JavaApplication8

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package javaapplication8;

import java.io.*;
import java.awt.image.*;
import static java.lang.System.arraycopy;
import java.util.*;
import javax.imageio.*;

class JavaApplication8 {

    static int pointer = 0;

    public static void main(String... args) throws IOException {
        String extension = "";
        try (FileOutputStream fos = new FileOutputStream("test.bin")) {
            File file;
            File[] files = new File("./").listFiles();

            for (File filec : files) {
                if (filec.isDirectory()) {
                    System.out.println("Directory: " + filec.getName());

                } else {
                    System.out.println("File: " + filec.getName());
                    int i = filec.getName().lastIndexOf('.');
                    if (i > 0) {
                        extension = filec.getName().substring(i + 1);
                    }
                    System.out.printf(extension);
                    if (extension.equals("BMP") || extension.equals("bmp")) {

                        file = new File(filec.getName());
                        BufferedImage bimage = ImageIO.read(file);
                        int[] line = new int[bimage.getWidth()];
                        for (int x = 0; x < bimage.getHeight(); x++) {

                            //System.out.printf("%d ", x);
                            bimage.getRGB(0, x, bimage.getWidth(), 1, line, 0, 0);
                            for (int y = 0; y < bimage.getWidth(); y++) {
                                fos.write((byte) line[y]);
                            }
                        }//}

                        System.out.printf("loaded %dx%d pixel image%n",
                                bimage.getWidth(),
                                bimage.getHeight());
                    }
                }
                extension = "";
            }
            fos.close();
        }

    }

}