short, and putting them into packages helps the organization ...
