C++ questions classes inh poly etc do all

1. How may a constructor b ovrloadd? Choos all that apply

a. Typ of paramtrs

b. Ordr of paramtr typs

c. Rturn typ

d. By nam

2. Considr th statmnt blow. Which of th Big-Fiv functions will b usd in this cas?

Car mustangCar = gtCarFromFactory(Mustang); // gtCarFromFactory rturns a Car objct

3. xplain your rational for choosing th answr you did for #2 abov

4. Is it possibl to hav mor than on dstructor in a class? Why or why not?

5. If a class objct is dynamically allocatd in mmory, dos its constructor xcut? If so, whn?

6. Mmbrs of a class objct may b accssd through a pointr to th objct by using th _________ oprator.

7. Giv th statmnt to call function lookUpInfo and pass it a vry larg objct of typ objHumongous. Th function mrly looks at th information and rturns a string valu. B fficint, and guard against any changs to th data you pass to th function.

8. Whn a mmbr functions body is writtn insid a class dclaration, th function is ________________.

9. Find all rrors in th following class:

class Circl: {

privat

doubl cntrX;

doubl cntrY;

doubl radius;

public stCntr(doubl, doubl);

stRadius(doubl);

}

10. (7 pts) How can th compilr dtrmin if a constructor is a copy constructor?

11. (3 pts) What is th this pointr?

12. (3pts) A(n) __________ is a spcial constructor, calld whn a nw objct is initializd with anothr objcts data.

13. (9 pts) List th thr cass whr a copy constructor is invokd implicitly.

14. Considr th following dfinition for class Assmbly :

class Assmbly {

public:

int valu;

};

and th variabl ptr_a is dclard and initializd as such:

Assmbly *ptr_a = nw Assmbly;

Us th dot oprator ( . ) to assign 5 to th valu fild of th objct to which ptr_a points.

Us th arrow oprator ( -> ) to assign 23 to th valu fild of th objct to which ptr_a points.

15. Tru or fals: Th compilr will gnrat a dfault dstructor if on if not dfind xplicitly.

16. Assum you hav an lvalu namd nwItm, which is a vry larg objct. Giv th statmnt to assign nwItm to xisting objct of th sam typ calld oldItm, via a mov assignmnt.

17. Giv th rang for loop that invoks th rfill() function for all th GasPump objcts in a collction calld gasStation. Do not us th auto typ spcifir.