import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class My_DICOM {

 static FileInputStream input;
 static byte[] b;
 public static void main(String[] args) {
  try {
   File file = new File("G:/zzz.dcm");
   input = new FileInputStream(file);
   b = new byte[(int) file.length()];
   input.read(b);
  } catch (FileNotFoundException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
  init();
 }
 public static void init(){
  System.out.println("b.length="+b.length);
  for (int i =0;i<10000;i++) {
    System.out.print(Integer.toHexString(b[i]));  
   if (i==15) {
    System.out.println();
   }else{
    System.out.print(", ");
   }
  }
 }
}

public static void init(){
  System.out.println("b.length="+b.length);
  for (int i =0;i<10000;i++) {
  if (b[i]<0) {
    int temp=b[i]+256;
    System.out.print(Integer.toHexString(temp));
   }else{
    System.out.print(Integer.toHexString(b[i]));
   }

   if (i==15) {
    System.out.println();
   }else{
    System.out.print(", ");
   }
  }
 }