hour.html

jfreechart1。0。2的api。

<FONT color="green">320</FONT>            return true;<a name="line.320"></a>
<FONT color="green">321</FONT>        }<a name="line.321"></a>
<FONT color="green">322</FONT>    <a name="line.322"></a>
<FONT color="green">323</FONT>        /**<a name="line.323"></a>
<FONT color="green">324</FONT>         * Returns a hash code for this object instance.  The approach described by <a name="line.324"></a>
<FONT color="green">325</FONT>         * Joshua Bloch in "Effective Java" has been used here:<a name="line.325"></a>
<FONT color="green">326</FONT>         * &lt;p&gt;<a name="line.326"></a>
<FONT color="green">327</FONT>         * &lt;code&gt;http://developer.java.sun.com/developer/Books/effectivejava<a name="line.327"></a>
<FONT color="green">328</FONT>         * /Chapter3.pdf&lt;/code&gt;<a name="line.328"></a>
<FONT color="green">329</FONT>         * <a name="line.329"></a>
<FONT color="green">330</FONT>         * @return A hash code.<a name="line.330"></a>
<FONT color="green">331</FONT>         */<a name="line.331"></a>
<FONT color="green">332</FONT>        public int hashCode() {<a name="line.332"></a>
<FONT color="green">333</FONT>            int result = 17;<a name="line.333"></a>
<FONT color="green">334</FONT>            result = 37 * result + this.hour;<a name="line.334"></a>
<FONT color="green">335</FONT>            result = 37 * result + this.day.hashCode();<a name="line.335"></a>
<FONT color="green">336</FONT>            return result;<a name="line.336"></a>
<FONT color="green">337</FONT>        }<a name="line.337"></a>
<FONT color="green">338</FONT>    <a name="line.338"></a>
<FONT color="green">339</FONT>        /**<a name="line.339"></a>
<FONT color="green">340</FONT>         * Returns an integer indicating the order of this Hour object relative to<a name="line.340"></a>
<FONT color="green">341</FONT>         * the specified object:<a name="line.341"></a>
<FONT color="green">342</FONT>         *<a name="line.342"></a>
<FONT color="green">343</FONT>         * negative == before, zero == same, positive == after.<a name="line.343"></a>
<FONT color="green">344</FONT>         *<a name="line.344"></a>
<FONT color="green">345</FONT>         * @param o1  the object to compare.<a name="line.345"></a>
<FONT color="green">346</FONT>         *<a name="line.346"></a>
<FONT color="green">347</FONT>         * @return negative == before, zero == same, positive == after.<a name="line.347"></a>
<FONT color="green">348</FONT>         */<a name="line.348"></a>
<FONT color="green">349</FONT>        public int compareTo(Object o1) {<a name="line.349"></a>
<FONT color="green">350</FONT>    <a name="line.350"></a>
<FONT color="green">351</FONT>            int result;<a name="line.351"></a>
<FONT color="green">352</FONT>    <a name="line.352"></a>
<FONT color="green">353</FONT>            // CASE 1 : Comparing to another Hour object<a name="line.353"></a>
<FONT color="green">354</FONT>            // -----------------------------------------<a name="line.354"></a>
<FONT color="green">355</FONT>            if (o1 instanceof Hour) {<a name="line.355"></a>
<FONT color="green">356</FONT>                Hour h = (Hour) o1;<a name="line.356"></a>
<FONT color="green">357</FONT>                result = getDay().compareTo(h.getDay());<a name="line.357"></a>
<FONT color="green">358</FONT>                if (result == 0) {<a name="line.358"></a>
<FONT color="green">359</FONT>                    result = this.hour - h.getHour();<a name="line.359"></a>
<FONT color="green">360</FONT>                }<a name="line.360"></a>
<FONT color="green">361</FONT>            }<a name="line.361"></a>
<FONT color="green">362</FONT>    <a name="line.362"></a>
<FONT color="green">363</FONT>            // CASE 2 : Comparing to another TimePeriod object<a name="line.363"></a>
<FONT color="green">364</FONT>            // -----------------------------------------------<a name="line.364"></a>
<FONT color="green">365</FONT>            else if (o1 instanceof RegularTimePeriod) {<a name="line.365"></a>
