Answer to Question #348992 in Java | JSP | JSF for stephanie

Question

Create an interface called EmployeeInterface. This interface has the following abstract method:

public void workingOn(String task);

The Employee class implements this interface, and provides an implementation for workingOn() which displays that the employee is working on a certain task.

(Note what happens if you don’t  implement workingOn().)

Answer 1

interface EmployeeInterface {
    void workingOn(String task);
}

class Employee implements EmployeeInterface {
    // If `workingOn` method is not implemented, then a compilation error happens
    public void workingOn(String task) {
        System.out.println("The employee is working on " + task);
    }
}

class Test {
    public static void main(String[] args) {
        Employee employee = new Employee();
        employee.workingOn("coding");
    }
}