After printing this document, main() invokes fromJson() with the previous string and Employee‘s java.lang.Class object to deserialize the JSON document to another Employee object, which is ...

For a JAR file to run, the JAR itself must contain at least one class that has a runnable main method. Furthermore, the class with the main method must be listed as the main-class in the JAR’s ...

The second argument is a java.lang.Class object for the target type that is being instantiated, populated with XML data, and whose instance is subsequently returned from the method.