task 5

import javax.swing.*;
import java.awt.*;

public class task5 
{
	public static void main(String[] args) 
	{
		JFrame f = new JFrame();
		InputPanel ip = new InputPanel();
		int res = JOptionPane.showConfirmDialog(f, ip, "Enter data",
			JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
		if (res == JOptionPane.OK_OPTION)
			System.exit(0);
		else System.exit(0);
	}
	static int fact(int e) 
	{
		if (e == 1) 
			return 1;
		else if (e == 2) 
			return 2;
		else 
			return fact(e - 1) * e;
	}
	static int fib(int r) 
	{
		if (r == 1 || r == 2 || r == 3) 
			return 1;
		return fib(r - 2) + fib(r - 1);
	}
	static class InputPanel extends JPanel 
	{
		public InputPanel() 
		{
			super(new GridBagLayout());
			String input = JOptionPane.showInputDialog("введите число n");
			int n = Integer.parseInt(input);
			int r = fib(n);
			int e = fact(n);
			JLabel lblFN = new JLabel("Факториал = ");
			JLabel lblLN = new JLabel("Производная = ");
			JLabel q = new JLabel(String.valueOf(e));
			JLabel y = new JLabel(String.valueOf(r));
			add(lblFN, new GridBagConstraints(0, 0, 1, 1, 0, 0, GridBagConstraints.WEST,
				GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 5), 0, 0));
			add(q, new GridBagConstraints(1, 0, 1, 1, 1, 0, GridBagConstraints.WEST,
				GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 0), 0, 0));

			add(lblLN, new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.WEST,
				GridBagConstraints.HORIZONTAL, new Insets(5, 0, 0, 5), 0, 0));
			add(y, new GridBagConstraints(1, 1, 1, 1, 1, 0, GridBagConstraints.WEST,
				GridBagConstraints.HORIZONTAL, new Insets(5, 0, 0, 0), 0, 0));
		}
	}
}