Trying to write out a binary file

Question

I have found that using the Dataoutputstream is the way to read the file but writing I can't seem to get. Below is the code. It is writing out some data but not all is accurate is there anyother way to copy exactly what is in one file to another by just renaming??
DataInputStream brL = new DataInputStream(new FileInputStream(LogFile));
          DataInputStream brE = new DataInputStream(new FileInputStream(ECGFile));
          DataInputStream brS = new DataInputStream(new FileInputStream(SpeechFile));
          DataInputStream brH = new DataInputStream(new FileInputStream(HistoryFile));
DataOutputStream bwL = new DataOutputStream(new FileOutputStream("c:\\Projects\\FirstSupport\\LOG_data.out"));
          DataOutputStream bwE = new DataOutputStream(new FileOutputStream("c:\\Projects\\FirstSupport\\ECG_data.out"));
          DataOutputStream bwS = new DataOutputStream(new FileOutputStream("c:\\Projects\\FirstSupport\\SPEECH_data.out"));
          DataOutputStream bwH = new DataOutputStream(new FileOutputStream("c:\\Projects\\FirstSupport\\HISTORY_data.out"));
          System.out.println("Starting to copy files");
          try{
          int c = -1;
          while((c = brL.read()) != -1){
               bwL.write(c);
          while((c = brE.read()) != -1){
               bwE.write(c);
          while((c = brS.read()) != -1){
               bwS.write(c);
          while((c = brL.read()) != -1){
               bwH.write(c);
     }

Answer 1

use a FileInputStream and a FileOutputStream. You don't need to use the DataInput and OutputStreams. You can use a byte array to store the contents of the file and then write the contents of the byte array to a file.
try{
    FileInputStream f = new FileInputStream("myFile.dat");
    byte[] contents = new byte[f.available()];
    f.read(contents);
    FileOutputStream o = new FileOutputStream("myFile.new");
    o.write(contents);
    f.close();
    o.close();
catch(IOException ioe){
    ioe.printStackTrace();