public static String removeDoubleQuotes(String string) {
        return string != null ? string.replace("\"", "") : null;
    }
@Test
    void removeDoubleQuotesWhenStrEmpty() {
        String text = "Some text";

        assertEquals("", Numeric.removeDoubleQuotes(""));
        assertEquals(" ", Numeric.removeDoubleQuotes(" "));
        assertEquals(text, Numeric.removeDoubleQuotes(text));
    }