package com.edfmedia;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import javax.swing.JFrame;
import javax.swing.JPanel;


class DrawCircle extends JPanel{

    class Raza {
        int value = 50;

        public int getValue() {
            return value;
        }

        public void setValue(int value) {
            this.value = value;
        }

        public void add(int value) {
            this.value += value;
        }
    }

    private Raza raza = new Raza();

    public DrawCircle() {
//        setBackground(Color.green);
        setOpaque(true);
        final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
        scheduler.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                if (raza.getValue() < 100) {
                    raza.add(5);
                    repaint();
                }
            }
        }, 0, 1, TimeUnit.SECONDS);

    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        g.setColor(new Color(0, 255,0));
        g.drawOval(100, 100, 2 * raza.getValue(), 2 * raza.getValue());
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(100, 100);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setPreferredSize(new Dimension(400, 400));
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.add(new DrawCircle(), BorderLayout.CENTER);

        frame.pack();
        frame.setVisible(true);
    }
}