Untitled

import javax.swing.*;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;

public class Facultate2 extends JFrame implements ActionListener {

    private JTextField nr1;
    private JTextField nr2;
    private JButton btn;
    private JPanel panel;
    private final int dist = 40;
    private int w = 0;
    private int h = 0;

    public Facultate2(){
        panel = new JPanel();
        panel.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(panel);
        panel.setLayout(null);

        setTitle("Facultate");
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        setBounds(100, 100, 500, 700);

        nr1 = new JTextField("");
        nr1.setBounds(20, 100, 400, 30);
        panel.add(nr1);

        nr2 = new JTextField("");
        nr2.setBounds(20, 120 + dist, 400, 30);
        panel.add(nr2);

        btn = new JButton("Draw");
        btn.setBounds(20, 200, 400, 30);
        panel.add(btn);
        btn.addActionListener(this);

        this.setVisible(true);
    }

    public void paint(Graphics g){
        Graphics2D g2 = (Graphics2D) g;
        g2.draw(new Ellipse2D.Double(20, 350,
                w,
                h));
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Object source = e.getSource();

        if (source == btn){
            int w = Integer.parseInt(nr1.getText());
            int h = Integer.parseInt(nr2.getText());

            System.out.println(h + " " + w);

            if (h < 5 || h > 150 || w < 5 || w > 150)
                System.out.println("Bad values!");

            if (h == w) {
                try {
                    BufferedWriter out = new BufferedWriter(new FileWriter("out.txt", true));
                    out.write(h + " " + w);
                    out.close();
                } catch (IOException ioException) {
                    ioException.printStackTrace();
                }
            }

            repaint();
        }
    }

    public static void main(String[] args) {
        Facultate2 f = new Facultate2();
    }
}