Question

Given a class called Student and a class called Course that contains an ArrayList of Student. Write a method called getDeansList() as described below. Refer to Student.java below to learn what methods are available.

I will paste both of the simple .JAVA codes below

Given a class called student and a class called Course that contains an ArrayList of Student. Write a method called getDeansList() as described below. Refer to Student.java below to learn what methods are available LAB ACTIVTY 10.12.1: zyLab: Dean's List 0/2 Files provided by your instructor Course.java and Student.java Download Current file: Course·Java Load default template ▼ 1 import java.util.; 2 import java.io.* 4 * A list of students in a course 5 碜 碜 6 public class Course "/ /collection of Students private ArrayList(Student) roster; 10 12 Constructor for objects of class Course 14 public Course)f 15 16 17 rosternew ArrayList<Student> O; 19 return a new ArrayList with all Students that have 20 a GPA of at least 3.5

COURSE.JAVA

import java.util.*;

import java.io.*;

/******************************************************

* A list of students in a course

*****************************************************/

public class Course{

    /** collection of Students */

    private ArrayList<Student> roster;

/*****************************************************

Constructor for objects of class Course

*****************************************************/

    public Course(){

        roster = new ArrayList<Student>();

  }

/*****************************************************

@return a new ArrayList with all Students that have

a GPA of at least 3.5

*****************************************************/   

    public ArrayList<Student> getDeansList(){

        /** Your code goes here */

       

    }

   

/*****************************************************

Add a student to the course

*****************************************************/

    public void addStudent(Student s){

        roster.add(s);

    }

   

/*****************************************************

Main method for testing

*****************************************************/

    public static void main(String args[]){

       Course cis162 = new Course();

       cis162.addStudent(new Student("Henry", "Cabot", 3.5));

       cis162.addStudent(new Student("Brenda", "Stern", 2.0));

       cis162.addStudent(new Student("Lynda", "Robison", 3.2));

       cis162.addStudent(new Student("Jane", "Flynn", 3.9));

       ArrayList<Student> stars = cis162.getDeansList();

    }   

}

STUDENT.JAVA

import java.text.*;

/*************************************************

* A simple student class including name and gpa.

*

* @author Scott Grissom

* @version March 21, 2016

*************************************************/

public class Student{

   

    /** student name */

    private String first, last;

   

    /** student GPA */

    private double gpa;

/************************************************

Constructor for Student

************************************************/

    public Student(String f, String l, double d){

        first = f;

        last = l;

        gpa = d;

    }

   

/************************************************

@return GPA

************************************************/

    public double getGPA(){

        return gpa;

    }

/************************************************

@return last name

************************************************/

    public String getLast(){

        return last;

    }

   

/************************************************

to String

@return String representation of the object

************************************************/    

    public String toString(){

        DecimalFormat fmt = new DecimalFormat("#.0");

        return first + " " + last + " " + fmt.format(gpa);

    }

   

    public static void main (String [] args){

        Student s = new Student ("Henry", "Walker", 3.6);

        System.out.println(s);

    }

}

Answer 1

Below is your code: -

public ArrayList<Student> getDeansList() {

/** Your code goes here */

//create a empty list

ArrayList<Student> deansList = new ArrayList<>();

//loop through the roster

for (Student student : roster) {

//if GPA is atleast 3.5, add to list

if(student.getGPA() >= 3.5) {

deansList.add(student);

}

}

//return the list.

return deansList;

}

After adding the code in the class and chaning the main method as below: -

public static void main(String args[]) {

Course cis162 = new Course();

cis162.addStudent(new Student("Henry", "Cabot", 3.5));

cis162.addStudent(new Student("Brenda", "Stern", 2.0));

cis162.addStudent(new Student("Lynda", "Robison", 3.2));

cis162.addStudent(new Student("Jane", "Flynn", 3.9));

ArrayList<Student> stars = cis162.getDeansList();

for (Student student : stars) {

System.out.println(student);

}

}

We get the output as below

Henry Cabot 3.5
Jane Flynn 3.9