Access Java classes in other packages

#You can understand it with the example of defining Boss class in salary package.

package payroll;
public class Boss {
   public void payEmployee(Employee e) {
      e.mailCheck();
   }
}

What if the Employee class is not in the payroll package? The Boss class must then use one of the following techniques to reference classes in different packages.

• You can use the fully qualified name of the class. For example -

 payroll.Employee

• You can use the import keyword and the wildcard character (*) to import a package. For example -

import payroll.*;

• The class itself can be imported using the import keyword. For example -

import payroll.Employee;

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