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12th June 2008 18:28 #1
Âúïðîñ îòíîñíî java.util.Comparator compare.
Ìîæå ëè íÿêîé äà ìè îáÿñíè êàê ñå ïîëçâà òîÿ ìåòîä compare. Îïèòâàõ ñå äà èìïîðòíà java.util.* ili java.util.Comparator , íî íÿìàì äîñòúï äî ìåòîäà.. Ðîâèõ èç íåòà, ÷åòîõ ðúêîâîäñòâîòî, íî òàì ïèøå äèðåêòíî äà ïîëçâàì compare((Object)key,(Object)key1) . equals ðàáîòè áåç ïðîáëåìè, íî íå ìè âúðøè ðàáîòà. Âúïðîñúò ìè ìîæå äà å ãëóïàâ, íî íÿìàì íèêàêâà èäåÿ çàùî íå ñòàâà... Àêî ìîæå íÿêîé äà äàäå åäèí ïðîñò ïðèìåð, ùå ñå ðàäâàì ìíîãî !
Last edited by aphex; 12th June 2008 at 18:37.
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12th June 2008 20:50 #2Registered User
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12th June 2008 22:14 #3Çåâçåê Ïðîâîêàòîð
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Comparator å èíòåðôåéñ.  íåãî íÿìà íèêàêúâ êîä. Ìåòîäà ìó òðÿáâà ïúðâî äà ãî íàïèøåø â ñâîé êëàñ êîéòî "implements Comparator". Ñ íåãî ñðàâíÿâàø ïî êàêúâòî èñêàø ïðèçíàê èëè ÷åñòî ãî äàâàø êàòî ïàðàìåòúð íà äðóã ìåòîä äà ñðàâíÿâà òîé, öåëòà å ïàê äà ñòàâà êàêòî òè èñêàø.
http://java.sun.com/j2se/1.5.0/docs/api/
 1.5 äîðè å òèïèçèðàí - ìîæåø äà ñìåíèø ñðàâíÿâàíèÿ òèï äà å ðàçëè÷åí îò Object.
http://java.sun.com/j2se/1.5.0/docs/...omparator.htmlLast edited by vvvlado; 12th June 2008 at 22:20.
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12th June 2008 23:14 #4
Áëàãîäàðÿ âè! Ñëåä êàòî âèäÿõ êàê å îñúùåñòâåíî â ïðèìåðà ìè ñòàíà ÿñíî. Àç ìèñëåõ, ÷å å íåùî ïîäîáíî íà equals.
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