abstractdemosecnario

package abstractdemosecnario;

abstract public class Employee {

    void showPerformence() {
        System.out.println("Good");
    }

    abstract void checking();
}


package abstractdemosecnario;

public class Manager extends Employee {

    @Override
    void checking() {
        System.out.println("File checking");
    }
}


package abstractdemosecnario;

public class Staff extends Employee {

    @Override
    void checking() {
        System.out.println("Supplier checking");
    }
}


package abstractdemosecnario;

public class SalesPerson extends Employee {

    @Override
    void checking() {
        System.out.println("product check");
    }
}



package abstractdemosecnario;

public class AbstractDemoSecnario {

    public static void main(String[] args) {

        Manager m1 = new Manager();
        m1.showPerformence();
    }

}