year.html

jfreechart1。0。2的api。

<FONT color="green">195</FONT>         * Returns the last millisecond of the year, evaluated using the supplied<a name="line.195"></a>
<FONT color="green">196</FONT>         * calendar (which determines the time zone).<a name="line.196"></a>
<FONT color="green">197</FONT>         *<a name="line.197"></a>
<FONT color="green">198</FONT>         * @param calendar  the calendar.<a name="line.198"></a>
<FONT color="green">199</FONT>         *<a name="line.199"></a>
<FONT color="green">200</FONT>         * @return The last millisecond of the year.<a name="line.200"></a>
<FONT color="green">201</FONT>         */<a name="line.201"></a>
<FONT color="green">202</FONT>        public long getLastMillisecond(Calendar calendar) {<a name="line.202"></a>
<FONT color="green">203</FONT>            Day dec31 = new Day(31, MonthConstants.DECEMBER, this.year);<a name="line.203"></a>
<FONT color="green">204</FONT>            return dec31.getLastMillisecond(calendar);<a name="line.204"></a>
<FONT color="green">205</FONT>        }<a name="line.205"></a>
<FONT color="green">206</FONT>    <a name="line.206"></a>
<FONT color="green">207</FONT>        /**<a name="line.207"></a>
<FONT color="green">208</FONT>         * Tests the equality of this &lt;code&gt;Year&lt;/code&gt; object to an arbitrary <a name="line.208"></a>
<FONT color="green">209</FONT>         * object.  Returns &lt;code&gt;true&lt;/code&gt; if the target is a &lt;code&gt;Year&lt;/code&gt;<a name="line.209"></a>
<FONT color="green">210</FONT>         * instance representing the same year as this object.  In all other cases,<a name="line.210"></a>
<FONT color="green">211</FONT>         * returns &lt;code&gt;false&lt;/code&gt;.<a name="line.211"></a>
<FONT color="green">212</FONT>         *<a name="line.212"></a>
<FONT color="green">213</FONT>         * @param object  the object.<a name="line.213"></a>
<FONT color="green">214</FONT>         *<a name="line.214"></a>
<FONT color="green">215</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the year of this and the object are the <a name="line.215"></a>
<FONT color="green">216</FONT>         *         same.<a name="line.216"></a>
<FONT color="green">217</FONT>         */<a name="line.217"></a>
<FONT color="green">218</FONT>        public boolean equals(Object object) {<a name="line.218"></a>
<FONT color="green">219</FONT>            if (object != null) {<a name="line.219"></a>
<FONT color="green">220</FONT>                if (object instanceof Year) {<a name="line.220"></a>
<FONT color="green">221</FONT>                    Year target = (Year) object;<a name="line.221"></a>
<FONT color="green">222</FONT>                    return (this.year == target.getYear());<a name="line.222"></a>
<FONT color="green">223</FONT>                }<a name="line.223"></a>
<FONT color="green">224</FONT>                else {<a name="line.224"></a>
<FONT color="green">225</FONT>                    return false;<a name="line.225"></a>
<FONT color="green">226</FONT>                }<a name="line.226"></a>
<FONT color="green">227</FONT>            }<a name="line.227"></a>
<FONT color="green">228</FONT>            else {<a name="line.228"></a>
<FONT color="green">229</FONT>                return false;<a name="line.229"></a>
<FONT color="green">230</FONT>            }<a name="line.230"></a>
<FONT color="green">231</FONT>        }<a name="line.231"></a>
<FONT color="green">232</FONT>        <a name="line.232"></a>
<FONT color="green">233</FONT>        /**<a name="line.233"></a>
<FONT color="green">234</FONT>         * Returns a hash code for this object instance.  The approach described by<a name="line.234"></a>
<FONT color="green">235</FONT>         * Joshua Bloch in "Effective Java" has been used here:<a name="line.235"></a>
<FONT color="green">236</FONT>         * &lt;p&gt;<a name="line.236"></a>
