/**
 * Author: Tan Jun Qi
 * Student ID: 33872846
 * Unit: ICT 167 Principles of computer Science
 * Lecturer: Aaron Yeo
 * 
 */
public class Postgraduate extends Student {
    int assignment;
    int presentation;
    int exam;
    double overallmark;

    

    public Postgraduate(String type,String title,String firstname,String lastname,long StuID,int day,int month,int year,
            int assignment, int presentation, int exam) {
        super(type,title, firstname, lastname, StuID, day, month, year);
        this.assignment = assignment; 
        this.presentation = presentation;
        this.exam = exam;
        Overallmark();
    }
    
    public void Overallmark() // overide from super class
    {
        double totala = assignment*0.3; // times 30%
        double present = presentation*0.2; //time 20%
        double texam = exam*0.5; // times 50%
        double total = totala+present+texam; // add together 
        overallmark = total;
        
    }
    
    public double getOverallmark()
    {
        return overallmark; // overide from super clasee
    }
    
    
    public void print()
    {
        super.print();
        
        super.grade(overallmark);
        System.out.println("The assignment mark is "+assignment);
        System.out.println("The presentation is "+presentation);
        System.out.println("The exam mark is "+exam);
        System.out.printf("The overallmark is %.2f\ngS",overallmark);
        System.out.println("The grade is "+grade);
    }

    
    
    public int getAssignment() {
        return assignment;
    }

    public void setAssignment(int assignment) {
        this.assignment = assignment;
    }

    public int getPresentation() {
        return presentation;
    }

    public void setPresentation(int presentation) {
        this.presentation = presentation;
    }

    public int getExam() {
        return exam;
    }

    public void setExam(int exam) {
        this.exam = exam;
    }
    
    
}




/**
 *Author: Tan Jun Qi
 * Student ID: 33872846
 * Unit: ICT 167 Principles of computer Science
 * Lecturer: Aaron Yeo
 * 
 */

public class UndergradeStudent extends Student{
    int assignment1;
    int assignment2;
    int assignment3;
    int practical;
    int exam;
    double overallmark;

    public UndergradeStudent(String type, String title,String firstname, String lastname,long stuID,int day, int month, 
            int year,int assignment1, int assignment2, int assignment3,int practical, int exam) {
        
        super(type, title, firstname,lastname,stuID, day, month, year);
        this.assignment1 = assignment1;
        this.assignment2 = assignment2;
        this.assignment3 = assignment3;
        this.practical = practical;
        this.exam = exam;
        Overallmark(); // calculate marks when object created 
    }
    
    public UndergradeStudent()
    {
        
    }
    
    
    
    public void Overallmark()
    { // overide from super class
        double ass1 = assignment1*0.15; // 15%
        double ass2 = assignment2*0.15;//15%
        double ass3 = assignment3*0.15;//15%
        double exam1 = exam*0.45;//45*
        double prac = practical*0.1;//10%
        double overallmark = ass1+ass2+ass3+exam1+prac; // adding them up 
        this.overallmark = overallmark; // assigned to instance variable
                
        
        
        
        
    }

    public double getOverallmark() {
         //overide from super class
        return overallmark;
    }

    
    
    
    
    public void print()
    {
        super.print();
        super.grade(overallmark);
        System.out.println("The mark for assignment 1 is "+assignment1);
        System.out.println("The mark for assignment 2 is "+assignment2);
        System.out.println("The mark for assignment 3 is "+assignment3);
        System.out.println("The mark for practical is "+practical);
        System.out.println("The mark for exam is "+exam);
        System.out.printf("The overallmark is %.2f\n",overallmark);
        System.out.println("The grade is "+grade);
    }
    
    public int getAssignemnt1() {
        return assignment1;
    }

    public void setAssignemnt1(int assignemnt1) {
        this.assignment1 = assignemnt1;
    }

    public int getAssignment2() {
        return assignment2;
    }

    public void setAssignment2(int assignment2) {
        this.assignment2 = assignment2;
    }

    public int getAssignment3() {
        return assignment3;
    }

    public void setAssignment3(int assignment3) {
        this.assignment3 = assignment3;
    }

    public int getPractical() {
        return practical;
    }

    public void setPractical(int practical) {
        this.practical = practical;
    }

    public int getExam() {
        return exam;
    }

    public void setExam(int exam) {
        this.exam = exam;
    }
   
}



import java.util.*;


