### Question:
StringUtil { public static String unquote(String quotedString) { return unescapeString(quotedString.substring(1, quotedString.length() - 1)); } private  StringUtil(); static String unquote(String quotedString); static String unescapeString(String escapedString); static List<Object> parseCSVLine(String line, String separatorRegex); static final String STRING_ESCAPE_SEQUENCE_REGEX; static final String QUOTED_STRING_REGEX; static final String SINGLEQUOTED_STRING_REGEX; static final String DOUBLE_REGEX; static final String DOUBLE_REGEX_WITH_NAN; }### Answer:
@Test public void unquoteString1() { assertThat(StringUtil.unquote("\"I said \\\"Hi\\\"\""), equalTo("I said \"Hi\"")); }