(Homework Solution): classroom(building, room number, capacity) department dept-name, building, budget)

classroom(building, room number, capacity) department dept-name, building, budget) courselcourse id, title, deptname, credits) instructor(ID, name, dept.name, salary) section(course id, sec id, semester, year, building, roomumber, time slotid) teaches(ID, course id, sec id, semester, year) student ID, name, dept name, tot cred) takes(ID, course.id, secid, semester year, grade) advisor(S-ID, İJD) time slot(time-slot.id, day, start time, endtime) prereq course id, prereqid)

using the above schema solve the following queries

1) Find the IDs of all students who were taught by an instructor named Einstein; make sure there are no duplicates in the result.

2) Find all instructors earning the highest salary (there may be more than one with the same salary).

3) Find the enrollment of each section that was offered in Fall 2009.

4) Find the maximum enrollment, across all sections, in Fall 2009.

5) Create a new course “CS-001”, titled “Weekly Seminar”, with 0 credits.

classroom(building, room number, capacity) department dept-name, building, budget) courselcourse id, title, deptname, credits) instructor(ID, name, dept.name, salary) section(course id, sec id, semester, year, building, roomumber, time slotid) teaches(ID, course id, sec id, semester, year) student ID, name, dept name, tot cred) takes(ID, course.id, secid, semester year, grade) advisor(S-ID, İJD) time slot(time-slot.id, day, start time, endtime) prereq course id, prereqid)

Expert Answer

answers
Please comment in case of any query.

public class Academic {


    public void classroom(String building, int room_number, int capacity){
        System.out.println("ClassRoom info :");
        System.out.println("Building name -"+building+","+"Room No -"+room_number+","+
                "Room Capacity -"+capacity);
    }

    public void department(String dept_name,String building, double budget){
        System.out.println("Department info :");
        System.out.println("Department name -"+dept_name+","+"Building name -"+building+","
                +"Department Budget"+budget);
    }

    public void course(String course_id, String title, String dept_name, int credits){
        System.out.println("Course Info :");
        System.out.println("Course ID -"+course_id+","+"Title -"+title+","+"Department name -"
                +dept_name+","+"Credits -"+credits);
    }

    public void instructor(int ID, String name, String dept_name, double salary){
        System.out.println("Instructor Info :");
        System.out.println("ID -"+ID+","+"Name -"+name+","+"Department name -"+dept_name+","
                +"Salary"+salary);
    }

    public void section(int course_id, int sec_id, String semester, int year, String building,
                        int room_number, int time_slot_id){
        System.out.println("Section info :");
        System.out.println("Course ID -"+course_id+","+"Section ID -"+sec_id+","+"Semester -"
                +semester+","+"Year -"+year+","+"Building -"+building+","+"Room No -"+room_number
                +","+"Time Slot -"+time_slot_id);
    }

    public void teaches(int ID, int course_id, int sec_id, String semester, int year){
        System.out.println("Instructor Teaches Info :");
        System.out.println("ID -"+ID+","+"Course ID -"+course_id+","+"Section ID-"+sec_id
        +","+ "Semester -"+semester+","+"Year"+year);
    }

    public void student(int ID, String name, String dept_name, int tot_cred){
        System.out.println("Student Info :");
        System.out.println("ID -"+ID+ ","+"Name -"+name+","+"Department Name -"+dept_name
        +","+"Total Credits -"+tot_cred);
    }

    public void takes(int ID, int course_id, int sec_id, String semester, int year, char grade){
        System.out.println("Takes Info :");
        System.out.println("ID -"+ID+","+"Course ID -"+course_id+","+"Section ID-"+sec_id
                +","+ "Semester -"+semester+","+"Year"+year+","+"Grade -"+grade);
    }

    public void advisor(int s_ID, int i_ID){
        System.out.println("Advisor Info :");
        System.out.println("S ID -"+s_ID+","+"I ID"+i_ID);
    }

    public void time_slot(int time_slot_id, String day, String start_time, String end_time){
        System.out.println("Time Slot Info :");
        System.out.println("Time Slot ID -"+time_slot_id+","+"Day -"+day+","+"Start Time -"+","+
                "End Time -"+end_time);
    }

    public void prereq(int course_id, int prereq_id){
        System.out.println("Prerequisites :");
        System.out.println("Course ID -"+course_id+","+"Prerequisition ID -"+prereq_id);
    }

}
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.ArrayList;

public class Test {

    public static void main(String[] args) throws IOException{

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        System.out.println("Please Enter Student ID");
        int ID = Integer.parseInt(br.readLine());
        System.out.println("Please Enter Name");
        String name = br.readLine();
        System.out.println("Please Enter Department name");
        String dept_name = br.readLine();
        System.out.println("Please enter total credits");
        int tot_cred = Integer.parseInt(br.readLine());

        System.out.println("Enter Instructor name");
        String inst_name = br.readLine();

        Academic academic = new Academic();

        ArrayList<Integer> students = new ArrayList<Integer>();

        students.add(Integer.parseInt(br.readLine()));

        for (int i=0; i<students.size(); i++){
            while(inst_name.equals("Einstein")){
                System.out.println(students.get(i));

            }
        }

        System.out.println("Enter the salary");

        Double salary = Double.parseDouble(br.readLine());
        academic.instructor(ID,name,dept_name,salary);

        ArrayList<Double> sal = new ArrayList<Double>();

        for (int j=0; j<sal.size(); j++){
            if (sal.get(j) > sal.get(j+1)){
                academic.instructor(ID, name, dept_name, salary);
            }
        }

        academic.course("CS-001","Weekly Seminar", dept_name, 0);

    }
}
iWriteHomework
Order NOW for a 10% Discount
Pages (550 words)
Approximate price: -

Why Us?

Top Quality and Well-Researched Papers

All ourbpapers are written from scratch. In fact, Clients who ask for paraphrasing services are highly discouraged. We have writers ready to craft any paper from scratch and deliver quality ahead of time.

Professional and Experienced Academic Writers

Our writers keeps you posted on your papers progress - providing you with paper outline/draft. You are also at liberty to communicate directly with your writer.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time, in many cases quite ahead of time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Reviews

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Reviews

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.

× Contact Live Agents