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  1. #1
    Eclipse Plugin Developer aphex's Avatar
    Join Date: Mar:2003
    Location: Karlsruhe
    Posts: 546

    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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  2. #2
    Registered User
    Join Date: Aug:2006
    Location: Sofia
    Posts: 37

  3. #3
    Çåâçåê Ïðîâîêàòîð
    Join Date: Sep:2005
    Location: Sofia
    Posts: 18,517
    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.html
    Last edited by vvvlado; 12th June 2008 at 22:20.

  4. #4
    Eclipse Plugin Developer aphex's Avatar
    Join Date: Mar:2003
    Location: Karlsruhe
    Posts: 546
    Áëàãîäàðÿ âè! Ñëåä êàòî âèäÿõ êàê å îñúùåñòâåíî â ïðèìåðà ìè ñòàíà ÿñíî. Àç ìèñëåõ, ÷å å íåùî ïîäîáíî íà equals.
    We are drowning in information, but starving for knowledge and time!

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