/**
 * Author: Tan Jun Qi
 * Student ID: 33872846
 * Unit: ICT 167 Principles of computer Science
 * Lecturer: Aaron Yeo
 */

public class Student  {
    String title;
    String firstname;
    String lastname;
    long stuID;
    int year;
    int month;
    int day;
    String grade;
    String type;
   

    
    
    
    public Student (String type, String title,String firstname, String lastname,long stuID,int day, int month, int year)
    { // Constructor used to create student object 
        this.title = title;
        this.firstname = firstname;
        this.lastname = lastname;
        this.stuID = stuID;
        this.year = year;
        this.month=month;
        this.day=day;
        this.type = type;
        
    }
    public Student()
    {
        
    }

    public String getType() {
        return type;
    }
    
    public void Overallmark() // it would polymorph into either Undergrad or student if its empty
    {
        
    }
    
    
    
    
    
    public void grade(double overallmark)
    { // assignning grade t0 parameter overallmark
        if(overallmark>=80)
        {
            grade = "HD";
        }
        else if(overallmark>=70)
        {
            grade = "D";
        }
        else if(overallmark>=60)
        {
            grade = "C";
        }
        else if (overallmark>=50)
        {
            grade = "P";
        }
        else if (overallmark<50)
        {
            grade = "N";
        }   
    }
   
    
    public boolean equals(Student s1, Student s2)
    {
        boolean equals = false;
        
        if(s1.getStuID()==s2.getStuID())
        {
            equals = true;
        }
        
        return equals;
                
                
    }
    
    public void sort(ArrayList<Student> stu)
    {
        
        boolean swap = true;
        while(swap)
        {
        swap = false;
        for(int i =1;i<stu.size();i++)
        {
            Student second = stu.get(i); // assigning index 1 student into student variable second
            Student first = stu.get(i-1); // assigning index 0 student into student variable first 
            
                if(second.getStuID()<first.getStuID()) 
                {
                    stu.set(i,first); // swap index 1 with index 0 
                    stu.set(i-1, second); // swap index 0 to index 1 
                    swap = true;
                }
            
        }
        
        }
       
    }
    
    public void print()
    {
        System.out.println(type);
        System.out.println("The Salutation is "+title);
        System.out.println("The first name is "+firstname);
        System.out.println("the last name is "+lastname);
        System.out.println("The student ID is "+stuID);
        System.out.println("The day of birth is "+day);
        System.out.println("The month of birth is "+month);
        System.out.println("The year of birth is "+year);
        
        
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getFirstname() {
        return firstname;
    }

    public void setFirstname(String firstname) {
        this.firstname = firstname;
    }

    public String getLastname() {
        return lastname;
    }

    public void setLastname(String lastname) {
        this.lastname = lastname;
    }

    public long getStuID() {
        return stuID;
    }

    public void setStuID(int stuID) {
        this.stuID = stuID;
    }

    
    
    
    
    public double getOverallmark()
    {
        return 0; // it would polymorph to under grade or post graduate 
    }
    

    public String getGrade() {
        return grade;
    }

    public void setGrade(String grade) {
        this.grade = grade;
    }
}


/*
 * Author: Tan Jun Qi
 * Student ID: 33872846
 * Unit: ICT 167 Principles of computer Science
 * Lecturer: Aaron Yeo
 */

/**
 *
 * @author mega-
 */
public class StudentTest  {
    public static void main(String [] args)
    {
        Scanner read = new Scanner(System.in);
        int undercount = 0;
        int postcount = 0;
        int addchoice = 0;
        double Uavg=0;
        double Pavg=0;
        
        System.out.println("Type 1 for UnderGrad and 2 for PostGrad");
        int choice = read.nextInt(); // reading if it 1 or 2 
        read.nextLine();
        while(choice!=1 && choice!=2) // if choice not 1 and not 2 
        {
            System.out.println("Invalid choice, please re-enter your choice again");
            choice = read.nextInt(); // prompt again 
            
