Question

Hi, can you help me with Part E? Please use Java language. So for this Part, you will be given 3 files of starter code that is already done for you. All you have to do is to add on to it in order to produce the exact output shown in the pictures below. Please only add on to the code, but not change any of them. Out of the 3 given files, 1 of them is already completed. The pictures below will include the problem, the code in pictures as well as code in the text form just to make it easier for you to copy and paste. The first image does not show the full output, I will include the full output in a picture below.

Files that already done no changes needed:

1.SFSUOneStopClient.java

PART E - Priority Queue, 15 points The San Francisco State University's One Stop Student Services Center asks us to recommend solutions for their service lines. The starter code for this problem is provided in the Assignment-03-Code.zip archive. Our output must be identical to the complete output provided in the ZIP archive: The_Complete_Sample_Run.pdf - The below is a portion of the output for preview purposes. It is NOT the complete output. Please analyze the complete output thoroughly before programming a solution. --------- SFSU ONE STOP STUDENT SERVICES CENTER Priority: default Mickey Minnie Milo Goofy Daisy Pluto Donald Mouse Mouse Dog Dog Duck Dog Duck 1002 1001 1004 1007 1003 1005 1006 3.70 3.90 3.70 2.30 1.70 3.70 3.10

File: SFSUOneStop.java

File: SFSUOneStopClient.java

File: Student.java

Complete Output for Part E:

The Code in Text form: SFSUOneStop.java

package assignment03PartE;

/**
*
* Part E
*
*/

import java.util.PriorityQueue;

public class SFSUOneStop {
  
}

The code in Text form: SFSUOneStopClient.java

package assignment03PartE;

/**
*
* Part E
*
* Please do not change any code in this file.
*
*/

import java.util.PriorityQueue;

public class SFSUOneStopClient {

public static void main(String[] args) {

System.out.println("-------------------------------------------------------------");
System.out.println("\t\t\t SFSU ONE STOP STUDENT SERVICES CENTER");
System.out.println("-------------------------------------------------------------");

Student[] students = {
new Student("Mickey", "Mouse", 1002, 3.7, 1, 17),
new Student("Minnie", "Mouse", 1001, 3.9, 10, 15),
new Student("Goofy", "Dog", 1007, 2.3, 17, 1),
new Student("Pluto", "Dog", 1005, 3.7, 7, 17),
new Student("Milo", "Dog", 1004, 3.7, 7, 17),
new Student("Donald", "Duck", 1006, 3.1, 5, 2),
new Student("Daisy", "Duck", 1003, 1.7, 1, 17),
};

PriorityQueue<Student> oneStopPQ = new PriorityQueue<Student>();

for (String priority : Student.getPriorities()) {
Student.setCompareToPriority(priority);
if (!oneStopPQ.isEmpty()) {
oneStopPQ.clear();
}
for (Student student : students) {
oneStopPQ.add(student);
}
SFSUOneStop.display(oneStopPQ, priority);
}

oneStopPQ.clear();
}
}

The code in Text form: Student.java

package assignment03PartE;

/**
*
* Part E
*
*/

public final class Student implements Comparable<Student> {

}

Notes:

Answer 1

Please rate the answer and do comment in case of any query. Thanks.

The order of elements in the priority queue is a bit different in my output than the one shown in the output here, but the sorting order is maintained., i.e. when sorted by last name,

First 3 values in the ouput here are "Goofy Dog", "Milo Dog" and "Pluto Dog"

but in my output they are "Goofy Dog", "Pluto Dog" and "Milo Dog"

************************************************************* Code *************************************************************

Student.java:

import java.util.*;

public final class Student implements Comparable<Student> {
   private String firstname;
   private String lastname;
   private int id;
   private double gpa;
   private int smallQuestions;
   private int bigQuestions;
   private static String priority;
  
   // Contructor to initialize the instance variables
   public Student(String firstname, String lastname, int id, double gpa, int smallQuestions, int bigQuestions) {
       this.firstname = firstname;
       this.lastname = lastname;
       this.id = id;
       this.gpa = gpa;
       this.smallQuestions = smallQuestions;
       this.bigQuestions = bigQuestions;
   }
  
   // List of priorities
   public static List<String> getPriorities() {
       List<String> priorities = Arrays.asList("default", "first-name", "last-name", "student-id",
           "gpa", "number-of-small-questions", "number-of-big-questions", "number-of-small-and-big-questions");
       return priorities;
   }
  