<FONT color="green">366</FONT>                // more difficult case - evaluate later...<a name="line.366"></a>
<FONT color="green">367</FONT>                result = 0;<a name="line.367"></a>
<FONT color="green">368</FONT>            }<a name="line.368"></a>
<FONT color="green">369</FONT>    <a name="line.369"></a>
<FONT color="green">370</FONT>            // CASE 3 : Comparing to a non-TimePeriod object<a name="line.370"></a>
<FONT color="green">371</FONT>            // ---------------------------------------------<a name="line.371"></a>
<FONT color="green">372</FONT>            else {<a name="line.372"></a>
<FONT color="green">373</FONT>                // consider time periods to be ordered after general objects<a name="line.373"></a>
<FONT color="green">374</FONT>                result = 1;<a name="line.374"></a>
<FONT color="green">375</FONT>            }<a name="line.375"></a>
<FONT color="green">376</FONT>    <a name="line.376"></a>
<FONT color="green">377</FONT>            return result;<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>    <a name="line.380"></a>
<FONT color="green">381</FONT>        /**<a name="line.381"></a>
<FONT color="green">382</FONT>         * Creates an Hour instance by parsing a string.  The string is assumed to<a name="line.382"></a>
<FONT color="green">383</FONT>         * be in the format "YYYY-MM-DD HH", perhaps with leading or trailing<a name="line.383"></a>
<FONT color="green">384</FONT>         * whitespace.<a name="line.384"></a>
<FONT color="green">385</FONT>         *<a name="line.385"></a>
<FONT color="green">386</FONT>         * @param s  the hour string to parse.<a name="line.386"></a>
<FONT color="green">387</FONT>         *<a name="line.387"></a>
<FONT color="green">388</FONT>         * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the hour <a name="line.388"></a>
<FONT color="green">389</FONT>         *         otherwise.<a name="line.389"></a>
<FONT color="green">390</FONT>         */<a name="line.390"></a>
<FONT color="green">391</FONT>        public static Hour parseHour(String s) {<a name="line.391"></a>
<FONT color="green">392</FONT>    <a name="line.392"></a>
<FONT color="green">393</FONT>            Hour result = null;<a name="line.393"></a>
<FONT color="green">394</FONT>            s = s.trim();<a name="line.394"></a>
<FONT color="green">395</FONT>    <a name="line.395"></a>
<FONT color="green">396</FONT>            String daystr = s.substring(0, Math.min(10, s.length()));<a name="line.396"></a>
<FONT color="green">397</FONT>            Day day = Day.parseDay(daystr);<a name="line.397"></a>
<FONT color="green">398</FONT>            if (day != null) {<a name="line.398"></a>
<FONT color="green">399</FONT>                String hourstr = s.substring(<a name="line.399"></a>
<FONT color="green">400</FONT>                    Math.min(daystr.length() + 1, s.length()), s.length()<a name="line.400"></a>
<FONT color="green">401</FONT>                );<a name="line.401"></a>
<FONT color="green">402</FONT>                hourstr = hourstr.trim();<a name="line.402"></a>
<FONT color="green">403</FONT>                int hour = Integer.parseInt(hourstr);<a name="line.403"></a>
<FONT color="green">404</FONT>                // if the hour is 0 - 23 then create an hour<a name="line.404"></a>
<FONT color="green">405</FONT>                if ((hour &gt;= FIRST_HOUR_IN_DAY) &amp;&amp; (hour &lt;= LAST_HOUR_IN_DAY)) {<a name="line.405"></a>
<FONT color="green">406</FONT>                    result = new Hour(hour, day);<a name="line.406"></a>
<FONT color="green">407</FONT>                }<a name="line.407"></a>
<FONT color="green">408</FONT>            }<a name="line.408"></a>
<FONT color="green">409</FONT>    <a name="line.409"></a>
<FONT color="green">410</FONT>            return result;<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>    <a name="line.413"></a>
<FONT color="green">414</FONT>    }<a name="line.414"></a>




























































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