Delete everything after part of a string

Question

I have a string that is built out of three parts. The word I want the string to be (changes), a seperating part (doesn\'t change) and the last part which changes. I want to

Answer 1

Clean way to safely remove until a string, and keep the searched part if token may or may not exist.

String input = "Stack Overflow - A place to ask stuff";
String token = " - ";
String result = input.contains(token)
  ? token + StringUtils.substringBefore(string, token)
  : input;
// Returns "Stack Overflow - "

Apache StringUtils functions are null-, empty-, and no match- safe