   // Setting the priority
   public static void setCompareToPriority(String p) {
       priority = p;
   }
  
   // Cmparing the student objects based on the priority set above
   @Override
   public int compareTo(Student s) {
       if(priority.equals("first-name"))
           return this.firstname.compareTo(s.firstname);
       if(priority.equals("last-name"))
           return this.lastname.compareTo(s.lastname);
       if(priority.equals("student-id"))
           return Integer.valueOf(this.id).compareTo(Integer.valueOf(s.id));
       if(priority.equals("gpa"))
           return Double.valueOf(this.gpa).compareTo(s.gpa);
       if(priority.equals("number-of-small-questions"))
           return Integer.valueOf(this.smallQuestions).compareTo(s.smallQuestions);
       if(priority.equals("number-of-big-questions"))
           return Integer.valueOf(this.bigQuestions).compareTo(s.bigQuestions);
       if(priority.equals("number-of-small-and-big-questions"))
           return Integer.valueOf(this.smallQuestions + this.bigQuestions).compareTo(s.smallQuestions + s.bigQuestions);
       return 0;
   }
  
   // toString() method to display the instance variables of Student
   @Override
   public String toString() {
       return "\t\t" + firstname + "\t" + lastname + "\t" + id + "\t" + String.format("%.2f", gpa) + "\t" + smallQuestions + "\t" + bigQuestions;
   }
}

SFSUOneStop.java:

import java.util.PriorityQueue;

public class SFSUOneStop {
  
   // Displaying the values in priority queue
   public static void display(PriorityQueue<Student> oneStopPQ, String priority) {
       System.out.println("Priority: " + priority);
      
       // Looping until the queue is empty
       while (!oneStopPQ.isEmpty())
           // Removing the element with highest priority
           // from the queue and displaying it
           System.out.println(oneStopPQ.poll());
       System.out.println();
   }
}

SFSUOneStopClient.java (Not modified):

import java.util.PriorityQueue;

public class SFSUOneStopClient {

   public static void main(String[] args) {

       System.out.println("-------------------------------------------------------------");
       System.out.println("\t\t SFSU ONE STOP STUDENT SERVICES CENTER");
       System.out.println("-------------------------------------------------------------");

       Student[] students = {
           new Student("Mickey", "Mouse", 1002, 3.7, 1, 17),
           new Student("Minnie", "Mouse", 1001, 3.9, 10, 15),
           new Student("Goofy", "Dog", 1007, 2.3, 17, 1),
           new Student("Pluto", "Dog", 1005, 3.7, 7, 17),
           new Student("Milo", "Dog", 1004, 3.7, 7, 17),
           new Student("Donald", "Duck", 1006, 3.1, 5, 2),
           new Student("Daisy", "Duck", 1003, 1.7, 1, 17),
       };

       PriorityQueue<Student> oneStopPQ = new PriorityQueue<Student>();

       for (String priority : Student.getPriorities()) {
           Student.setCompareToPriority(priority);
           if (!oneStopPQ.isEmpty()) {
               oneStopPQ.clear();
           }
           for (Student student : students) {
               oneStopPQ.add(student);
           }
           SFSUOneStop.display(oneStopPQ, priority);
       }

       oneStopPQ.clear();
   }
}

************************************************ Screenshots of the code ************************************************

Student.java:

import java.util.*; public final class Student implements Comparable<Student> { private String firstname; private String lastname; private int id; private double gpa; private int smallQuestions; private int bigQuestions; private static String priority; O DOWN5EGREE JOUE WNE // Contructor to initialize the instance variables public Student (String firstname, String lastname, int id, double gpa, int smallquestions, int bigQuestions) { this.firstname = firstname; this. lastname = lastname; this.id = id; this.gpa = gpa; this.smallQuestions = small Questions; this.bigQuestions = bigQuestions; // List of priorities public static List<String> getPriorities () { List<String> priorities = Arrays.asList("default", "first-name", "last-name", "student-id", "gpa", "number-of-small-questions", "number-of-big-questions", "number-of-small-and-big-questions"); return priorities; 30 // Setting the priority public static void setCompareToPriority (String p) { priority = p; Www WNO CON // Cmparing the student objects based on the priority set above @Override public int compareTo (Student s) { if (priority.equals("first-name")) return this.firstname.compareTo (s.firstname); if (priority.equals("last-name")) return this.lastname.compareTo (s.lastname); if (priority.equals("student-id")) return Integer.valueof(this.id) .compareTo (Integer.valueof(s.id)); if (priority.equals("gpa"))

