HomeWork7(Generics and Collections)(Group modifier)

DeleteStudentException.java

public class DeleteStudentException extends Exception {
    
    @Override
    public String getMessage() {
        return "Этот студент уже изгнан из группы или Вам кажется, что в группе студентов больше чем 10!";
    }
    
}

Group.java

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;

/**
 *
 * @author kamaz
 */
public class Group implements Voenkomat {

    private ArrayList<Student> student = new ArrayList<>();
    private int count = 10;

    public Group() {
        super();
    }

    public ArrayList<Student> getStudent() {
        return student;
    }

    public void setStudent(ArrayList<Student> student) {
        this.student = student;
    }

    public void setStudent(Student st) throws GroupException {
        int i = student.size();
        if (i >= count) {
            throw new GroupException();
        }
        student.add(st);
        return;
    }

    public void writeGroup(File file) throws FileNotFoundException {
        StringBuffer bf = new StringBuffer();
        try (PrintWriter pw = new PrintWriter(file)) {
            for (int i = 0; i < student.size(); i++) {
                bf.append(student.get(i).getName() + " " + student.get(i).getSurname() + " "
                        + student.get(i).getSurnameTwo() + " " + student.get(i).getAge() + " "
                        + student.get(i).isSex());
                bf.append(System.lineSeparator());
            }
            pw.print(bf);
            System.out.println("Writed");
        } catch (FileNotFoundException e) {
            System.out.println("File not found!!!");
        }
    }

    public Group returnGroup(File file) throws GroupException, IOException {
        Group gpTwo = new Group();
        try (BufferedReader br = new BufferedReader(new FileReader(file))) {
            String str = " ";
            for (; (str = br.readLine()) != null;) {
                String[] arr = str.split(" ");
                String name = arr[0];
                String surname = arr[1];
                String surnameTwo = arr[2];
                int age = Integer.parseInt(arr[3]);
                boolean sex = Boolean.valueOf(arr[4]);
                Student st = new Student(name, surname, surnameTwo, age, sex);
                gpTwo.setStudent(st);
            }
        } catch (FileNotFoundException e) {
            System.out.println("File not found!");
        } catch (ArrayIndexOutOfBoundsException e) {
            e.printStackTrace();
        } catch (IOException e) {
            System.out.println("ERROR");
        }
        return gpTwo;
    }

    public void deleteStudent(int index) throws DeleteStudentException {
        try {
            int size = student.size();
            if (size <= index) {
                throw new DeleteStudentException();
            }
            student.remove(index);
            System.out.println("Студент с места: " + (index) + " изгнан из группы");
        } catch (DeleteStudentException e) {
            System.out.println(e.getMessage());
        }
    }

    public String foundStudent(int index) {
        return student.get(index).getSurname();
    }

    @Override
    public ArrayList<Student> getVon() {
        ArrayList<Student> list = new ArrayList<>();
        for (int i = 0; i < student.size(); i += 1) {
            if (student.get(i).getAge() >= 18 && student.get(i).isSex() == true) {
                list.add(student.get(i));
            }
        }
        return list;
    }

    public void sortByParametrs() {
        Scanner sc = new Scanner(System.in);
        System.out.println("Выберите за каким параметром хотите отсортировать студентов (name, surname, surname Two, age, sex): ");
        String parametr = sc.nextLine();
        try {
            if (parametr.equals("name")) {
                student.sort(Comparator.comparing(Student::getName));
            }
            if (parametr.equals("surname")) {
                student.sort(Comparator.comparing(Student::getSurname));
            }
            if (parametr.equals("surname Two")) {
                student.sort(Comparator.comparing(Student::getSurnameTwo));
            }
            if (parametr.equals("age")) {
                student.sort(Comparator.comparing(Student::getAge));
            }
            if (parametr.equals("sex")) {
                student.sort(Comparator.comparing(Student::isSex));
            } else {
                throw new NotCorrectParametrException();
            }
        } catch (NotCorrectParametrException e) {
            System.out.println(e.getMessage());
        }
    }

    public void setNewStudent(int index) throws GroupException, Exception {
        try {
            Scanner sc = new Scanner(System.in);
            System.out.println("Введите name");
            String name = sc.nextLine();
            System.out.println("Введите surname");
            String surname = sc.nextLine();
            System.out.println("Введите surnameTwo");
            String surnameTwo = sc.nextLine();
            System.out.println("Введите age");
            int age = sc.nextInt();
            System.out.println("Введите sex");
            boolean sex = sc.nextBoolean();

            Student stud = new Student(name, surname, surnameTwo, age, sex);

            int i = student.size();
            if (i >= count) {
                throw new GroupException();
            }
            student.add(index, stud);
            System.out.println("Студент внесен в список: " + stud);
        } catch (GroupException e) {
            System.out.println(e.getMessage());
        } catch (Exception e) {
            System.out.println("Вы ввели не корректные параметры");
        }
    }

