import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Iterator;
import java.awt.event.ActionEvent;

public class mainGUI {

	private JFrame frame;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					mainGUI window = new mainGUI();
					window.frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the application.
	 */
	public mainGUI() {
		initialize();
	}

	/**
	 * Initialize the contents of the frame.
	 */
	private void initialize() {
		ArrayList<Student> list = new ArrayList<>();
		frame = new JFrame();
		frame.setBounds(100, 100, 700, 300);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.getContentPane().setLayout(null);

		JTextArea fioArea = new JTextArea();
		fioArea.setBounds(6, 6, 95, 16);
		frame.getContentPane().add(fioArea);

		JTextArea countryArea = new JTextArea();
		countryArea.setBounds(6, 32, 95, 16);
		frame.getContentPane().add(countryArea);

		JTextArea yearArea = new JTextArea();
		yearArea.setBounds(6, 60, 95, 16);
		frame.getContentPane().add(yearArea);

		JTextArea weigthArea = new JTextArea();
		weigthArea.setBounds(6, 88, 95, 16);
		frame.getContentPane().add(weigthArea);

		JLabel label = new JLabel("ФИО");
		label.setBounds(113, 6, 61, 16);
		frame.getContentPane().add(label);

		JLabel label_1 = new JLabel("Страна");
		label_1.setBounds(113, 32, 61, 16);
		frame.getContentPane().add(label_1);

		JLabel label_2 = new JLabel("Год");
		label_2.setBounds(113, 60, 61, 16);
		frame.getContentPane().add(label_2);

		JLabel label_3 = new JLabel("Вес");
		label_3.setBounds(113, 88, 72, 16);
		frame.getContentPane().add(label_3);

		JButton addNewStudentButton = new JButton("Добавить спортсмена");
		addNewStudentButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				list.add(new Student(fioArea.getText(), countryArea.getText(), Integer.parseInt(yearArea.getText()), weigthArea.getText()));
			}
		});
		addNewStudentButton.setBounds(6, 141, 168, 29);
		frame.getContentPane().add(addNewStudentButton);


		JTextArea showArea = new JTextArea();
		showArea.setBounds(186, 6, 459, 203);
		frame.getContentPane().add(showArea);

		JButton showAllStudents = new JButton("Вывести спортсменов");
		showAllStudents.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				StringBuilder str = new StringBuilder();
				Iterator<Student> listIterator = list.iterator();
				while(listIterator.hasNext()){
					Student index = listIterator.next();
					str.append(index.FIO + " " + index.country + " " + index.weigth + " " + index.year + "\n");
				}
				showArea.setText(str.toString());

			}
		});
		showAllStudents.setBounds(6, 167, 168, 29);
		frame.getContentPane().add(showAllStudents);

		JButton showStudentsByGroup = new JButton("Показать по весу");
		showStudentsByGroup.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				StringBuilder str = new StringBuilder();
				Iterator<Student> listIterator = list.iterator();
				while(listIterator.hasNext()){
					Student index = listIterator.next();
					if(index.country.equals("Франция") && index.weigth.equals("Полусредний")){
					str.append(index.FIO + " " + index.year + " " + index.country + " " + "\n");
					}
				}
				showArea.setText(str.toString());
			}
		});
		showStudentsByGroup.setBounds(418, 211, 233, 29);
		frame.getContentPane().add(showStudentsByGroup);
	}
}

public class Student {
	public String FIO;
	public String country;
	public Integer year;
	public String weigth;

	public Student(String FIO, String country, Integer year, String weigth){
		this.FIO=FIO;
		this.country=country;
		this.year=year;
		this.weigth=weigth;
	}


}