return Integer.valueof(this.id) .compareTo (Integer.valueof(s.id)); if (priority.equals("gpa")) return Double.valueof(this.gpa) .compareTo (s.gpa); if (priority.equals("number-of-small-questions")) return Integer.valueof(this. smallQuestions).compareTo (s.smallquestions); if (priority.equals("number-of-big-questions")) return Integer.valueof(this.bigQuestions) .compareTo (s.bigQuestions); if (priority.equals("number-of-small-and-big-questions")) return Integer.valueof(this.smallQuestions + this.bigQuestions) .compareTo (s.smallQuestions + s.bigQuestions); return 0; 56 // toString() method to display the instance variables of Student @Override public String toString() { return "\t\t" + firstname + "\t" + lastname + "\t" + id + "\t" + String.format("%.2f", gpa) + "\t" + small Questions + "\t" + bigQuestions; L}

SFSUOneStop.java:

import java.util. PriorityQueue; 3 public class SFSUOneStop { // Displaying the values in priority queue public static void display (PriorityQueue<Student> oneStopPQ, String priority) { System.out.println("Priority:" + priority); // Looping until the queue is empty while (!oneStopPQ.isEmpty()) // Removing the element with highest priority // from the queue and displaying it System.out.println (oneStopPQ-poll()); System.out.println();

SFSUOneStopClient.java (Not modified):

import java.util. PriorityQueue; public class SFSUOneStopclient { public static void main(String[] args) { - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - " ) . System.out.println("---------- System.out.println("\t\t SFSU ONE STOP STUDENT SERVICES CENTER"); System.out.println("---- NPOOBSEGU EEE NOW Student[] students = { new Student ("Mickey", "Mouse", 1002, 3.7, 1, 17), new Student ("Minnie", "Mouse", 1001, 3.9, 10, 15), new Student ("Goofy", "Dog", 1007, 2.3, 17, 1), new Student ("Pluto", "Dog", 1005, 3.7, 7, 17), new Student ("Milo", "Dog", 1004, 3.7, 7, 17), new Student ("Donald", "Duck", 1006, 3.1, 5, 2), new Student ("Daisy", "Duck", 1003, 1.7, 1, 17), PriorityQueue<Student> oneStopPQ = new PriorityQueue<Student>(); for (String priority : Student.getPriorities ()) { Student.setCompareToPriority (priority); if (!oneStopPQ.isEmpty()) { oneStopPQ.clear(); for (Student student : students) { oneStopPQ.add (student); SFSUOneStop.display (oneStopPQ, priority); oneStopPQ.clear();

************************************************ Screenshots of sample output ************************************************

. C:\Windows\System32\cmd.exe C:\chg\2020-04-19>javac Student.java C:\chg 2020-04-19>javac SFSUOneStop.java C:\chg 2020-04-19>javac SFSUOneStopClient.java C:\chg 2020-04-19>java SFSUOneStopClient SFSU ONE STOP STUDENT SERVICES CENTER - -- - - - - - -- - - - - - -- - - - - - -- - - 3.70 1.70 Priority: default Mickey Mouse 1002 Daisy Duck 1003 Donald Duck 1006 Milo Dog1004 Pluto Dog 1005 Goofy Dog 1007 Minnie Mouse 1001 71 3.70 3.70 2.30 3.90 10 Priority: first-name Daisy Duck Donald Duck Goofy Dog Mickey Mouse Milo Dog Minnie Mouse Pluto Dog 1003 1006 1007 1002 1004 1001 1005 1.70 3.10 2.30 3.70 3.70 3.90 3.70 2.30 7 Priority: last-name Goofy Dog Pluto Dog Milo Dog Daisy Duck Donald Duck Minnie Mouse Mickey Mouse 1007 1005 1004 1003 1006 1001 1002 3.70 3.70 1.70 3.10 3.90 3.70 Priority: student-id Minnie Mouse 1001 Mickey Mouse 1002 Daisy Duck 1003 Milo Dog 1004 Pluto Dog 1005 Donald Duck 1006 Goofy_Dog1007 3.90 3.70 1.70 3.70 3.70 3.10 2.30 171 Priority: gpa 1 7 Daisy Goofy Duck Dog 1003 1007 1.70 1 2.30 17

Hope this helps you and would suffice your requirement.