month.html

jfreechart1。0。2的api。

<FONT color="green">348</FONT>         * Parses the string argument as a month.<a name="line.348"></a>
<FONT color="green">349</FONT>         * &lt;P&gt;<a name="line.349"></a>
<FONT color="green">350</FONT>         * This method is required to accept the format "YYYY-MM".  It will also<a name="line.350"></a>
<FONT color="green">351</FONT>         * accept "MM-YYYY". Anything else, at the moment, is a bonus.<a name="line.351"></a>
<FONT color="green">352</FONT>         *<a name="line.352"></a>
<FONT color="green">353</FONT>         * @param s  the string to parse.<a name="line.353"></a>
<FONT color="green">354</FONT>         *<a name="line.354"></a>
<FONT color="green">355</FONT>         * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the month <a name="line.355"></a>
<FONT color="green">356</FONT>         *         otherwise.<a name="line.356"></a>
<FONT color="green">357</FONT>         */<a name="line.357"></a>
<FONT color="green">358</FONT>        public static Month parseMonth(String s) {<a name="line.358"></a>
<FONT color="green">359</FONT>    <a name="line.359"></a>
<FONT color="green">360</FONT>            Month result = null;<a name="line.360"></a>
<FONT color="green">361</FONT>            if (s != null) {<a name="line.361"></a>
<FONT color="green">362</FONT>    <a name="line.362"></a>
<FONT color="green">363</FONT>                // trim whitespace from either end of the string<a name="line.363"></a>
<FONT color="green">364</FONT>                s = s.trim();<a name="line.364"></a>
<FONT color="green">365</FONT>    <a name="line.365"></a>
<FONT color="green">366</FONT>                int i = Month.findSeparator(s);<a name="line.366"></a>
<FONT color="green">367</FONT>                if (i != -1) {<a name="line.367"></a>
<FONT color="green">368</FONT>                    String s1 = s.substring(0, i).trim();<a name="line.368"></a>
<FONT color="green">369</FONT>                    String s2 = s.substring(i + 1, s.length()).trim();<a name="line.369"></a>
<FONT color="green">370</FONT>    <a name="line.370"></a>
<FONT color="green">371</FONT>                    Year year = Month.evaluateAsYear(s1);<a name="line.371"></a>
<FONT color="green">372</FONT>                    int month;<a name="line.372"></a>
<FONT color="green">373</FONT>                    if (year != null) {<a name="line.373"></a>
<FONT color="green">374</FONT>                        month = SerialDate.stringToMonthCode(s2);<a name="line.374"></a>
<FONT color="green">375</FONT>                        if (month == -1) {<a name="line.375"></a>
<FONT color="green">376</FONT>                            throw new TimePeriodFormatException(<a name="line.376"></a>
<FONT color="green">377</FONT>                                "Can't evaluate the month."<a name="line.377"></a>
<FONT color="green">378</FONT>                            );<a name="line.378"></a>
<FONT color="green">379</FONT>                        }<a name="line.379"></a>
<FONT color="green">380</FONT>                        result = new Month(month, year);<a name="line.380"></a>
<FONT color="green">381</FONT>                    }<a name="line.381"></a>
<FONT color="green">382</FONT>                    else {<a name="line.382"></a>
<FONT color="green">383</FONT>                        year = Month.evaluateAsYear(s2);<a name="line.383"></a>
<FONT color="green">384</FONT>                        if (year != null) {<a name="line.384"></a>
<FONT color="green">385</FONT>                            month = SerialDate.stringToMonthCode(s1);<a name="line.385"></a>
<FONT color="green">386</FONT>                            if (month == -1) {<a name="line.386"></a>
<FONT color="green">387</FONT>                                throw new TimePeriodFormatException(<a name="line.387"></a>
<FONT color="green">388</FONT>                                    "Can't evaluate the month."<a name="line.388"></a>
<FONT color="green">389</FONT>                                );<a name="line.389"></a>
<FONT color="green">390</FONT>                            }<a name="line.390"></a>
<FONT color="green">391</FONT>                            result = new Month(month, year);<a name="line.391"></a>
<FONT color="green">392</FONT>                        }<a name="line.392"></a>
<FONT color="green">393</FONT>                        else {<a name="line.393"></a>
<FONT color="green">394</FONT>                            throw new TimePeriodFormatException(<a name="line.394"></a>
<FONT color="green">395</FONT>                                "Can't evaluate the year."<a name="line.395"></a>
<FONT color="green">396</FONT>                            );<a name="line.396"></a>
<FONT color="green">397</FONT>                        }<a name="line.397"></a>
<FONT color="green">398</FONT>                    }<a name="line.398"></a>