        }
        
        ArrayList<Student> Ustu = new ArrayList<Student>(); // create arraylist of student object 
        // Reading the file to the arraylist 
            try{
            String fileName = "student.txt";
            File file = new File(fileName); // create a new file 
            Scanner inputstream = new Scanner(file);// ready to read from the new created file 
            
            while(inputstream.hasNextLine())//whille there is next line of records
            {
            String line = inputstream.nextLine(); // read the line of record  
            String [] linearray = line.split(","); // Store the individual data from file seperated by commas.
            String status = linearray[0]; // Determining if the student is recorded as post or under.
            String title = linearray[1];
            String firstname = linearray[2];
            String lastname = linearray[3];
            long Stuid = Long.parseLong(linearray[4]);
            int day = Integer.parseInt(linearray[5]);
            int month = Integer.parseInt(linearray[6]);
            int year = Integer.parseInt(linearray[7]);
            if(status.equals("Under")) 
            {
            int ass1 = Integer.parseInt(linearray[8]);
            int ass2 = Integer.parseInt(linearray[9]);
            int ass3 = Integer.parseInt(linearray[10]);
            int prac = Integer.parseInt(linearray[11]);
            int exam = Integer.parseInt(linearray[12]);
            Ustu.add (new UndergradeStudent(status,title,firstname,lastname,Stuid,day,month,
            year,ass1,ass2,ass3,prac,exam)); // creating object undergradestudent with the constructor and store in arraylist
            undercount++;
            }
            else if(status.equals("Graduate"))
            {
            int assignment = Integer.parseInt(linearray[8]);
            int presentation = Integer.parseInt(linearray[9]);
            int exam = Integer.parseInt(linearray[10]);
                Ustu.add(new Postgraduate(status,title,firstname,lastname,Stuid,day,month
                ,year,assignment,presentation,exam)); // creating object postgraduate and store in arraylist 
            postcount++;
            }
            }
                 
            }
            catch (FileNotFoundException e) // if file cannot be found 
                    {
                        System.out.println("File not found");
                        
                        
                    }
            while(addchoice!=1)
            {
            System.out.println("");
            Menu(); // show the menu from the method 
            addchoice=read.nextInt(); // prompt for the method choice 
            read.nextLine(); // cleaning the scanner
            switch(addchoice)
            {
                case 1:
                        {
                            System.out.println("-----------Exit system--------/");
                             break;  
                        }
                case 2:
                        {
                            Addstudent(addchoice,choice,Ustu); // call from method to add student manually or from file 
                            break;
                    
                        }
                case 3:
                        {
                            for(Student s: Ustu)
                            { // loop all student in arraylist 
                                s.print(); // print all object in arraylist 
                                System.out.println("");
                            }
                            break;
                    
                        }
                case 4:
                        {
                            double sum=0;
                            double sum1=0;
                            double avg=0;
                            double avg1=0;
                            int ucount=0;
                            int gcount=0;
                            for(int i = 0;i<Ustu.size();i++)
                              {
                                if(Ustu.get(i) instanceof UndergradeStudent)
                                 { // if arraylist index is an object of undergrad student 
                                    sum += Ustu.get(i).getOverallmark(); // get the overallmark of the student 
                                    ucount++; // count how many undergrad student 
               
                                 }
                            else if(Ustu.get(i) instanceof Postgraduate)
                            {
                                sum1+=Ustu.get(i).getOverallmark();
                                gcount++;
                            }
                                 
                             }
                            // total overallmark of post/undergrad divide by total number of undergrade student or poststudent
                            avg = sum/ucount;
                            avg1 = sum1/gcount;
                            System.out.println("The overallmark for undergrad student is "
                                     +avg+" and post graduate is "+avg1);
                            Uavg = avg;
                            Pavg = avg1;
                            break;
                              }
                        
                case 5:
                    
                            {
                               int Ucount=0; 
                               int Pcount=0;
                               double track=0;
                                for (int i = 0;i<Ustu.size();i++)
                                {
                                    if(Ustu.get(i) instanceof UndergradeStudent)
                                    {// instance of = Ustu.get(i).gettype.equals("Under);
                                        track = Ustu.get(i).getOverallmark();
                                        // getting overallmark of student 
                                        if(track>=Uavg)
                                        { // if less than total overall marks 
                                           Ucount++;  // count student
                                        }
                                    }
                                    else if(Ustu.get(i) instanceof Postgraduate)
                                    {
                                        track = Ustu.get(i).getOverallmark();
                                        if(track>=Pavg)
                                        {
                                            Pcount++;
                                        }
                                    }
                                    
