abstract class Strings {
/**
* Joins all the given strings to create a new string.
*/
static String join(List<String> strings, String separator) {
return StringImplementation.join(strings, separator);
}
/**
* Concatenates all the given strings to create a new string.
*/
static String concatAll(List<String> strings) {
return StringImplementation.concatAll(strings);
}
}