Task 17 — GUI + исключения

package Task17;

import javax.swing.*;

public class EmptyStringException extends IllegalArgumentException {
    public EmptyStringException(LabClassUI t) {
        JOptionPane.showMessageDialog(t, "Введите необходимые данные в поле ввода!");
    }
}

package Task17;

import java.util.Scanner;

public class FIOINN {
    public void red() {
        System.out.println("Введите ФИО");
        Scanner fi = new Scanner(System.in);
        String fio = fi.nextLine();
        System.out.println("Введите ИНН");
        Scanner in = new Scanner(System.in);
        String[] inn = in.nextLine().split("");
        try {
            if (inn.length == 12) {
                System.out.println("ИНН " + fio + " верный!");
            } else {
                throw new Proverka(fio);
            }
        }catch (Proverka e){
            System.out.println(e.getMessage());
        }
    }
    public static void main(String[] args){
        FIOINN n = new FIOINN();
        n.red();
    }
}

package Task17;

import java.util.ArrayList;

public class LabClass {
    public static void main(String[] args) {
        ArrayList<Student> new_stud = new ArrayList<>();
        new_stud.add(new Student("Иванов Иван Иванович", 123456, 4.0));
        new LabClassUI(new_stud);
    }
}

package Task17;

import java.util.ArrayList;

public class LabClassDriver {
    public int compare(Student stud1, Student stud2) {
        return Double.compare(stud1.getGPA(),stud2.getGPA());
    }
    public void quick_sort(ArrayList<Student> arr, int begin, int end) {
        if (begin < end) {
            int partIndex = part(arr, begin, end);
            quick_sort(arr, begin, partIndex-1);
            quick_sort(arr, partIndex+1, end);
        }
    }
    public int part(ArrayList<Student> arr, int begin, int end) {
        Student pt = arr.get(end);
        int i = (begin - 1);
        for (int j = begin; j < end; j++) {
            if (compare(arr.get(j), pt) >= 0) {
                i++;
                Student swapTemp = arr.get(i);
                arr.set(i, arr.get(j));
                arr.set(j, swapTemp);
            }
        }
        Student swapt = arr.get(i + 1);
        arr.set(i + 1, arr.get(end));
        arr.set(end, swapt);
        return i + 1;
    }
}

package Task17;

import javax.swing.*;
import javax.swing.event.MouseInputListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.JTableHeader;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

public class LabClassUI extends JFrame {

    private ArrayList<Student> students_arr;
    private JTable table;

    public LabClassUI(ArrayList<Student> students_arr){
        super("Сведения о студентах");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(520, 330);
        setResizable(false);
        this.students_arr = students_arr;
        JPanel panel = new JPanel(new FlowLayout());
        JButton add_btn = new JButton("Добавить");
        JButton sort_btn = new JButton("Отсортировать по GPA");
        JButton search_btn = new JButton("Поиск");
        panel.add(add_btn);
        panel.add(search_btn);
        panel.add(sort_btn);

        Object [][] exist_stud = new String[students_arr.size()][3];
        for(int i = 0; i < students_arr.size(); i++){
            exist_stud[i][0] = students_arr.get(i).getFio();
            exist_stud[i][1] = ((Integer)(students_arr.get(i).getiDNumber())).toString();
            exist_stud[i][2] = ((Double)(students_arr.get(i).getGPA())).toString();
        }
        table = new JTable( new DefaultTableModel(exist_stud, new String[] {"ФИО", "Номер", "GPA"})){
            @Override
            public boolean isCellEditable(int x, int y) {return false; }
        };
        JTableHeader header = table.getTableHeader();
        header.setReorderingAllowed(false);
        header.setResizingAllowed(false);
        add_btn.addActionListener(e -> {
            try {
                add();
            }catch (IllegalArgumentException ex){
                JOptionPane.showMessageDialog(this, ex.getMessage());
            }
        });
        search_btn.addActionListener(e->{
            try{
                find();
            } catch (StudentNotFoundException ex){
                JOptionPane.showMessageDialog(this, ex.getMessage());
            }
        });
        sort_btn.addMouseListener(new MouseInputListener() {
            @Override
            public void mouseClicked(MouseEvent e) {
                LabClassDriver ms = new LabClassDriver();
                ms.quick_sort(students_arr,0,students_arr.size()-1);
                DefaultTableModel table_mod = (DefaultTableModel) table.getModel();
                for(int i = 0; i<students_arr.size();i++) {
                    table_mod.removeRow(i);
                    Student st = students_arr.get(i);
                    table_mod.insertRow(i, new Object[]{st.getFio(), st.getiDNumber(), st.getGPA()});
                }
            }
            @Override
            public void mousePressed(MouseEvent e) {}
            @Override
            public void mouseReleased(MouseEvent e) {}
            @Override
            public void mouseEntered(MouseEvent e) {}
            @Override
            public void mouseExited(MouseEvent e) {}
            @Override
            public void mouseDragged(MouseEvent e) {}
            @Override
            public void mouseMoved(MouseEvent e) {}
        });


