a class is the instructions to build an object. The object is in memory and used at runtime. When you create an object, the class is used to build it. a class is a type of objects, an object is an actual instantiation of that type just in case it's not clear a class is just something that describes an object. The compiler will use it to make an object. It's just a description. so an object is like DNA and a class is like the ribosomes that construct the proteins from aminoacids wich are blueprints from our genes ? More like an object is like a bike and a class is like the blueprints for that bike. struct integer { int value; }; integer x = 0; the class "integer" describes what all instances of it look like, namely they have a value. "x" is an instance of integer with a specific value of 0. you can create infinite number of instances of "integer" and all of them follow the same description but can have independent values. h class einaikati afhrhmeno poy perigrafei PWS symperiferontai ta objects poy anhkoyn SE AYTHN _www_ ara eksorismoy exoyme MIA CLASS kai ayth perigrafei TA OBJECTS _www_ as poyme pws exoyme thn class anthrwpos _www_ ayth perigrafei pws leitoyrgei enas organismos as poyme _www_ PERIGRAFEI loipon pws yparxei mia metablhth poy legetai ypsos _www_ mia allh poy legetai baros _www_ pws OTAN parei ena object ths a spoyme toses thermides thn hmera katanalwnei toses klp _www_ TA OBJECTS twra poy anhkoyn se ayth thn class EXOYN ayta ta xarakthristika _www_ ayto san prwth proseggish, katanohto? Agiofws More like an object is like a bike and a class is like the blueprints for that bike _www_ ti akribws den katalabes? _www_ poly swsta _www_ to object einai ena SYGKRIMENO podhlato Agiofws ara to object einai ENA _www_ --> to object einai ena SYGKRIMENO podhlato <--- _www_ ara exoyme POLLA objects (osa kai podhlata ston kosmo) Agiofws kai TA classes pou perigrafoun to podilato xromoa ipsos mikso einai pola _www_ oxi paidaki moy, diabase ligo prosektika ayat poy eipa Agiofws :) _www_ :) _www_ na sto deiksw as poyme sxetiak me top podhlato poy eipes, ok? Agiofws kk Agiofws otan kanis ena blue print diniourgeite automata kialo object ? _www_ katarxhn ksekiname apo to bluprint, dhladh apo THN PERIGRAFH THS CLASS _www_ oxi, akoyse me prosektika, tha anafwrthw se ola _www_ --> katarxhn ksekiname apo to bluprint, dhladh apo THN PERIGRAFH THS CLASS _www_ class bike { _www_ int color; _www_ int inmovement; _www_ bike::bike(int col) _www_ { _www_ color = col; _www_ inmovement = false; Agiofws to object den prpei na exei dimiourgithei prin apo to class ? _www_ } _www_ OXI Agiofws ok _www_ tah me afhseis na teleiwsw ? _www_ :)) Agiofws nai nai se akouw _www_ to object dhmioyrgeitai BASIZOMENO se mai YPARXOYSA class _www_ as meinoyme mexri edw _www_ ayth einaih class bike _www_ exei mesa ths 2 eswterikes metablhthes gai na kratane to xrwma toy podhlaoty kai to an kineitai 'h oxi, ok? Agiofws kk _www_ h function bike::bike poy blepeis einai o constructr, dhladh h function poy tah klhthei OTAN KATASKEYASTEI ena object poy anhkei se ayth thn class _www_ opote sto main mas prog tah exyme as poyme gia an dhmioyrghsoyme 2 PODHLATA (2 objects) tis ejhs entoles: _www_ bike bike_of_giannhs(blue); _www_ bike bike_of_iwanna(red); _www_ ara exoyme DYO objects poy ftiaxthkan me bash toy TI PERIGFAREI h class bike pws einai ena podhlato Agiofws auta einai sto global meros tou src code ? _www_ to ena einai kokkino kai to allo blue _www_ yeap _www_ sto main a spoyme _www_ sto main as spoyme _www_ einai ston ektelesimo kwdika _www_ enw h class einai sto tmhma twn dhlwsewn _www_ san ennoies ta katalabes? ayto exei shmasia arxika _www_ tis leptomereies tha tis deis analoga me to se poia glwssa anaferesai klp klp Agiofws nai psilokatalaba _www_ oi ennoeis omws einai PANTOY idies _www_ okk Agiofws alla Agiofws me berdepse pws boris na exeis blueprint prin akoma kataskeuaseis to object _www_ blueprint metafrase yto sta ellhnika san ODHGIES Agiofws bah pio poli san photocopy einai _www_ dhladh OTAN einai na kataskeyastei ena object oi odhgies aytes mas lene pws na to ftiajoyme _www_ kai epishs mas lene pws tah symperiferetai apo kei kai meta _www_ opws se boleyai na to thymasai :)