Students make the Dean's list if their GPA is 3.5 or higher. Complete the Course class by implementing the getDeansList() method, which returns an ArrayList of students with a GPA of 3.5 or higher. Given classes: Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here.) Class Student represents a classroom student, which has three fields: first name, last name, and GPA. (Hint: getGPA() returns a student's GPA.) Ex: If the following students and their GPA values are added to a course: Henry Nguyen with 3.5 GPA Brenda Stern with 2.0 GPA Lynda Robison with 3.2 GPA Sonya King with 3.9 GPA then the getDeansList() method returns an ArrayList of 2 students and the program output is: Dean's list: Henry Nguyen (GPA: 3.5) Sonya King (GPA: 3.9) Course.java import java.util.ArrayList; public class Course { private ArrayList roster; // Collection of Student objects public Course() { roster = new ArrayList(); } // Return an ArrayList of all Students with a GPA of at least 3.5 public ArrayList getDeansList() { /* Type your code here */ } public void addStudent(Student s) { roster.add(s); } // main public static void main(String args[]) { Course course = new Course(); ArrayList deanList = new ArrayList(); String first; // first name String last; // last name double gpa; // grade point average first = "Henry"; last = "Nguyen"; gpa = 3.5; course.addStudent(new Student(first, last, gpa)); // Add 1st student first = "Brenda"; last = "Stern"; gpa = 2.0; course.addStudent(new Student(first, last, gpa)); // Add 2nd student first = "Lynda"; last = "Robison"; gpa = 3.2; course.addStudent(new Student(first, last, gpa)); // Add 3rd student first = "Sonya"; last = "King"; gpa = 3.9; course.addStudent(new Student(first, last, gpa)); // Add 4th student deanList = course.getDeansList(); System.out.println("Dean's list:"); for (Student student: deanList) { System.out.println(student); // Expect: ArrayList with Henry and Sonya } } } import java.text.DecimalFormat; // Class representing a student public class Student { private String first; // first name private String last; // last name private double gpa; // grade point average // Student class constructor public Student(String first, String last, double gpa) { this.first = first; // first name this.last = last; // last name this.gpa = gpa; // grade point average } public double getGPA() { return gpa; } public String getLast() { return last; } // Returns a String representation of the Student object, with the GPA formatted to one decimal public String toString() { DecimalFormat fmt = new DecimalFormat("#.0"); return first + " " + last + " (GPA: " + fmt.format(gpa) + ")"; } }
Students make the Dean's list if their GPA is 3.5 or higher. Complete the Course class by implementing the getDeansList() method, which returns an ArrayList of students with a GPA of 3.5 or higher.
Given classes:
- Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here.)
- Class Student represents a classroom student, which has three fields: first name, last name, and GPA. (Hint: getGPA() returns a student's GPA.)
Ex: If the following students and their GPA values are added to a course:
Henry Nguyen with 3.5 GPA
Brenda Stern with 2.0 GPA
Lynda Robison with 3.2 GPA
Sonya King with 3.9 GPA
then the getDeansList() method returns an ArrayList of 2 students and the program output is:
Dean's list: Henry Nguyen (GPA: 3.5) Sonya King (GPA: 3.9)
Course.java
import java.util.ArrayList;
public class Course {
private ArrayList<Student> roster; // Collection of Student objects
public Course() {
roster = new ArrayList<Student>();
}
// Return an ArrayList of all Students with a GPA of at least 3.5
public ArrayList<Student> getDeansList() {
/* Type your code here */
}
public void addStudent(Student s) {
roster.add(s);
}
// main
public static void main(String args[]) {
Course course = new Course();
ArrayList<Student> deanList = new ArrayList<Student>();
String first; // first name
String last; // last name
double gpa; // grade point average
first = "Henry";
last = "Nguyen";
gpa = 3.5;
course.addStudent(new Student(first, last, gpa)); // Add 1st student
first = "Brenda";
last = "Stern";
gpa = 2.0;
course.addStudent(new Student(first, last, gpa)); // Add 2nd student
first = "Lynda";
last = "Robison";
gpa = 3.2;
course.addStudent(new Student(first, last, gpa)); // Add 3rd student
first = "Sonya";
last = "King";
gpa = 3.9;
course.addStudent(new Student(first, last, gpa)); // Add 4th student
deanList = course.getDeansList();
System.out.println("Dean's list:");
for (Student student: deanList) {
System.out.println(student); // Expect: ArrayList with Henry and Sonya
}
}
}
import java.text.DecimalFormat;
// Class representing a student
public class Student {
private String first; // first name
private String last; // last name
private double gpa; // grade point average
// Student class constructor
public Student(String first, String last, double gpa) {
this.first = first; // first name
this.last = last; // last name
this.gpa = gpa; // grade point average
}
public double getGPA() {
return gpa;
}
public String getLast() {
return last;
}
// Returns a String representation of the Student object, with the GPA formatted to one decimal
public String toString() {
DecimalFormat fmt = new DecimalFormat("#.0");
return first + " " + last + " (GPA: " + fmt.format(gpa) + ")";
}
}
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