* <p>The <i>presence</i> of a thousand separator character in the format string specifies that
* the <u>locale-specific</u> thousand separator (if any) is inserted separating thousand groups.</p>
* <p>By default, "," is expected as the thousand separator, and "." is expected as the decimal separator.</p>
* <p>The <i>presence</i> of a thousand separator character in the format string specifies that
* the <u>locale-specific</u> thousand separator (if any) is inserted separating thousand groups.</p>
* <p>By default, "," is expected as the thousand separator, and "." is expected as the decimal separator.</p>