                                }
                                System.out.println("The number of undergraduate student that has more than the overallmark is "
                                        +Ucount+ "and Postgraduate is "+Pcount);
                                break;
                    
                            }
                            
                case 6:
                            {
                                boolean found = false;
                                System.out.println("Please enter the student ID to search");
                                long search = read.nextLong();
                                for(int i = 0;i<Ustu.size();i++)
                                {
                                    if(search==Ustu.get(i).stuID)
                                    { // search for  student ID 
                                        System.out.println("");
                                        Ustu.get(i).print(); // print if search id found student id 
                                        found=true;
                                    }
                                }
                                if(found == false)
                                {
                                    System.out.println("");
                                    System.out.println("No student found with the Student ID");
                                }
                                break;
                                   
                    
                            }
                case 7:
                            {
                                boolean found = false;
                                System.out.println("Please enter the first name ");
                                String fname = read.nextLine();
                                System.out.println("please enter the last name");
                                String lname = read.nextLine();
                                for(int i = 0;i<Ustu.size();i++)
                                {
                                    if(fname.equalsIgnoreCase(Ustu.get(i).firstname) && lname.equalsIgnoreCase(Ustu.get(i).lastname))
                                    { // if user input firstname and last name match with arraylist index 
                                        System.out.println("");
                                        Ustu.get(i).print(); // print arraylist index 
                                        found=true;
                                    }
                                }
                                if(found == false)
                                {
                                    System.out.println(" ");
                                    System.out.println("Student data not found");
                                }
                                break;
                                
                              
                            }
                case 8:            
                            {
                               
                               Student s = Ustu.get(0); // assigning arraylist index 0 to student type s
                               s.sort(Ustu); // sorting the array list 
                               for(Student c:Ustu)
                               {
                                   c.print(); // print out the sorted array list 
                               }
                               break;
                               
                            }
                case 9:
                            {
                                String file = "Sorted.CSV"; // create csv file name 
                                try{
                                PrintWriter OutputStream = null; 
                                OutputStream = new PrintWriter(file);
                                OutputStream.println("StudentID"+","+"First name"+","+"Last name"+","+"day of birth"+","
                                        + "Month of birth"+","+"Year of birth"+","+"Grade"+","+"Overallmark"); // set the title for the csv record 
                                for(Student s:Ustu)
                                {
                                    OutputStream.println(s.stuID+","+s.firstname+","+s.lastname+","+s.day+","+s.month+","+s.year+","
                                    +s.grade+","+s.getOverallmark()); // print out all of the details of the array list 
                                }
                                    System.out.println("data recorded to sorted.CSV file"); // print if all successfully converted 
                                OutputStream.close(); // close to save 
                                }
                                catch(FileNotFoundException e) // if file cannot be found print and exit system
                                        {
                                            System.out.println("File not found ");
                                            System.exit(0);
                                        }
                                
                    
                            }
            }
                        
                        
                         
           
        }
    }
    
                    
                    
                   
            
            
            
   public static void Menu()
    {
            System.out.println("Type in the numbers to commence the action");
            System.out.println("1. Quit");
            System.out.println("2. Add");
            System.out.println("3. Output");
            System.out.println("4. Compute");
            System.out.println("5. Determine and display");
            System.out.println("6. Student ID");
            System.out.println("7. Student name");
            System.out.println("8. Sort ");
            System.out.println("9. Print");
            
