}

        return value;
    }
    static final char[] HEXCHARS = {
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
    };
    public static String bin_to_hex(int value, int length) {
        char[] arr = new char[length];
        int ai = arr.length;
        while (ai-- > 0) {
            arr[ai] = HEXCHARS[value & 0xF];
            value >>>= 4;
        }

        return value;
    }

    static final char[] HEXCHARS = {
        '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
    };


    private static String bin_to_hex ( int value, int length ) {
        char[] arr = new char[length];
        int ai = arr.length;
        while ( ai-- > 0 ) {
            arr[ ai ] = HEXCHARS[ value & 0xF ];
            value >>>= 4;
        }