<FONT color="green">237</FONT>         * &lt;code&gt;http://developer.java.sun.com/developer/Books/effectivejava<a name="line.237"></a>
<FONT color="green">238</FONT>         *     /Chapter3.pdf&lt;/code&gt;<a name="line.238"></a>
<FONT color="green">239</FONT>         * <a name="line.239"></a>
<FONT color="green">240</FONT>         * @return A hash code.<a name="line.240"></a>
<FONT color="green">241</FONT>         */<a name="line.241"></a>
<FONT color="green">242</FONT>        public int hashCode() {<a name="line.242"></a>
<FONT color="green">243</FONT>            int result = 17;<a name="line.243"></a>
<FONT color="green">244</FONT>            int c = this.year;<a name="line.244"></a>
<FONT color="green">245</FONT>            result = 37 * result + c;<a name="line.245"></a>
<FONT color="green">246</FONT>            return result;<a name="line.246"></a>
<FONT color="green">247</FONT>        }<a name="line.247"></a>
<FONT color="green">248</FONT>    <a name="line.248"></a>
<FONT color="green">249</FONT>        /**<a name="line.249"></a>
<FONT color="green">250</FONT>         * Returns an integer indicating the order of this &lt;code&gt;Year&lt;/code&gt; object<a name="line.250"></a>
<FONT color="green">251</FONT>         * relative to the specified object:<a name="line.251"></a>
<FONT color="green">252</FONT>         *<a name="line.252"></a>
<FONT color="green">253</FONT>         * negative == before, zero == same, positive == after.<a name="line.253"></a>
<FONT color="green">254</FONT>         *<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param o1  the object to compare.<a name="line.255"></a>
<FONT color="green">256</FONT>         *<a name="line.256"></a>
<FONT color="green">257</FONT>         * @return negative == before, zero == same, positive == after.<a name="line.257"></a>
<FONT color="green">258</FONT>         */<a name="line.258"></a>
<FONT color="green">259</FONT>        public int compareTo(Object o1) {<a name="line.259"></a>
<FONT color="green">260</FONT>    <a name="line.260"></a>
<FONT color="green">261</FONT>            int result;<a name="line.261"></a>
<FONT color="green">262</FONT>    <a name="line.262"></a>
<FONT color="green">263</FONT>            // CASE 1 : Comparing to another Year object<a name="line.263"></a>
<FONT color="green">264</FONT>            // -----------------------------------------<a name="line.264"></a>
<FONT color="green">265</FONT>            if (o1 instanceof Year) {<a name="line.265"></a>
<FONT color="green">266</FONT>                Year y = (Year) o1;<a name="line.266"></a>
<FONT color="green">267</FONT>                result = this.year - y.getYear();<a name="line.267"></a>
<FONT color="green">268</FONT>            }<a name="line.268"></a>
<FONT color="green">269</FONT>    <a name="line.269"></a>
<FONT color="green">270</FONT>            // CASE 2 : Comparing to another TimePeriod object<a name="line.270"></a>
<FONT color="green">271</FONT>            // -----------------------------------------------<a name="line.271"></a>
<FONT color="green">272</FONT>            else if (o1 instanceof RegularTimePeriod) {<a name="line.272"></a>
<FONT color="green">273</FONT>                // more difficult case - evaluate later...<a name="line.273"></a>
<FONT color="green">274</FONT>                result = 0;<a name="line.274"></a>
<FONT color="green">275</FONT>            }<a name="line.275"></a>
<FONT color="green">276</FONT>    <a name="line.276"></a>
<FONT color="green">277</FONT>            // CASE 3 : Comparing to a non-TimePeriod object<a name="line.277"></a>
<FONT color="green">278</FONT>            // ---------------------------------------------<a name="line.278"></a>
<FONT color="green">279</FONT>            else {<a name="line.279"></a>
<FONT color="green">280</FONT>                // consider time periods to be ordered after general objects<a name="line.280"></a>
