The next few questions deal with the class definition (.h file) shown below. The

Question

The next few questions deal with the class definition (.h file) shown below. The class Blockbuster represents a popular Hollywood movie.

#include <string>
using namespace std;
namespace cs52 {

class Blockbuster{
public:

Blockbuster( int length, string title, string star );

friend bool equal( const Blockbuster & b1, const Blockbuster & b2 );
int getLength();
string getTitle();
string getPlace();

void setTitle( string title );
void setPlace( string place );
void setLength( int length );

private:

int my_Length; // feature length in minutes
string my_Title; // feature title
string my_Star; // leading actor or actress

};

}

Which of the following statements is a valid way to create a Blockbuster object?

Select one:

a. std::Blockbuster b( 100, "Rambo" );

b. std::Blockbuster b( 100, "Rambo", "Sylvester Stallone" );

c. cs52::Blockbuster b;

d. cs52::Blockbuster b( 100, "Rambo", "Sylvester Stallone" );

Which of the following parts of your program have access to the member variable my_Title directly without calling a method?

Select one:

a. Driver code like void main() {...}

b. Only methods within the class Blockbuster itself

c. Methods within classes other than Blockbuster

d. All of the above choices have access to the variable my_Title directly without calling a method

Based on the Blockbuster class shown above, can the friend function equal() be marked const?

Select one:

a. Not enough information has been provided to answer this question

b. No

c. It depends on exactly what the method equal does

d. Yes

Sally the Programmer intends to write a method body of the getter method:

string Blockbuster::getTitle( )

Which of the following would be the correct implementation?

Select one:

a. return( my_Title );

b. title = my_Title;

c. myTitle( );

d. my_Title = title;

Suppose you decide to overload the == operator in the class Blockbuster. What is the valid function declaration for the operator == that belongs in the class implementation (.cpp) file shown above?

Select one:

a. operator ==(const Blockbuster & b1, const Blockbuster & b2)

b. bool operator ==(const Blockbuster & b1 )

c. bool operator Blockbuster::==(const Blockbuster & b1, const Blockbuster & b2)

d. bool operator ==(const Blockbuster & b1, const Blockbuster & b2)

Explanation / Answer

Q: Which of the following statements is a valid way to create a Blockbuster object?

Ans: d. cs52::Blockbuster b( 100, "Rambo", "Sylvester Stallone" );

namespace followed by class name then object name then set of parenthesis

Q: Which of the following parts of your program have access to the member variable my_Title directly without calling a method?

Ans: b. Only methods within the class Blockbuster itself

because private members can only be accessed by the member functions of the respective class.

Q: Based on the Blockbuster class shown above, can the friend function equal() be marked const?

Ans: d. Yes

Q: Sally the Programmer intends to write a method body of the getter method:

string Blockbuster::getTitle( ). Which of the following would be the correct implementation?

Ans: d. my_Title = title;

Q: Suppose you decide to overload the == operator in the class Blockbuster. What is the valid function declaration for the operator == that belongs in the class implementation (.cpp) file shown above?

A: d. bool operator ==(const Blockbuster & b1, const Blockbuster & b2)

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