    }
   public static void Addstudent( int choice, int type, ArrayList<Student> stu)
   {
       Scanner read = new Scanner(System.in);
       System.out.println("Do you want to read from another file (yes or no)");
       String addchoice = read.nextLine();
       if(addchoice.equalsIgnoreCase("yes"))
       {
           System.out.println("please enter the file name to enter");
           String filename = read.nextLine();
           File file1 = new File(filename);
           try{
           Scanner inputstream = new Scanner(file1);
           while(inputstream.hasNextLine())
           {
            String line = inputstream.nextLine(); // read the line of record  
            String [] linearray = line.split(","); // Store the individual data from file seperated by commas.
            String status = linearray[0]; // Determining if the student is recorded as post or under.
            String title = linearray[1];
            String firstname = linearray[2];
            String lastname = linearray[3];
            long Stuid = Long.parseLong(linearray[4]);
            int day = Integer.parseInt(linearray[5]);
            int month = Integer.parseInt(linearray[6]);
            int year = Integer.parseInt(linearray[7]);
            if(status.equals("Under"))
            {
            int ass1 = Integer.parseInt(linearray[8]);
            int ass2 = Integer.parseInt(linearray[9]);
            int ass3 = Integer.parseInt(linearray[10]);
            int prac = Integer.parseInt(linearray[11]);
            int exam = Integer.parseInt(linearray[12]);
            stu.add (new UndergradeStudent(status,title,firstname,lastname,Stuid,day,month,
            year,ass1,ass2,ass3,prac,exam));
            
            }
            else if(status.equals("Graduate"))
            {
            int assignment = Integer.parseInt(linearray[8]);
            int presentation = Integer.parseInt(linearray[9]);
            int exam = Integer.parseInt(linearray[10]);
            stu.add(new Postgraduate(status,title,firstname,lastname,Stuid,day,month
                ,year,assignment,presentation,exam));
            }
           }
               System.out.println("");
               System.out.println("Record added successfully");
           }
           catch(FileNotFoundException e)
           {
               System.out.println("file not found");
               System.exit(0);
           }
           
       }
       
       System.out.println("Do you want to manually add student? (yes or no)");
       String mchoice = read.nextLine();
       
       if(mchoice.equalsIgnoreCase("yes")&&choice==2 && type ==1)
       {
       System.out.println("Enter how many undergrad students do you want to add?");
       int num = read.nextInt();
       int count = 1;
       read.nextLine();
       while(count<=num)
       {
       String status = "Under";  
       System.out.println("Please enter the Salutation for the new undergrad student");
       String title = read.nextLine();
       System.out.println("Please enter the firstname of the undergrad student");
       String first = read.nextLine();
       System.out.println("Please enter the lastname of the undergrad student");
       String last = read.nextLine();
       System.out.println("Please enter the student ID");
       long ID = read.nextLong();
       read.nextLine();
       System.out.println("Please enter the day of birth");
       int day = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the month of birth");
       int month = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the year of birth");
       int year = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the mark for assignment1");
       int ass1 = read.nextInt();
       read.nextLine();
       System.out.println("please enter the mark for assignment2");
       int ass2 = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the mark for assignment2");
       int ass3 = read.nextInt();
       read.nextLine();
       System.out.println("please enter the mark for practical");
       int prac = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the mark for exam");
       int exam = read.nextInt();
       read.nextLine();
       stu.add(new UndergradeStudent(status,title,first,last,ID,day,month,year,ass1,ass2,ass3,prac,exam));
       count++;
       }
       }
       
       else if (mchoice.equalsIgnoreCase("yes")&&choice==2 && type ==2)
       {
           System.out.println("How many post graduate students do you want to enter?");
           int num2 = read.nextInt();
           int count2 = 1;
           String status = "Graduate";
           while(count2<=num2)
           {
               
       System.out.println("Please enter the Salutation for the new postgraduate student");
       String title = read.nextLine();
       System.out.println("Please enter the firstname of the postgraduate student");
       String first = read.nextLine();
       System.out.println("Please enter the lastname of the postgraduate student");
       String last = read.nextLine();
       System.out.println("Please enter the student ID");
       long ID = read.nextLong();
       read.nextLine();
       System.out.println("Please enter the day of birth");
       int day = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the month of birth");
       int month = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the year of birth");
       int year = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the mark for group assignment");
       int groupass = read.nextInt();
       read.nextLine();
       System.out.println("please enter the mark for group presentation");
       int grouppre = read.nextInt();
       read.nextLine();
       System.out.println("Please enter the mark for exam");
       int exam = read.nextInt();
       stu.add(new Postgraduate(status,title,first,last,ID,day,month,year,groupass,grouppre,exam));
       count2++;
           }
       }
       
   }
   
   
   
}