CScourses.txt COMP163 22623 Kim R 0800 HINES100 Intro Computer Programming COMP1

Question

CScourses.txt

COMP163 22623 Kim R 0800 HINES100 Intro Computer Programming
COMP167 22627 Bryant MWF 1100 HINES100 Computer Program Design
COMP180 20481 Esterline MWF 0900 GRAHA210 Discrete Structures
COMP200 20871 Brown T 1500 TBD Computer Sci Sophomore Colloq
COMP267 21510 Hinton MW 1800 TBD Data Base Design
COMP280 20028 Brown TR 0930 MCNAI129 Data Structures
COMP285 20426 Carr MWF 1100 MCNAI205 Analysis of Algorithms
COMP300 20998 Brown R 1300 TBD Computer Science Jr Colloquium
COMP320 21508 Nowaczyk-Pioro TR 1500 MCNAI130 Fundamentals of Cyber Security
COMP322 20569 Esterline MW 1800 MCNAI129 Internet Systems
COMP350 21509 Carr MWF 1200 MCNAI205 Operating Systems
COMP360 20031 Esterline MWF 1400 GRAHA210 Programming Languages
COMP365 20032 Xu MWF 1000 MCNAI129 Program Methodologies & Concepts
COMP375 20482 Limbrick MWF 1300 GRAHA210 Computer Architecture & Org
COMP385 20033 Kim TR 1100 MCNAI129 Theory of Computing
COMP390 20035 Nowaczyk-Pioro online online online Social Implications of Computing
COMP397 20414 Bryant TBD TBD TBD Co-Op Experience I
COMP410 21511 Roy TR 0930 GRAHA210 Software Engineering
COMP445 22756 Roy TR 1700 TBD Introduction to AI
COMP476 20036 Xu MWF 0900 GRAHA208 Networked Computer Systems
COMP494 22376 Bryant TBD TBD TBD Independent Study
COMP495 22070 Carr TBD TBD TBD Senior Project I
COMP496 21512 Anwar TR 0930 MCNAI205 Senior Project II
COMP621 20038 Yu MWF 1400 MCNAI129 Web Security
COMP681 20098 Esterline MW 1500 MCNAI129 Formal Methods
COMP710 20570 Roy TR 1500 GRAHA208 Specifications and Design
COMP727 20571 Yuan online online online Secure Software Engineering
COMP775 22641 Xu MWF 1400 MCNAI130 Advance Design Analysis Algorithms
COMP796 many many TBD TBD TBD Master's Project
COMP797 many many TBD TBD TBD Master's Thesis
COMP799 20330 Bryant TBD TBD TBD Continuation of Research
COMP892 22759 Anwar TR 1100 TBD Doctoral Research Methods
COMP895 22075 Anwar TR 1300 MCNAI132 Usable Security
COMP991 20999 Yu TBD TBD TBD Doctoral Qualifying Exam
COMP993 22074 Esterline TBD TBD TBD Doctoral Supervised Teaching
COMP994 22302 Bryant TBD TBD TBD Doctoral Research Examination
COMP995 21099 Bryant TBD TBD TBD Doctoral Preliminary Exam
COMP997 21097 Bryant TBD TBD TBD Doctoral Dissertation

COMP163 Course Information Program Write a program that displays information about the Computer Science semester schedule. Your program will require two Java files: your main program and a Course class. The Course class must contain the following class instance data: data Course number CRN Instructor's last name Days the course is taught Start time of the class Room where the class will be held Title of the course example COMP163 20781 Williams MWF 1000 Graham210 Intro to Computer Programming All data should be represented as strings. Your class must include a constructor method that initializes all the data values. No other methods are required if you make the data values public. The main program should read the file CScourses.txt and create a Course object for each course in the file. Each line of data in the file has the course information in the same order as shown above. Except for the title of the class, all data are one word separated by white space. As your program reads each line of the file, the Course object should be put into a hash table. A hash table is a data structure that allows you to retrieve information based on a key. Your program will put the Course objects in the table using the course number as the key. You will need to create a hash table object at the beginning of your program with java .util.Hashtable hash java.util.Hashtable(); = new You can put data into the hash table using the put method and retrieve data using the get method. The put method has two parameters, the key and the object to be put in the hash table. The get method has only one parameter, the key to be used to find the corresponding object. To put the data in the hash table use Course csClass = new Course ( courseNumber, crn, other parameters) ; hash.putcourseNumber, csClass) After your program has read all of the data from the file, it should ask the user to enter a course number (such as COMP163) from the keyboard. It should then use the get method to find the data in the hash table and display the information. The get method will return the Course object with the given course number. If the get method does not find a class in the hash table with that number, it will return null. Your program must check if the returned value is equal to null and, if it is, display a message indicating there is no such class. EnteredNumber = keyboard. next () ; Course found-hash.get EnteredNumber)i if (found == null) // if course is not in the table page I of 2 COMP163 Course Information Program

Explanation / Answer

public class Course {

String courseNumber,crn,lastName,days,startTime;

String room,title;

public Course(String courseNumber, String crn, String lastName, String days, String startTime, String room,

String title) {

this.courseNumber = courseNumber;

this.crn = crn;

this.lastName = lastName;

this.days = days;

this.startTime = startTime;

this.room = room;

this.title = title;

}

}

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.Hashtable;

import java.util.Scanner;

public class Check {

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

String courseNumber,crn,lastName,days,startTime;

String room,title;

Hashtable<String,Course> hash = new Hashtable<String,Course>();

Scanner sc = new Scanner(new File("C:/Users/Acer/Desktop/CScourses.txt"));

while(sc.hasNext()){

courseNumber = sc.next();

crn = sc.next();

lastName = sc.next();

days = sc.next();

startTime = sc.next();

room = sc.next();

title = sc.nextLine();

Course course = new Course(courseNumber,crn,lastName,days,startTime,room,title);

hash.put(courseNumber, course);

}

sc.close();

  

Scanner scan = new Scanner(System.in);

System.out.println("Enter a course number:");

String input;

input = scan.next();

while(true){

Course output = hash.get(input);

if(output == null){

System.out.println("No such course found");

}else{

System.out.println("CRN: " + output.crn + " Instructor: " + output.lastName +

" " + output.title + " days: " + output.days + " starts: " + output.startTime

+ " " + output.room);

}

if(input.equals("END")){

break;

}

System.out.println("Enter a course number:");

input = scan.next();

}

scan.close();

}

}

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