<FONT color="green">399</FONT>    <a name="line.399"></a>
<FONT color="green">400</FONT>                }<a name="line.400"></a>
<FONT color="green">401</FONT>                else {<a name="line.401"></a>
<FONT color="green">402</FONT>                    throw new TimePeriodFormatException(<a name="line.402"></a>
<FONT color="green">403</FONT>                        "Could not find separator."<a name="line.403"></a>
<FONT color="green">404</FONT>                    );<a name="line.404"></a>
<FONT color="green">405</FONT>                }<a name="line.405"></a>
<FONT color="green">406</FONT>    <a name="line.406"></a>
<FONT color="green">407</FONT>            }<a name="line.407"></a>
<FONT color="green">408</FONT>            return result;<a name="line.408"></a>
<FONT color="green">409</FONT>    <a name="line.409"></a>
<FONT color="green">410</FONT>        }<a name="line.410"></a>
<FONT color="green">411</FONT>    <a name="line.411"></a>
<FONT color="green">412</FONT>        /**<a name="line.412"></a>
<FONT color="green">413</FONT>         * Finds the first occurrence of ' ', '-', ',' or '.'<a name="line.413"></a>
<FONT color="green">414</FONT>         *<a name="line.414"></a>
<FONT color="green">415</FONT>         * @param s  the string to parse.<a name="line.415"></a>
<FONT color="green">416</FONT>         * <a name="line.416"></a>
<FONT color="green">417</FONT>         * @return &lt;code&gt;-1&lt;/code&gt; if none of the characters where found, the<a name="line.417"></a>
<FONT color="green">418</FONT>         *      position of the first occurence otherwise.<a name="line.418"></a>
<FONT color="green">419</FONT>         */<a name="line.419"></a>
<FONT color="green">420</FONT>        private static int findSeparator(String s) {<a name="line.420"></a>
<FONT color="green">421</FONT>    <a name="line.421"></a>
<FONT color="green">422</FONT>            int result = s.indexOf('-');<a name="line.422"></a>
<FONT color="green">423</FONT>            if (result == -1) {<a name="line.423"></a>
<FONT color="green">424</FONT>                result = s.indexOf(',');<a name="line.424"></a>
<FONT color="green">425</FONT>            }<a name="line.425"></a>
<FONT color="green">426</FONT>            if (result == -1) {<a name="line.426"></a>
<FONT color="green">427</FONT>                result = s.indexOf(' ');<a name="line.427"></a>
<FONT color="green">428</FONT>            }<a name="line.428"></a>
<FONT color="green">429</FONT>            if (result == -1) {<a name="line.429"></a>
<FONT color="green">430</FONT>                result = s.indexOf('.');<a name="line.430"></a>
<FONT color="green">431</FONT>            }<a name="line.431"></a>
<FONT color="green">432</FONT>            return result;<a name="line.432"></a>
<FONT color="green">433</FONT>        }<a name="line.433"></a>
<FONT color="green">434</FONT>    <a name="line.434"></a>
<FONT color="green">435</FONT>        /**<a name="line.435"></a>
<FONT color="green">436</FONT>         * Creates a year from a string, or returns null (format exceptions <a name="line.436"></a>
<FONT color="green">437</FONT>         * suppressed).<a name="line.437"></a>
<FONT color="green">438</FONT>         *<a name="line.438"></a>
<FONT color="green">439</FONT>         * @param s  the string to parse.<a name="line.439"></a>
<FONT color="green">440</FONT>         *<a name="line.440"></a>
<FONT color="green">441</FONT>         * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the year <a name="line.441"></a>
<FONT color="green">442</FONT>         *         otherwise.<a name="line.442"></a>
<FONT color="green">443</FONT>         */<a name="line.443"></a>
<FONT color="green">444</FONT>        private static Year evaluateAsYear(String s) {<a name="line.444"></a>
<FONT color="green">445</FONT>    <a name="line.445"></a>
<FONT color="green">446</FONT>            Year result = null;<a name="line.446"></a>
<FONT color="green">447</FONT>            try {<a name="line.447"></a>
<FONT color="green">448</FONT>                result = Year.parseYear(s);<a name="line.448"></a>
<FONT color="green">449</FONT>            }<a name="line.449"></a>
<FONT color="green">450</FONT>            catch (TimePeriodFormatException e) {<a name="line.450"></a>
<FONT color="green">451</FONT>                // suppress<a name="line.451"></a>
<FONT color="green">452</FONT>            }<a name="line.452"></a>
<FONT color="green">453</FONT>            return result;<a name="line.453"></a>
<FONT color="green">454</FONT>    <a name="line.454"></a>
<FONT color="green">455</FONT>        }<a name="line.455"></a>
<FONT color="green">456</FONT>    <a name="line.456"></a>
<FONT color="green">457</FONT>    }<a name="line.457"></a>




























































</PRE>
</BODY>
</HTML>