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How to use classes in other package in Java
You can understand it using an example where a Boss class is defined in payroll package.
package payroll; public class Boss { public void payEmployee(Employee e) { e.mailCheck(); } }
if the Employee class is not in the payroll package? The Boss class must then use one of the following techniques for referring to a class in a different package.
- The fully qualified name of the class can be used. For example −
payroll.Employee
- The package can be imported using the import keyword and the wildcard (*). For example −
import payroll.*;
- The class itself can be imported using the import keyword. For example −
import payroll.Employee;
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