Question

USE JAVA

Develop the classes for the following requirements:

1. A class named Employee (general, for college)

2. A class named Instructor (more specific, for college)

3. A class named Staff (more specific, for college, HR officer, Marking staff)

Tasks:

1. Figure out the relationships among the classes;

2. Determine the abstract class, and the child classes;

3. For the abstract class, determine at least one abstract method;

4. Each class should at least two data members and one extra method;

5. Full implementation of all constructors, getters/setters and toString, and other methods;

6. Test your Java code and take screen shots

Answer 1

code:

package assignment;

abstract class Employee{ //abstract class
   public String general;
   public String college;
   public Employee(String general,String college) { //constructor
       this.general=general;
       this.college=college;
   }

}
abstract class Instructor extends Employee{ // child class of abstract class
   public String specific;
   public Instructor(String general, String college, String specific) {
       super(general, college);
       this.specific=specific;
   }
   public abstract void start();//abstract methods

}
class Staff extends Instructor{
   public String HR;
   public Staff(String general, String college, String specific, String HR) {
       super(general, college, specific);
       this.HR=HR;
   }
   @Override
   public void start() {
       System.out.println(this.college);
   }  
   public void setgeneral(String general) {
       this.general=general;
   }
   public String getgeneral() {
       return this.general;
   }
   public void setcollege(String college) {
       this.college=college;
   }
   public String getcollege() {
       return this.college;
   }
   public void setspecific(String specific) {
       this.specific=specific;
   }
   public String getspecific() {
       return this.specific;
   }
   public void setHR(String HR) {
       this.HR=HR;
   }
   public String getHR() {
       return this.HR;
   }
   public String toString()
   {
   return this.general +" " + this.college + " "+this.specific+ " " + this.HR;
   }

  
  
}

public class Cons {
   public static void main(String args[]) {
       Staff s=new Staff("general","college","specific","HR");
       System.out.println(s);
   }

}

Note:***I hope your happy with my answer***If you have any doubt please comment me****Thank you......