Binary Project

Question

Hello,
I am a collge student taking a DF class where we are working on a project for a Department of Defence Challange where I need to get inside a wav file and get hidden information from it. Im to the point where I need a means of getting the LSB (Least Sugnificant Bit) from the files Hex values and thought of using Java as a means of doing this, as Java is the only language I currently know. It is my hope that I can find someone here who would be willing to allow me to use or help me in writing this program, I will give full credit to anyone who helps and if their work is helpful in solving this problem than that credit will be passed off to the DoD as the reason for solving it.
At the moment I need something that will take in the wav file and get me the LSB for each hex byte or will take the Hex bytes themselves as a text file.
I need the out put to be in a string of bits so that I can look this over.
for exmple, I need to get the 00000001 and the 00000001 to print out 11 and so forth for the whole file.
If anyone is able or willing to help my team and myself would be very greatful to the help provided.
Thanks in advance.

Answer 1

man, sorry my bad english
to output your file, or whatever you got, :
public static void main(String[] args) throws Exception {
          byte[] b = "YOUR FILE".getBytes();
          System.out.println(byteArrayToBinary(b));
          System.out.println(byteArrayToHex(b));
          System.out.println(byteArrayToInt(b));
     public static String byteArrayToBinary(byte[] b) {
         StringBuffer sb = new StringBuffer();
         for (int i = 0; i < b.length; i++)
              sb.append(Integer.toBinaryString(b&255) + " ");
     return sb.toString();
     public static String byteArrayToHex(byte[] b) {
     StringBuffer sb = new StringBuffer();
     for (int i = 0; i < b.length; i++)
          sb.append(Integer.toHexString(b[i]&255) + " ");
     return sb.toString();
     public static String byteArrayToInt(byte[] b) {
     StringBuffer sb = new StringBuffer();
     for (int i = 0; i < b.length; i++)
          sb.append((b[i]&255) + " ");
     return sb.toString();
To see if the byte has the least bit significant:
public static boolean lastBitSig(byte b) {
          return (b&0x01) == 1;
     }Did I help ?
cause I'm not understing what you expecting, hehehe
sorry.