Question

Write a program that implements a Course class. Write a demo class that implements two instances of the Course class.

The Course class shall have the following member properties and methods:

Course

- courseName: String - courseAbbr: String - courseNumber: int - courseSection: int - maxNumOfStudents: int + numberOfCourseInstances: int

+ Course (courseName: String, courseAbbr: String, courseNumber: int, courseSection: int) : void + setCourseName(courseName: String) : void + setCourseAbbr (courseAbbr : String): void + setCourseNumber (courseNumber : int): void + setCourseSection (courseSection : int): void + setMaxNumOfStudents(maxNumOfStudents: int) : void + getCourseName(): String + getCourseAbbr(): String + getCourseNumber(): int + getCourseSection(): int + getMaxNumOfStudents(): int + toString(): void + clone(): Course + equals(): boolean

Answer 1

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;



class Course implements Cloneable{
    String courseName,courseAbbr;
    int courseNumber,courseSection,maxNumOfStudents,numberOfCourseInstances;

    Course(String courseName, String courseAbbr, int courseNumber, int courseSection){
        this.courseName = courseName;
        this.courseAbbr = courseAbbr;
        this.courseNumber = courseNumber;
        this.courseSection = courseSection;
    }

    public void setCourseName(String courseName) {
        this.courseName = courseName;
    }

    public void setCourseAbbr(String courseAbbr) {
        this.courseAbbr = courseAbbr;
    }

    public void setCourseNumber(int courseNumber) {
        this.courseNumber = courseNumber;
    }

    public void setCourseSection(int courseSection) {
        this.courseSection = courseSection;
    }

    public void setMaxNumOfStudents(int maxNumOfStudents) {
        this.maxNumOfStudents = maxNumOfStudents;
    }

    public void setNumberOfCourseInstances(int numberOfCourseInstances) {
        this.numberOfCourseInstances = numberOfCourseInstances;
    }

    public String getCourseName() {
        return courseName;
    }

    public String getCourseAbbr() {
        return courseAbbr;
    }

    public int getCourseNumber() {
        return courseNumber;
    }

    public int getCourseSection() {
        return courseSection;
    }

    public int getMaxNumOfStudents() {
        return maxNumOfStudents;
    }

    public int getNumberOfCourseInstances() {
        return numberOfCourseInstances;
    }

    @Override
    public String toString() {
        return "Course{" +
                "courseName='" + courseName + '\'' +
                ", courseAbbr='" + courseAbbr + '\'' +
                ", courseNumber=" + courseNumber +
                ", courseSection=" + courseSection +
                ", maxNumOfStudents=" + maxNumOfStudents +
                ", numberOfCourseInstances=" + numberOfCourseInstances +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof Course)) return false;
        Course course = (Course) o;
        return courseNumber == course.courseNumber &&
                courseSection == course.courseSection &&
                maxNumOfStudents == course.maxNumOfStudents &&
                numberOfCourseInstances == course.numberOfCourseInstances &&
                Objects.equals(courseName, course.courseName) &&
                Objects.equals(courseAbbr, course.courseAbbr);
    }

    public Course clone(){
        return new Course( courseName, courseAbbr, courseNumber, courseSection);
    }

}

class Main{
    public static void main(String[] args) {
        Course a = new Course("Computer Science","CSE",2,50);
        Course b  = new Course("Machine Learning","ML",4,75);
        System.out.println(a);
        System.out.println(b);
        Course cl = a.clone();
        System.out.println(cl);
    }
}

OUTPUT :