public static String byteToHexString ( final byte [ ] bytes , final int start , final int end ) { if ( bytes == null ) { throw new IllegalArgumentException ( "bytes == null" ) ; } int length = end - start ; char [ ] out = new char [ length * 2 ] ; for ( int i = start , j = 0 ; i < end ; i ++ ) { out [ j ++ ] = HEX_CHARS [ ( 0xF0 & bytes [ i ] ) >>> 4 ] ; out [ j ++ ] = HEX_CHARS [ 0x0F & bytes [ i ] ] ; } return new String ( out ) ; }
Given an array of bytes it will convert the bytes to a hex string representation of the bytes .