Question

*Java Program Please

You are working at a university that tracks students. Each student is identified by their name and faculty advisor. Each faculty advisor is identified by their name, department, and maximum number of students they can advise. Using solid OO design principles, create a modular program that gathers user input for one student and then prints out the information gathered by creating the appropriate data definition and implementation classes. All data must be validated.

Answer 1

FacultyAdvisor.java

import javax.naming.InvalidNameException;

public class FacultyAdvisor {

   String name;
   String department;
   int MAX_students;
   int presentCount=0;
  
  
  
  
   public int getPresentCount() {
       return presentCount;
   }

   public void setPresentCount(int presentCount) {
       this.presentCount = presentCount;
   }

   public FacultyAdvisor(String name, String department, int mAX_students) {
       super();
       setName(name);
       setDepartment(department);
       setMAX_students(mAX_students);
   }

   public String getName() {
       return name;
   }

   public void setName(String name) {
       if(name.contains("[0-9]")) {
           try {
               throw new InvalidNameException("Name should not contain Digits");
           } catch (InvalidNameException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
          
           return;
       }
          
       this.name = name;
   }

   public String getDepartment() {
       return department;
   }

   public void setDepartment(String department) {
       if(department.contains("[0-9]")) {
           try {
               throw new InvalidNameException("Department should not contain Digits");
           } catch (InvalidNameException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
          
           return;
       }
          
       this.department = department;
   }

   public int getMAX_students() {
       return MAX_students;
   }

   public void setMAX_students(int mAX_students) {
      
       if(name.contains("[/w]")) {
           try {
               throw new InvalidNameException("MAX_students should be an Integer");
           } catch (InvalidNameException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
          
           return;
       }
          
       this.MAX_students = mAX_students;
   }

   @Override
   public String toString() {
       return "\nFacultyAdvisor \nName : " + name + "\nDepartment : " + department + "\nMaximum number of students : " + MAX_students+"\nPresent count of students he is assisting : "+this.presentCount;
   }
  
  
  
  
}

Student.java

import javax.naming.InvalidNameException;

public class Student {

  
   String name;
   FacultyAdvisor advisor;
  
  
  
   public Student(String name, FacultyAdvisor advisor) {
       super();
       int count = advisor.getPresentCount();
      
       if(count<advisor.getMAX_students()) {
       setName(name);
       advisor.setPresentCount(count+1);
       this.advisor = advisor;
       }
      
       else
           System.out.println("Advisor cannot be tagged to student as Advisor reaches the maximum students he can advise.");
      
       setName(name);
   }

   public void setName(String name) {
      
       if(name.contains("[0-9]")) {
           try {
               throw new InvalidNameException("Name should not contain Digits");
           } catch (InvalidNameException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
           }
          
           return;
       }
          
       this.name = name;
   }

   @Override
   public String toString() {
       return "\nStudent\nName : " + name + "\n"+advisor.toString();
   }
  
  
  
  
  
}

Driver.java

import java.util.Scanner;

public class Driver {

   public static void main(String[] args) {
       // TODO Auto-generated method stub

       Scanner scan = new Scanner(System.in);
       System.out.println("Enter name of faculty : ");
       String aName = scan.next();
       System.out.println("Enter name of Department : ");
       String dep = scan.next();
       System.out.println("Enter Maximum students : ");
       int students = scan.nextInt();
      
       FacultyAdvisor advisor = new FacultyAdvisor(aName, dep, students);
      
       System.out.println("Enter name of Student: ");
       String name = scan.next();
      
       Student student = new Student(name, advisor);
      
       System.out.println("\nPrinting Student deatils : ");
      
       System.out.println(student.toString());
      
      
   }

}

Output

Enter name of faculty :
John
Enter name of Department :
Computers
Enter Maximum students :
5
Enter name of Student:
Nicholas

Printing Student deatils :

Student
Name : Nicholas

FacultyAdvisor
Name : John
Department : Computers
Maximum number of students : 5
Present count of students he is assisting : 1

Feel free to ask any doubts, if you face any difficulty in understanding.

Please upvote the answer if you find it helpful