Hi,

I am having trouble with my code output.

I have attached my codes in parts as well as the incorrect output.

Any sort of help will be appreciated.

public clas private Subject subject; private String group; private int number; private String day; private int start; private int duration; private String room; private int capacity; private int enrolled = 0; public Activity(Subject subject, String group, int number, String day, int start, int duration, String room, int capacity) this. subject = subject; this. group = group; this. number = number; this . day = day; this. start= start; this . duration = duration; this. room = room; this. capacity = capacity; public Subject getSubject ( ) return subject; public String getGroup( ) return group public int getNumber ( ) return number; / /NEW public boolean isFull( ) if (enrolled==capacity) return true; else return false; /NEW public int getCapacity( ) return capacity; /NEW public int getEnrolled( ) return enrolled; / /NEW public boolean hasCapacity ( ) if (enrolled activities = new LinkedList( ); public Student (String number, String name) this . number = number; this . name =name; public boolean hasNumber (String number) return number . equals (this. number) ; public String getNumber( ) return number; public void addEnrolledActivityToList(Activity activity) activities. add (activity); public void viewEnrolledActivity ( ) for (Activity activity: activities) System. out . printIn(activity) ; public void removeEnrolledActivity(Activity activity) activities. remove (activity); public Activity has(mp1 (Subject subject) Activity toReturn = null; for (Activity activity: activities) if (activity. getSubject() == subject && activity. getGroup() . equals ("(mp1") ) toReturn = activity; return toReturn; / /NEW public Activity hasSubjectGroup (Subject subject, String group) Activity hasSubGroup = null; for (Activity activity: activities) if (activity. getSubject() == subject && activity. getGroup() . equals (group) ) hasSubGroup = activity; } return hasSubGroup; } aOverride public String toString ( ) return number + " " + name ; public void removeEnrolled ( ) for(Activity activity: activities) } activity. withdrawStudent ( ) ;[import java. util. *; public class Subject private int number; private String name; private LinkedList activities = new LinkedList( ) ; public Subject (int number, String name) //initialise the fields this . number = number; this . name = name public void addActivity (String group, int number, String day, int start, int duration, String room, int capacity) activities. add (new Activity (this, group, number, day, start, duration, room, capacity) ) ; public void printActivity (Subject subject) for (Activity activity: activities) if (activity. getSubject ()== subject) System. out . print in (activity); public Activity enrolInActivity (String group, int activityNumber) Activity enrolledActivity = null; for (Activity activity: activities) if(activity. getGroup () . equals (group) && activity. getNumber() == activityNumber) if (activity. hasCapacity ( ) ) activity . enrolStudent() ; enrolledActivity = activity; } / /System. out . printin("Enrolled in Subject"); else System. out . print In("No available seats"); return enrolledActivity; public Activity autoEnrolInActivity (String group, int activityNumber) Activity enrolledActivity = null; for (Activity activity: activities) if(activity. getGroup ( ) . equals ("Cmp1") && activity. getNumber( ) == activityNumber) if (activity . hasCapacity ( ) ) activity . enrolStudent ( ) ; enrolledActivity = activity; / /System. out . printIn("Enrolled in Subject"); return enrolledActivity; return null; public boolean checkActivity (String group, int activityNumber) for (Activity activity: activities) if (activity. getGroup () . equals (group) && activity. getNumber () == activityNumber) return true; return false ; / /NEW //checks if activity is full or not public Activity autoEnrol (String group) for (Activity activity: activities) if (autoEnrolInActivity (group, activity . getNumber( ) )== null) / /System. out . printin("No available seats") ; //return null;else return activity; } return null; / / NEW public boolean checkSubjectActivity(int