Teach Yourself Borland C++ in 14 Days - portal

Day 3
Day 4
Answers to Quiz Questions
1. A pointer is a variable that holds the address of another variable or an object in
memory.
2. To de-reference a pointer means to get the value of the variable that the pointer
points to and not the value of the pointer itself (which is just a memory location).
3. The memory address where the newly created object resides.
4. Usually classes and structures should be passed by reference to eliminate unnecessary
overhead.
5. The const keyword prevents a variable from being modified.
6. No. Overloaded functions must vary by the type and number of parameters. These
two functions vary only by return type.
7. It depends on the situation. No one situation is best every time. This is a trick
question.
8. A class member function is a function that belongs to a class.
9. The compiler will place the entire contents of the inline function in the compiled
code each time the inline function is encountered in the source code. In the case of
a regular function, the function exists in the compiled code only once, and the
compiler places a call to the function each time the function is encountered in the
source code.
10. The function should use the delete[] form of operator delete:
delete[] buff;
1. In C++ a structure is simply a class in which all data members and functions have
public access by default. Aside from that, there is no difference.
2. Private data members protect data from being modified directly by users of the
class. Private data members can be modified through public member functions but
not directly.
3. By using getters and setters, which are public member functions that can be called
to change the value of a private data member.
4. The destructor is called when the object is destroyed. For local objects this will
occur when the object goes out of scope. For dynamically allocated objects this will
occur when the object is deleted.
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