Java: File to Hex?

Question

I have a file in Java

FileInputStream in = null;
try{    
in = new FileInputStream(\"C:\\\\pic.bmp\");
}catch{}

I want to convert pic.b

Answer 1

Java has an extensive image reading/writing and editing library. Look at the javax.imageio packages (here's the documentation). You would probably want to create a BufferedImage using ImageIO and then access the image data from the BufferedImage object (there are methods for that).

If you want a generic answer, for any type of binary data (not just images), then I guess you would have to read the contents of the file into a byte array. Something like this:

byte[] bytes = new byte[in.available()];
in.read(bytes);