    @Override
    public String toString() {
        student.sort(Comparator.comparing(Student::getAge));
        String n = String.valueOf(student);
        return "Group sorted: " + n;

    }

//    @Override
//    public String toString() {
//        return "Group{" + "student=" + student + '}';
//    }
}

GroupException.java

public class GroupException extends Exception {
    
    @Override
    public String getMessage() {
        return "В этой группе больше студентов не может быть!";
    }
    
}

Human.java

public class Human {
    
    private String name;
    private String surname;
    private String surnameTwo;
    private int age;
    private boolean sex;

    public Human(String name, String surname, String surnameTwo, int age, boolean sex) {
        this.name = name;
        this.surname = surname;
        this.surnameTwo = surnameTwo;
        this.age = age;
        this.sex = sex;
    }
    
    public Human() {
        super();
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSurname() {
        return surname;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

    public String getSurnameTwo() {
        return surnameTwo;
    }

    public void setSurnameTwo(String surnameTwo) {
        this.surnameTwo = surnameTwo;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public boolean isSex() {
        return sex;
    }

    public void setSex(boolean sex) {
        this.sex = sex;
    }

    @Override
    public String toString() {
        return "Student: " + name + ", " + surname + ", " + surnameTwo + ", " + age + ", " + sex + "; ";
    }
    
}

Main.java

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

public class Main {

    public static void main(String[] args) throws FileNotFoundException, IOException, GroupException,
            DeleteStudentException, NotCorrectParametrException, Exception {

        Group gp = new Group();

        Student one = new Student("Ivan", "Petrov", "Vasilievich", 18, true);
        Student two = new Student("Anna", "Petrova", "Igorevna", 17, false);
        Student three = new Student("Olia", "Vetrova", "Pavlovna", 21, false);
        Student four = new Student("Igor", "Shvedenko", "Rostyslavovych", 19, true);
        Student five = new Student("Roman", "Kryvobok", "Valerievich", 15, true);
        Student six = new Student("Kostiantyn", "Khalyk", "Stepanovych", 31, true);
        Student seven = new Student("Tatyana", "Bigun", "Oleksandrovna", 26, false);
        Student eight = new Student("Anastasia", "Isachenko", "Valentinovna", 25, false);
        Student nine = new Student("Viacheslav", "Zhyzhula", "Olegovych", 14, true);
        Student ten = new Student("Kamila", "Tanchyk", "Kostiantynovna", 21, false);

        Student eleven = new Student("Misha", "Bogatyriov", "Ivanovych", 30, true);
        Student twelve = new Student("Oksana", "Fedorinenko", "Bogdanovna", 30, false);

        gp.setStudent(one);
        gp.setStudent(two);
        gp.setStudent(three);
        gp.setStudent(four);
        gp.setStudent(five);
        gp.setStudent(six);
        gp.setStudent(seven);
        gp.setStudent(eight);
        gp.setStudent(nine);
        gp.setStudent(ten);

//        gp.setStudent(eleven);
//        gp.setStudent(twelve);
        System.out.println("Group: " + gp);

        File file = new File("a.txt");
        file.createNewFile();
        gp.writeGroup(file);

        Group gpTwo = gp.returnGroup(file);
        System.out.println(gpTwo);

        System.out.println();
        gp.deleteStudent(0);
        System.out.println(gp);

        System.out.println();
        gp.deleteStudent(11);
        System.out.println(gp);

        System.out.println();
        System.out.println(gp.foundStudent(0));

        System.out.println();
        System.out.println("Военкомат = " + gp.getVon());

        System.out.println();
//        gp.sortByParametrs();
//        System.out.println("Sort = " + gp);
//        gp.setNewStudent(4);
//        System.out.println(gp);
        System.out.println();
        System.out.println(gp);
    }

}

NotCorrectParametrException.java

public class NotCorrectParametrException extends Exception {
    
    @Override
    public String getMessage() {
        return "Вы ввели не корректный параметр сортировки!";
    }
    
}

Student.java

public class Student extends Human {

    public Student(String name, String surname, String surnameTwo, int age, boolean sex) {
        super(name, surname, surnameTwo, age, sex);
    }
    
    public Student() {
        super();
    }

    @Override
    public String toString() {
        return super.toString(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setSex(boolean sex) {
        super.setSex(sex); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean isSex() {
        return super.isSex(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setAge(int age) {
        super.setAge(age); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getAge() {
        return super.getAge(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setSurnameTwo(String surnameTwo) {
        super.setSurnameTwo(surnameTwo); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getSurnameTwo() {
        return super.getSurnameTwo(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setSurname(String surname) {
        super.setSurname(surname); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getSurname() {
        return super.getSurname(); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setName(String name) {
        super.setName(name); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getName() {
        return super.getName(); //To change body of generated methods, choose Tools | Templates.
    }
    
}

Voenkomat.java

import java.util.ArrayList;

/**
 *
 * @author kamaz
 */
public interface Voenkomat {
    
    public ArrayList<Student> getVon();    

}