subjectNumber, String group) for (Activity activity: activities) if (number == subjectNumber && activity . getGroup ( ) . equals (group) ) return true; return false; public void withdrawStudentFromActivity(Activity activity) activity . withdrawStudent ( ) ; aOverride public String toString() return number + " " + name; public String getName ( ) return name; public int getNumber( ) return number; public String printSelectedActivity( ) for (Activity activity: activities) return activity . toString(); return null;public void showStudentOptions (Student student) char choice; while( (choice = StudentReadChoice( ) ) != 'x' ) switch (choice) case 'v': studentViewEnrolledActivities (student) ; break; case 'e': studentEnrolInActivity (student) ; break; case 'w': withdrawFromActivity (student); break; default: studentOptionsHelp( ) ; break; private char StudentReadChoice() System. out. print ("Choice (v/e/w/x) : ") ; return In. nextChar ( ); private void studentOptionsHelp( ) System. out . print In("Student menu options" ) ; System. out . printIn("v = view my activities"); System. out . print In("e = enrol in an activity"); System, out . print In("w = withdraw from an activity"); System. out . printIn("x = exit"); public void studentViewEnrolledActivities (Student student) student. viewEnrolledActivity ( ) ; public void studentEnrolInActivity (Student student) int subjectNumber=0; Activity enrolledActivity, tempActivity = null; String tempInput; System. out . printIn("Select a subject"); for (Subject subject: subjects) System. out. printIn (subject); subjectNumber = readSubjectNumber ( ) ; Subject subject = subject (subjectNumber) ; if ( checkSubject ( subjectNumber) ) { / / check subject System, out . print In("Select an activity"); if (subject !=null) { subject. printActivity(subject) ; System. out. print ("Activity code (group:activity) : "); String choiceInput =In. nextLine( ) ; tempInput = choiceInput. split(":"); String group = tempInput [0] ; if ( tempInput. length == 2) int activityNumber = Integer . parseInt ( tempInput [1] ) ; if ( checkActivity (subject, group, activityNumber )== false) System. out. printIn("No such activity"); else if (group. equals ("Lec1") ) enrolledActivity = subject. enrolInActivity (group, activityNumber) ; if(enrolledActivity!=null) w student. addEnrolledActivityToList(enrolledActivity) ; else tempActivity = student, hasCmpl (subject) ; if (tempActivity != null) student. removeEnrolledActivity( tempActivity) ; subject.withdrawStudentFromActivity(tempActivity) ; enrolledActivity = subject. enrolInActivity(group, activityNumber) ;tempActivity = student , has(mp1(subject) ; if (tempActivity != null) student. removeEnrolledActivity(tempActivity) ; subject. withdrawStudentFromActivity(tempActivity) ; enrolledActivity = subject. enrolInActivity(group, activityNumber) ; if (enrolledActivity!=null) } student. addEnrolledActivityToList(enrolledActivity); } else enrolledActivity = subject. enrolInActivity (group, activityNumber) ; if (enrolledActivity!=null) student . addEnrolledActivityToList (enrolledActivity) ; } else if(tempInput. length == 1) Subject subSubject = subject (subjectNumber) ; Activity activity = subSubject. autoEnrol(tempInput [0] ) ; if (activity!=null) student . addEnrolledActivityToList (activity) ; else System. out. printIn ("No available seats"); } else System, out. printIn ("No such subject"); private int readSubjectNumber ( ) System. out. print ("Subject number: ") ; int number = In. nextInt( ) ; } return number; / /NEW public void withdrawFromActivity (Student student) String tempInput; System. out. print ("Activity code (subject:group) : ") ; String choiceInput =In. nextLine( ) ; tempInput = choiceInput. split(":"); String group = tempInput [1] ; int subjectNumber = Integer . parseInt ( tempInput [0] ) ; Subject subject = subject (subjectNumber) ; Activity subjectEnrolled = null; if ( checkSubject (subjectNumber) ) if ( checkSubjectActivity (subject, subjectNumber , group)= false) System, out. printIn("Not enrolled in activity"); } else subjectEnrolled = student. hasSubjectGroup (subject, group) ; { if (subjectEnrolled != null) student. removeEnrolledActivity (subjectEnrolled) ; subject. withdrawStudentFromActivity (subjectEnrolled) ; } else //System. out . printIn ("subject not enrolled yet") ; System. out. print In("Not enrolled in activity");import java. util.