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<p>Nu ma refeream la Int tipul fundamental</p>
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<p>Cristi</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Georgiana Diana <geodiana93@gmail.com><br>
<b>Sent:</b> Wednesday, December 2, 2015 1:42 PM<br>
<b>To:</b> Maxim Domentii; Compilatoare<br>
<b>Cc:</b> Marius-Cristian E?EANU<br>
<b>Subject:</b> Re: [cpl] Răspuns: Răspuns: [CPL][Tema2] Mostenire</font>
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<div dir="ltr">Din manualul de LCPL:
<div>"Numele unei clase este public vizibil in tot programul, nu exista ierarhii de module. Prin urmare, este o eroare sa aveti doua clase cu acelasi nume (nu puteti redefini o clasa)."</div>
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<div>Nu poti redefini Int.</div>
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<div>Oricum, Marius nu cred ca la Int tipul fundamental se refera in exemplele lui. In teste apar exemple cu int (cu i mic) si cred ca la acel int se refera.</div>
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<div class="gmail_quote">2015-12-02 13:30 GMT+02:00 Maxim Domentii via cpl <span dir="ltr">
<<a href="mailto:cpl@cursuri.cs.pub.ro" target="_blank">cpl@cursuri.cs.pub.ro</a>></span>:<br>
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<div>Salut,</div>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">Daca am :</span><br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">class Int inherits IntModel ....</span><br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">Care dintre urmatoarele situatii vor genera erori ?</span><br>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">1. Int x = new IntModel<br>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><br>
</span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">Aceasta situatie va genera o erroare
intrucat nu poti instantia cu un tip de baza o variabila declarata de un tip derivat.</span><br>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><br>
</span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">2.
IntModel y = new Int</span><br>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><br>
</span></span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">Aceasta
este situatia care a fost deja lamurita in discutia la care am facut referire si nu va genera o eroare.</span><br>
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<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><br>
</span></span></span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">3.
Int x</span><br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"> IntModel y</span><br style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px">
<span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"> if ( x == y )</span><br>
</span></span></span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px"><br>
</span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">Din manualul de lcpl eu inteleg ca operatorul
== poate fi folosit pentru a compara doi operanzi de tip:</span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">- Int (intregii fundamentali din lcpl)</span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">- un intreg si un String</span></span></div>
<div dir="ltr"><span style="font-family:'Helvetica Neue','Segoe UI',Helvetica,Arial,'Lucida Grande',sans-serif; font-size:13px"><span style="font-family:'Courier New',courier,monaco,monospace,sans-serif; font-size:16px">- oricare doua obiecte (toate celelalte
clase din lcpl deriva din Object).</span></span></div>
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<div dir="ltr">In cazul de fata, cum IntModel probabil este o clasa derivata din Object (ca toate clasele din lcpl, mai putin intregii) si Int deriva din IntModel, probabil se face o comparatie valida intre doi operanzi care refera obiecte diferite si va intoarce
valoarea 0 (false).</div>
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<div dir="ltr">Dar in acest caz probabil ar trebui sa existe o alta discutie. Se poate defini o clasa cu acelasi nume ca si a unui timp de date fundamental din lcpl? Se poate redefini tipul Int? </div>
<div dir="ltr">Sau poate nu inteleg eu foarte bine specificatiile lcpl, daca sunt complete (in manual se precizeaza despre Int doar ca "intregii sunt un alt tip fundamental; Int nu este o clasa derivata din Object").</div>
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<div dir="ltr">Max</div>
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<div dir="ltr"><font color="#0000ff"><b>Georgiana Diana Ciocirdel</b></font>
<div>Polytechnic University of Bucharest,</div>
<div>Computer Science</div>
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