import java.io.IOException;
import java.awt.Color;
import java.awt.Point;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;

public class Test {
  public Test() throws IOException {
    BufferedImage image = ImageIO.read(new File("Unfilledcirc.png"));
    new FloodFill().floodFill(image, new Point(50, 50), Color.WHITE, Color.RED);
    ImageIO.write(image, "png", new File("output.png"));
  }

  public static void main(String[] args) throws IOException {
    new Test();
  }
}