GAme

package circular.motion;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import static java.awt.event.KeyEvent.VK_SPACE;
import java.awt.event.KeyListener;
import static java.lang.Thread.sleep;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class CircularMotion extends JPanel implements KeyListener, ActionListener{
    double cx = 180;
    double cy = 150;
    double posx1 = 200, posy1 = 300, posx2 = 200, posy2 = 250;
    double rad = 70;
    double angle1 = 90;
    double angle2 = 270;

    private void moveBall1() {
        posx1 = cx + rad * Math.cos(angle1 * ((Math.PI)/180));
        posy1 = cy + rad * Math.sin(angle1 * ((Math.PI)/180));
        angle1++;

    }
    private void moveBall2() {
        posx2 = cx + rad * Math.cos(angle2 * ((Math.PI)/180));
        posy2 = cy + rad * Math.sin(angle2 * ((Math.PI)/180));
        angle2++;
    }
    @Override
    public void paint(Graphics g) {
        super.paint(g);
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setColor(Color.RED);
        g2d.fillOval((int)posx1, (int)posy1, 30, 30);//Circle 1

        g2d.setColor(Color.BLUE);
        g2d.fillOval((int)posx2, (int)posy2 , 30, 30);
    }
    static CircularMotion game;
    public static void main(String[] args) throws InterruptedException {
        JFrame frame = new JFrame("Circular Motion");
        game = new CircularMotion();
        frame.add(game);
        frame.setSize(400,400);
        frame.setVisible(true);
        frame.setResizable(false);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        int cnt = 0;
        //game.control();
    }

    public void control() throws InterruptedException {
        int cnt = 0;
        while(cnt <= 180) {
            moveBall1();
            moveBall2();
            repaint();
            Thread.sleep(5);
            cnt++;
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {}

    @Override
    public void keyPressed(KeyEvent e) {
        if(e.getKeyCode() == KeyEvent.VK_SPACE) {
            try {
                game.control();
            } catch (InterruptedException ex) {
                Logger.getLogger(CircularMotion.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {}

    @Override
    public void actionPerformed(ActionEvent e) {}

}