Question

1) Create a new project in NetBeans called Lab6Inheritance. Add a new Java class to the project called Person. 2) The UML class diagram for Person is as follows: Person - name: String - id: int + Person( String name, int id) + getName(): String + getido: int + display(): void 3) Add fields to Person class. 4) Add the constructor and the getters to person class. 5) Add the display() method, which prints out the name and id of the object. 6) Let's test to make sure the Person class works. In the Lab6Inheritance.java file, click in the main method, and add code to create a Person and display the object's detail, like this: Person p = new Person ("Alice", 1000); p.display(); 7) You should now be able to run this project, and see an output as follow: Name = Alice ID = 1000

I need help for part B and C

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
=================================
b)

// Person.java

public class Person {
   private String name;
   private int id;

   /**
   * @param name
   * @param id
   */
   public Person(String name, int id) {
       this.name = name;
       this.id = id;
   }

   /**
   * @return the name
   */
   public String getName() {
       return name;
   }

   /**
   * @param name
   * the name to set
   */
   public void setName(String name) {
       this.name = name;
   }

   /**
   * @return the id
   */
   public int getId() {
       return id;
   }

   /**
   * @param id
   * the id to set
   */
   public void setId(int id) {
       this.id = id;
   }

   public void display() {
       System.out.println("Name :" + name);
       System.out.println("Id :" + id);

   }

}

=================================

// Student.java

import java.util.ArrayList;

public class Student extends Person {
   private String major;
   private double gpa;
   private ArrayList<String> enrolledClasses;

   /**
   * @param name
   * @param id
   * @param major
   * @param gpa
   */
   public Student(String name, int id, String major, double gpa) {
       super(name, id);
       this.major = major;
       this.gpa = gpa;
       this.enrolledClasses = new ArrayList<String>();
   }

   /**
   * @return the major
   */
   public String getMajor() {
       return major;
   }

   /**
   * @param major
   * the major to set
   */
   public void setMajor(String major) {
       this.major = major;
   }

   /**
   * @return the gpa
   */
   public double getGpa() {
       return gpa;
   }

   /**
   * @param gpa
   * the gpa to set
   */
   public void setGpa(double gpa) {
       this.gpa = gpa;
   }

   /**
   * @return the enrolledClasses
   */
   public ArrayList<String> getEnrolledClasses() {
       return enrolledClasses;
   }

   public void addClass(String name) {
       enrolledClasses.add(name);
   }
public boolean dropClass(String name)
{
   int indx=-1;
   for(int i=0;i<enrolledClasses.size();i++)
   {
       if(enrolledClasses.get(i).equalsIgnoreCase(name))
       {
           indx=i;
       }
   }
  
   if(indx==-1)
   {
       return false;
   }
   else
   {
       enrolledClasses.remove(indx);
       return true;
   }
}
  
public void display()
{
   super.display();
   System.out.println("Major :"+major);
   System.out.println("GPA :"+gpa);
   System.out.println("Enrolled in the following classes:");
   for(int i=0;i<enrolledClasses.size();i++)
   {
       System.out.println(enrolledClasses.get(i));
   }
  
  
}

}

=====================================

// Test.java

public class Test {

   public static void main(String[] args) {

       Student s1=new Student("Malick",900,"CS",3.5);
       s1.addClass("Java Programming");
       s1.addClass("Calculus");
       if(s1.dropClass("Spanish"))
       {
           System.out.println("The class has been dropped");
       }
       else
       {
           System.out.println("You are not enrolled in the class");
       }
      
       s1.display();
      
   }

}

==================================

Output:

You are not enrolled in the class
Name :Malick
Id :900
Major :CS
GPA :3.5
Enrolled in the following classes:
Java Programming
Calculus

===================================

c)

// Professor.java

import java.util.ArrayList;

public class Professor extends Person {
private String department;
private double salary;
private ArrayList<Student> advisees;
   /**
   * @param name
   * @param id
   * @param department
   * @param salary
   */
   public Professor(String name, int id, String department, double salary) {
       super(name, id);
       this.department = department;
       this.salary = salary;
       this.advisees=new ArrayList<Student>();
   }
   /**
   * @return the department
   */
   public String getDepartment() {
       return department;
   }
   /**
   * @param department the department to set
   */
   public void setDepartment(String department) {
       this.department = department;
   }
   /**
   * @return the salary
   */
   public double getSalary() {
       return salary;
   }
   /**
   * @param salary the salary to set
   */
   public void setSalary(double salary) {
       this.salary = salary;
   }
   /**
   * @return the advisees
   */
   public ArrayList<Student> getAdvisees() {
       return advisees;
   }

   public void addAdvisees(Student student)
   {
       advisees.add(student);
   }
  
   public boolean removeAdvisee(String name)
   {
       int indx=-1;
       for(int i=0;i<advisees.size();i++)
       {
           if(advisees.get(i).getName().equalsIgnoreCase(name))
           {
               indx=i;
           }
       }
       if(indx==-1)
       {
           return false;
       }
       else
       {
           advisees.remove(indx);
       }
       return true;
   }

   public void display()
   {
       super.display();
       System.out.println("Department :"+department);
       System.out.println("Salary :$"+salary);
      
       System.out.println("Advisees:");
       for(int i=0;i<advisees.size();i++)
       {
           System.out.println(advisees.get(i).getName());
       }
   }
}

==================================

// TestProg.java

public class TestProg {

   public static void main(String[] args) {

       Student s1 = new Student("Malick", 900, "CS", 3.5);
       Student s2 = new Student("Sumukh", 901, "CS", 3.2);
       Student s3 = new Student("Magarita", 902, "CS", 3.0);

       Professor p1 = new Professor("Marlon", 300, "CS", 80000);
       p1.addAdvisees(s3);
       p1.addAdvisees(s2);
       p1.addAdvisees(s1);

       p1.display();
       if (p1.removeAdvisee("John")) {
           System.out.println("The advisee has been removed");
       } else {
           System.out.println("The advisee cannot be found in the list");
       }

       if (p1.removeAdvisee("Malick")) {
           System.out.println("The advisee has been removed");
       } else {
           System.out.println("The advisee cannot be found in the list");
       }

   }

}

===================================

output:

Name :Marlon
Id :300
Department :CS
Salary :$80000.0
Advisees:
Magarita
Sumukh
Malick
The advisee cannot be found in the list
The advisee has been removed

=====================Could you plz rate me well.Thank You