Method toLowerCase

output/java_guava/1.4.13/Ascii.java:445–460

Returns a copy of the input string in which all plain #isUpperCase(char) uppercase ASCII characters have been converted to lowercase. All other characters are copied without modification.

(String string)

   */

    public static String toLowerCase(String string) {
    int length = string.length();
    for (int i = 0; i < length; i++) {
        if (isUpperCase(string.charAt(i))) {
                                                        char[] chars = string.toCharArray();
                                                        for (; i < length; i++) {
                                         char c = chars[i];
                                         if (isUpperCase(c)) {
                                                            chars[i] = (char) (c ^ 0x20);
                                         }
                                                        }
                                                        return String.valueOf(chars);
        }
    }
    return string;
    }

  /**
   * Returns a copy of the input character sequence in which all {@linkplain #isUpperCase(char)