Java Image Border Effect

Java program to create and apply border effect to image.

Main.java

import javax.imageio.ImageIO;
import java.awt.*;
import java.io.File;

// 2018 TheFlyingKeyboard and released under MIT License 
// theflyingkeyboard.net
public class Main {
    public static void main(String[] args) {
        BorderEffect borderEffect = new BorderEffect(10, new Color(0, 0, 0));

        try {
            ImageIO.write(borderEffect.apply(ImageIO.read(new File("image.png"))),
                    "png", new File("Image with border.png"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

BorderEffect.java

import java.awt.*;
import java.awt.image.BufferedImage;

// 2018 TheFlyingKeyboard and released under MIT License
// theflyingkeyboard.net
public class BorderEffect {
    private final int borderSize;
    private final Color color;

    public BorderEffect(int borderSize, Color color) {
        this.borderSize = borderSize;
        this.color = color;
    }

    public BufferedImage apply(BufferedImage bufferedImage) {
        Graphics2D graphics2D = bufferedImage.createGraphics();
        graphics2D.setPaint(color);

        //Horizontal
        graphics2D.fillRect(0, 0, bufferedImage.getWidth(), borderSize);
        graphics2D.fillRect(0, bufferedImage.getHeight() - borderSize, bufferedImage.getWidth(), borderSize);

        //Vertical
        graphics2D.fillRect(0, 0, borderSize, bufferedImage.getHeight());
        graphics2D.fillRect(bufferedImage.getWidth() - borderSize, 0, borderSize, bufferedImage.getHeight());

        return bufferedImage;
    }
}