Option to ignore case with .contains method?

private boolean containsIgnoreCase(List<String> list, String soughtFor) {
    for (String current : list) {
        if (current.equalsIgnoreCase(soughtFor)) {
            return true;
        }
    }
    return false;
}

I'm guessing you mean ignoring case when searching in a string?

I don't know any, but you could try to convert the string to search into either to lower or to upper case, then search.

// s is the String to search into, and seq the sequence you are searching for.
bool doesContain = s.toLowerCase().contains(seq);

Edit: As Ryan Schipper suggested, you can also (and probably would be better off) do seq.toLowerCase(), depending on your situation.

If you're using Java 8

List<String> list = new ArrayList<>();

boolean containsSearchStr = list.stream().anyMatch("search_value"::equalsIgnoreCase);