Check if string contains \n Java

Question

How do I check if string contains \\n or new line character ?

word.contains(\"\\\\n\")
word.contains(\"\\n\")

Answer 1

I'd rather trust JDK over System property. Following is a working snippet.

    private boolean checkIfStringContainsNewLineCharacters(String str){
        if(!StringUtils.isEmpty(str)){
            Scanner scanner = new Scanner(str);
            scanner.nextLine();
            boolean hasNextLine =  scanner.hasNextLine();
            scanner.close();
            return hasNextLine;
        }
        return false;
    }