Java Programming(The Course class) Revise the Course class as follows: • Revise the getStudents() method to return an array whose length is the same as the number of students in the course. (Hint: create a new array and copy students to it.)• The array size is fixed in Listing 10.6. Revise the addStudent method to automatically increase the array size if there is no room to add more students. This is done by creating a new larger array and copying the contents of the current array to it.• Implement the dropStudent method.• Add a new method named clear() that removes all students from the course.Write a test program that creates a course, adds three students, removes one, and displays the students in the course LISTING 10.6 Course.java1 public class Course {2private String courseName;private String[] students = new String[100];private int number0fStudents;3create students4public Course (String courseName) {this.courseName = courseName;6add a course79public void addStudent (String student) {students(number0fStudents] = student;numberOfStudents++;}1011121314public String[ getStudents() {15return students16return students;1718public int getNumber0fStudents(0 {return number0fStudents;19number of students202122public String getCourseName() {return courseName;23242526public void dropStudent(String student) {|/ Left as an exercise in Programming Exercise 10.9272829}30 }

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

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Java Programming

(The Course class) Revise the Course class as follows:
• Revise the getStudents() method to return an array whose length is the same as the number of students in the course. (Hint: create a new array and copy students to it.)
• The array size is fixed in Listing 10.6. Revise the addStudent method to automatically increase the array size if there is no room to add more students. This is done by creating a new larger array and copying the contents of the current array to it.
• Implement the dropStudent method.
• Add a new method named clear() that removes all students from the course.

Write a test program that creates a course, adds three students, removes one, and displays the students in the course

LISTING 10.6 Course.java
1 public class Course {
2
private String courseName;
private String[] students = new String[100];
private int number0fStudents;
3
create students
4
public Course (String courseName) {
this.courseName = courseName;
6
add a course
7
9
public void addStudent (String student) {
students(number0fStudents] = student;
numberOfStudents++;
}
10
11
12
13
14
public String[ getStudents() {
15
return students
16
return students;
17
18
public int getNumber0fStudents(0 {
return number0fStudents;
19
number of students
20
21
22
public String getCourseName() {
return courseName;
23
24
25
26
public void dropStudent(String student) {
|/ Left as an exercise in Programming Exercise 10.9
27
28
29
}
30 }

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