*; public class University private LinkedList subjects = new LinkedList( ) ; private LinkedList students = new LinkedList( ) ; public University( ) Subject sub1 = new Subject (48024, "Applications Programming") ; Subject sub2 = new Subject (31284, "Web Services Development" ) ; addActivities (sub1) ; addActivities (sub2) ; subjects. add (sub1) ; subjects . add ( sub2) ; public void addActivities (Subject subject) if (subject . getName( ) . equals ("Applications Programming") ) subject . addActivity ("Lec1", 1, "Wed" , 18, 1, "CB11. 00. 405" , 200) ; subject . addActivity ("Cmp1", 1, "Wed", 19,2, "CB11. B1. 403", 2) ; subject. addActivity("Cmp1", 2, "Wed", 19,2, "C "CB11. B1. 401", 2) ; } subject. addActivity("Cmp1", 3, "Wed", 19,2, "CB11. B1. 402",2) ; else subject . addActivity ("Lec1", 1, "Tue", 16, 1, "CB02. 03. 002", 160) ; subject. addActivity("Cmp1", 1," subject. addActivity ("Cmp1", 2," ",1, "Tue" , 9,2, "CB11. B1. 102",30); ", 2, "Tue" , 9,2, "CB11. B1. 103", 30) ; subject. addActivity ("Cmp1",3, "Tue", 14, 2, "CB11. B1. 102", 30); subject. addActivity("Cmp1", 4, "Tue", 14, 2, "CB11. B1. 103",30); public static void main (String args) new University ( ) . use ( ) ; public void use( ) char choice; while((choice = readChoice( ) ) != 'x' ) switch (choice) case 'a': addStudent ( ) ; break; case 'r' : removeStudent ( ) ; break; case 'v': viewAllStudents ( ); break; case 'l': login( ); break; default: help(); break; private char readChoice( ) { System. out. print ("Choice (a/r/v/1/x) : "); return In. nextChar ( ); private void help( ) { System. out. print In ("University menu options") ; System. out. print ln("a = add a student") ; System. out. println("r = remove a student"); System. out. printIn("v = view all students") ; System. out . print ln("l = login"); System. out. printIn("x = exit") ; public void addStudent ( ) String number = readNumber ( ) ; if (checkNumber (number) ) } System. out. print In("Student number already exists"); else String name = readName ( ) ; students. add ( new Student ( number, name) ) ;public void removestudent( ) String number = readNumber ( ) ; for (int i =0; i it = students. iterator(); it. hasNext(); ) if (it. next ( ) . hasNumber (number) ) it. remove ( ) ; }* / System. out . print In("No such student") ; public void viewAllStudents ( ) for (Student student : students) // removeStudent ( ) ; System. out . print In ( student) ; public void login() String number = readNumber ( ) ; Student student = student (number) ; if (student!= null) showStudentOptions (student) ; else System. out. print in("No such student") ; private String readNumber ( ) System. out . print ("Number: ") ; String number = In. nextLine( ) ; return number; private String readName ( ) System. out. print ("Name: ") ; return In. nextLine ( ) ; private boolean checkNumber (String number) for (Student student: students) if (student. hasNumber(number) ) } return true; return false; private Student student (String number) for (Student student: students) { if (student. hasNumber (number) ) return student; return null; }System. out . printIn("Not enrolled in activity"); } // System. out. print In("Not enrolled subject") ; private boolean checkSubject (int number) for (Subject subject: subjects) if ( subject. getNumber ( )== number) return true; } return false; private Subject subject (int number) for (Subject subject: subjects) if (subject. getNumber ( )== number) } return subject; return null; private boolean checkActivity (Subject subject, String group, int number) if ( subject. checkActivity (group, number) ) return true; } else return false; private boolean checkSubjectActivity (Subject subject, int subjectNumber, String group) if ( subject. checkSubjectActivity(subjectNumber, group) ) return true; else return false; / /NEW //checks if activity is full or not { /*private boolean checkFullStatus (Subject subject, String group, int enrolled, int capacity) if (subject. checkFullStatus (group, enrolled, capacity) ) { return true; } else { return false; 3 * /