Android Open Source - bitcoin-wallet My Hex

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Back to project page bitcoin-wallet.

License

The source code is released under:

Copyright (C) 2011 by Caleb Anderson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the ...

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Java Source Code

package net.dirtyfilthy.bitcoin.util;
/*w  w w. j  a  v  a 2  s.  co  m*/
public class MyHex {
  
  public static StringBuilder encoded=new StringBuilder(200);
  public static final String HEX_DIGITS="0123456789ABCDEF";
  
  
  public static synchronized String encode(byte[] bytes)
      {
      
      encoded.setLength(0);
          int cBytes = bytes.length;
          int iByte = 0;
          int b;

          for (;;) {
                  b=bytes[iByte++] & 0xff;
                  encoded.append(HEX_DIGITS.charAt(b / 16));
                  encoded.append(HEX_DIGITS.charAt(b % 16));
                  if (iByte >= cBytes) {
                      return encoded.toString();
                  }
          } 
      }
  
  public static synchronized void encodeAppendStringBuilder(StringBuilder builder, byte[] bytes){
        int cBytes = bytes.length;
        int iByte = 0;
        int b;

        for (;;) {
                b=bytes[iByte++] & 0xff;
                builder.append(HEX_DIGITS.charAt(b / 16));
                builder.append(HEX_DIGITS.charAt(b % 16));
                if (iByte >= cBytes) {
                    return;
                }
        } 
    
  }
  
  public static synchronized String encodePadded(byte[] bytes, int length){
          encode(bytes);
            int numZeros = (length*2) - encoded.length();
            while(numZeros-- > 0) { 
                encoded.insert(0, "0");
            }
            return encoded.toString();
  }

}

Java Source Code List