Method fromString

output/java_guava/1.4.17/HashCode.java:358–368

Creates a HashCode from a hexadecimal (base 16) encoded string. The string must be at least 2 characters long, and contain only valid, lower-cased hexadecimal characters. This method accepts the exact format generated by #toString. If you require more lenient {@code base

(String string)

  public static HashCode fromString(String string) {
    checkArgument(string.length() >= 2, "input string (%s) must have at least 2 characters", string);
    checkArgument(string.length() % 2 == 0, "input string (%s) must have an even number of characters", string);
    byte[] bytes = new byte[string.length() / 2];
    for (int i = 0; i < string.length(); i += 2) {
      int ch1 = decode(string.charAt(i)) << 4;
      int ch2 = decode(string.charAt(i + 1));
      bytes[i / 2] = (byte) (ch1 + ch2);
    }
    return fromBytesNoCopy(bytes);
  }

  private static int decode(char ch) {
    if (ch >= '0' && ch <= '9') {