<FONT color="green">281</FONT>                result = 1;<a name="line.281"></a>
<FONT color="green">282</FONT>            }<a name="line.282"></a>
<FONT color="green">283</FONT>    <a name="line.283"></a>
<FONT color="green">284</FONT>            return result;<a name="line.284"></a>
<FONT color="green">285</FONT>    <a name="line.285"></a>
<FONT color="green">286</FONT>        }<a name="line.286"></a>
<FONT color="green">287</FONT>    <a name="line.287"></a>
<FONT color="green">288</FONT>        /**<a name="line.288"></a>
<FONT color="green">289</FONT>         * Returns a string representing the year..<a name="line.289"></a>
<FONT color="green">290</FONT>         *<a name="line.290"></a>
<FONT color="green">291</FONT>         * @return A string representing the year.<a name="line.291"></a>
<FONT color="green">292</FONT>         */<a name="line.292"></a>
<FONT color="green">293</FONT>        public String toString() {<a name="line.293"></a>
<FONT color="green">294</FONT>            return Integer.toString(this.year);<a name="line.294"></a>
<FONT color="green">295</FONT>        }<a name="line.295"></a>
<FONT color="green">296</FONT>    <a name="line.296"></a>
<FONT color="green">297</FONT>        /**<a name="line.297"></a>
<FONT color="green">298</FONT>         * Parses the string argument as a year.<a name="line.298"></a>
<FONT color="green">299</FONT>         * &lt;P&gt;<a name="line.299"></a>
<FONT color="green">300</FONT>         * The string format is YYYY.<a name="line.300"></a>
<FONT color="green">301</FONT>         *<a name="line.301"></a>
<FONT color="green">302</FONT>         * @param s  a string representing the year.<a name="line.302"></a>
<FONT color="green">303</FONT>         *<a name="line.303"></a>
<FONT color="green">304</FONT>         * @return &lt;code&gt;null&lt;/code&gt; if the string is not parseable, the year <a name="line.304"></a>
<FONT color="green">305</FONT>         *         otherwise.<a name="line.305"></a>
<FONT color="green">306</FONT>         */<a name="line.306"></a>
<FONT color="green">307</FONT>        public static Year parseYear(String s) {<a name="line.307"></a>
<FONT color="green">308</FONT>    <a name="line.308"></a>
<FONT color="green">309</FONT>            // parse the string...<a name="line.309"></a>
<FONT color="green">310</FONT>            int y;<a name="line.310"></a>
<FONT color="green">311</FONT>            try {<a name="line.311"></a>
<FONT color="green">312</FONT>                y = Integer.parseInt(s.trim());<a name="line.312"></a>
<FONT color="green">313</FONT>            }<a name="line.313"></a>
<FONT color="green">314</FONT>            catch (NumberFormatException e) {<a name="line.314"></a>
<FONT color="green">315</FONT>                throw new TimePeriodFormatException("Cannot parse string.");<a name="line.315"></a>
<FONT color="green">316</FONT>            }<a name="line.316"></a>
<FONT color="green">317</FONT>    <a name="line.317"></a>
<FONT color="green">318</FONT>            // create the year...<a name="line.318"></a>
<FONT color="green">319</FONT>            try {<a name="line.319"></a>
<FONT color="green">320</FONT>                return new Year(y);<a name="line.320"></a>
<FONT color="green">321</FONT>            }<a name="line.321"></a>
<FONT color="green">322</FONT>            catch (IllegalArgumentException e) {<a name="line.322"></a>
<FONT color="green">323</FONT>                throw new TimePeriodFormatException("Year outside valid range.");<a name="line.323"></a>
<FONT color="green">324</FONT>            }<a name="line.324"></a>
<FONT color="green">325</FONT>        }<a name="line.325"></a>
<FONT color="green">326</FONT>    <a name="line.326"></a>
<FONT color="green">327</FONT>    }<a name="line.327"></a>




























































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