        getContentPane().add(panel, BorderLayout.SOUTH);
        getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
        setVisible(true);
    }

    private void add() {
        String fio = JOptionPane.showInputDialog("ФИО студента: ");
        if(fio.isEmpty()) try {
            throw new EmptyStringException(this);
        } catch (EmptyStringException e) {
            throw new RuntimeException(e);
        }
        String number = JOptionPane.showInputDialog("Номер дела:");


        if(number.isEmpty()) try {
            throw new EmptyStringException(this);
        } catch (EmptyStringException e) {
            throw new RuntimeException(e);
        }

        String GPA = JOptionPane.showInputDialog("GPA:");
        if(GPA.isEmpty()) try {
            throw new EmptyStringException(this);
        } catch (EmptyStringException e) {
            throw new RuntimeException(e);
        }
        students_arr.add(new Student(fio, Integer.parseInt(number), Double.parseDouble(GPA)));
        DefaultTableModel table_mod = (DefaultTableModel) table.getModel();
        table_mod.addRow(new Object[]{fio, number,GPA});
    }

    private void find() throws StudentNotFoundException {
        String search_val = JOptionPane.showInputDialog("Введите ФИО для поиска:");
        for(int i = 0; i < students_arr.size(); i++){
            if(students_arr.get(i).getFio().equals(search_val)){
                JOptionPane.showMessageDialog(this, "Результат: "+
                        students_arr.get(i).toString());
                return;
            }
        }
        throw new StudentNotFoundException(search_val, this);
    }

    private void remove() {
        int cnt = table.getSelectedRowCount();
        if(cnt != 1) {
            JOptionPane.showMessageDialog(this, "Необходимо выбрать строку для удаления");
            return;
        }
        cnt = table.getSelectedRow();
        students_arr.remove(cnt);
        DefaultTableModel table_mod = (DefaultTableModel) table.getModel();
        table_mod.removeRow(cnt);

    }
}

package Task17;

public class Proverka extends Exception{
    public Proverka(String fio){
        super("ИНН "+fio+" не верный");
    }
}

package Task17;

public class Student {
    private int iDNumber;
    private String fio;
    private double GPA;
    public Student(String fio,int iDNumber, double GPA) {
        this.iDNumber = iDNumber;
        this.fio = fio;
        this.GPA = GPA;
    }
    @Override
    public String toString() {
        return fio +
                " (iDNumber: " + iDNumber +
                ", GPA: " + GPA + ")" ;
    }
    public int getiDNumber() {
        return iDNumber;
    }
    public void setiDNumber(int iDNumber) {
        this.iDNumber = iDNumber;
    }
    public String getFio() {
        return fio;
    }
    public void setFio(String fio) {
        this.fio = fio;
    }
    public double getGPA() {
        return GPA;
    }
    public void setGPA(double GPA) {
        this.GPA = GPA;
    }
}

package Task17;

import javax.swing.*;

public class StudentNotFoundException extends Throwable {
    public StudentNotFoundException(String fio, LabClassUI t) {
        JOptionPane.showMessageDialog(t, "Студент " + fio + " не найден");
    }
}