regex pattern to check if a string has unicode

Unicode.java

public class Unicode{
    public static boolean containsUnicode(String s){
        //you're welcome i did it for you :D
        Pattern p = Pattern.compile("[^a-z0-9~!@#$%^&*()_+-={}\\[\\]|:\";'<>?,./\\\\    ]", Pattern.CASE_INSENSITIVE);
        Matcher m = p.matcher(s);
        return m.find();
    }
}

made code cleaner/smaller