Convert single char in String to lower case

Question

I like to \'guess\' attribute names from getter methods. So \'getSomeAttribute\' shall be converted to \'someAttribute\'.

Usually I do something like

Answer 1

uncapitalize from commons lang would do it:

String attributeName = StringUtils.uncapitalize(methodName.substring(3));

I need commons lang a lot, but if you don't like that extra jar, you could copy the method. As you can see in it, they doin' it like you:

public static String uncapitalize(String str) {
    int strLen;
    if (str == null || (strLen = str.length()) == 0) {
        return str;
    }
    return new StringBuffer(strLen)
        .append(Character.toLowerCase(str.charAt(0)))
        .append(str.substring(1))
        .toString();
}