You do not have to edit any parts of the code. Only handle exceptions where the code says /* INSERT CODE HERE */

The four exceptions you have to handle are:

NumberFormatException FileNotFoundException ArrayIndexOutOfBoundsException NoSuchFieldException 

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classes.txt:

14 CSCE155;3;3:00PM;;Computer Science I CSCE156;4;12:00PM;CSCE155;Computer Science II CSCE230;4;8:30AM;CSCE155;Computer Organization CSCE235;3;9:30AM;CSCE155;Introduction to Discrete Structures CSCE251;1;;CSCE155;Unix Programming Environment CSCE310;3;11:30AM;CSCE156;Data Structures and Algorithms CSCE322;3;4:30PM;CSCE156,CSCE230,CSCE311;Programming Language Concepts CSCE351;3;1:30PM;CSCE230,CSCE310,CSCE311 CSCE???;?;;; CSCE361;3;9:00AM;CSCE310,CSCE311;Software Engineering CSCE423;3;2:00PM;CSCE235,CSCE310,CSCE310;Design and Analysis of Algorithms CSCE428;3;4:30PM;CSCE235,CSCE310,CSCE311;Automata, Computation, and Formal Languages CSCE486;3;1:00PM;CSCE361;Computer Science Professional Development CSCE487;3;10:00AM;CSCE486;Computer Science Senior Design Project 

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Can anyone help me with this??

import java.util.*; import java.io.*; import java.lang.*;

public class Main { public static void main(String[] args) { Scanner classesInput; // Reads course information from classes.txt Scanner keyboard = new Scanner(System.in); // Reads input from user

/* INSERT CODE HERE */ // Attempts to create scanner to read from classes.txt classesInput = new Scanner(new File("classes.txt"));

String line; // Variable used to store each individual line String[] parts; // Variable used to store the parts of each line (after splitting it)

// The first line of the text file has the number of courses int numClasses = Integer.parseInt(classesInput.nextLine());

// Arrays to store information about each class String[] courseNumbers = new String[numClasses]; int[] creditHours = new int[numClasses]; String[] times = new String[numClasses]; String[] prerequisites = new String[numClasses]; String[] courseNames = new String[numClasses];

// Read through all of the classes for (int index = 0; index < numClasses; index++) { // Read one course at a time line = classesInput.nextLine(); // The course information is split by semi-colons parts = line.split(";");

// The course will always have a course number courseNumbers[index] = parts[0]; /* INSERT CODE HERE */ // Try to parse the credit hour amount creditHours[index] = Integer.parseInt(parts[1]); /* INSERT CODE HERE */ times[index] = parts[2]; if (times[index].equals("")) { // The times component is empty throw new NoSuchFieldException(); } /* INSERT CODE HERE */ prerequisites[index] = parts[3]; if (prerequisites[index].equals("")) { // The prerequisites component is empty throw new NoSuchFieldException(); } /* INSERT CODE HERE */ courseNames[index] = parts[4]; } /*Menu: * P - Print out courses * B - print all course names * C - print all course numbers * Q - Quit */ // Initialize 'input' to a known invalid value char input = '?'; do { // Prompt the user System.out.println("Choose an option: ");

// Read in the input, convert it to uppercase letters, then store ONLY the first letter input = (keyboard.nextLine()).toUpperCase().charAt(0); if (input == 'P') // Print out all course information printCourses(courseNumbers, creditHours, times, prerequisites, courseNames); else if (input == 'B') // Print out all course names printCourseNames(courseNames); else if (input == 'C') // Print out all course numbers printCourseNumbers(courseNumbers); else if (input == 'Q') { // Quit the program --> It will quit on the while condition check } else { // User has input an invalid option System.out.println("Invalid Option"); } } while(input != 'Q');

} public static void printCourseNames(String[] names) { System.out.println("COURSE NAMES:"); for (int i = 0; i < names.length; i++) { // Print out the individual course name, one per line System.out.println(names[i]); }

System.out.println(); // Print empty line after course names } /***************************************************************** * printCourseNumbers(...) takes in an array of course numbers and * prints each course number on an individual line * * @param nums An array of course numbers that were read in * from classes.txt --> Corresponds to courseNumbers from main(...) * * @return void Does not return any values ******************************************************************/ public static void printCourseNumbers(String[] nums) { System.out.println("COURSE NUMBERS:"); for (int i = 0; i < nums.length; i++) { // Print out the individual course numbers, one per line System.out.println(nums[i]); }

System.out.println(); // Print empty line after course numbers }

/***************************************************************** * printCourses(...) takes in all information for all courses and * prints out each course's course number, coures name, credit * hours, meeting time, and prerequisites * * @param num An array of course numbers that were read in * from classes.txt --> Corresponds to courseNumbers from main(...) * * @param hours An array of course credit hours for each course * that were read in from classes.txt --> Corresponds to * creditHours from main(...) * * @param times An array of meeting times for each course that * were read in from classes.txt --> Corresponds to times from * main(...) * * @param pre An array of prerequisites for each course, with * the format of prereq1,prereq2,prereq3,... that was read in from * classes.txt --> Corresponds to prerequisities from main(...) * * @param names An array of course names that were read in from * classes.txt --> Corresponds to courseNames from main(...) * * @return void Does not return any values ******************************************************************/ public static void printCourses(String[] num, int[] hours,String[] times, String[] pre, String[] names) { String hoursMessage; String prereqMessage;

for (int i = 0; i < num.length; i++) { // Determine if the credit hours amount is valid if (hours[i] == -1) { // Credit hours amount is invalid hoursMessage = num[i] + " does not have any credit hours"; } else { // Credit hours amount is valid hoursMessage = Integer.toString(hours[i]); }

// Format the prerequisites String[] parts = pre[i].split(","); StringBuilder prerequisitesBuilder = new StringBuilder(); String prerequisiteMessage = ""; for (int p = 0; p < parts.length; p++) { // Determine th number of prerequisites for each course if (parts.length > 1) { // If there is more than one prerequisite if (p < parts.length - 1) { // If it's not the last prerequisite prerequisitesBuilder.append(parts[p]); // Add the prerequisite to the string prerequisitesBuilder.append(", "); // Add a comma to separate the courses } else { // If it is the last prerequisite prerequisitesBuilder.append("and "); prerequisitesBuilder.append(parts[p]); // Add the last prerequisite } } else { // If it is the only prerequisite prerequisitesBuilder.append(parts[p]); } }

// Store the prerequisite information to print later prerequisiteMessage = prerequisitesBuilder.toString();

// Print the course information System.out.println("Course Number: " + num[i]); System.out.println("Name: " + names[i]); System.out.println("Credit Hours: " + hoursMessage); System.out.println("Time: " + times[i]); System.out.println("Prereqs : " + prerequisiteMessage); System.out.println(); // Print empty line after each course } } }