Question 1. What is the output of the following C++ code? int alpha[5] = {2, 4,

Question

Question 1. What is the output of the following C++ code?

int alpha[5] = {2, 4, 6, 8, 10};
int j;
for (j = 4; j >= 0; j--)
      cout << "alpha[" << j<< "] = " << alpha[j] << endl;

       2 4 6 8 10
       4 3 2 1 0
       8 6 4 2 0
       10 8 6 4 2

Question 2. Assume you have the following declaration.

char nameList[100];

Which of the following ranges is valid for the index of the array nameList?

       0 through 99
       0 through 100
       1 through 100
       1 through 101

Question 3. A class and its members can be described graphically by using _____.

       Unified Modeling Language (UML) notation
       a flowchart
       Unified Abstract Language (UAL) notation
       Unified Encapsulation Language (UEL) notation

Question 4. If a member of a class is ____, you cannot access it outside the class.

       public
       automatic
       private
       static

Question 5. Consider the following class definition.

class rectangleType
{
public:
    void setLengthWidth(double x, double y);
    //Postcondition: length = x; width = y;
    void print() const;
    //Output length and width;
    double area();
    //Calculate and return the area of the rectangle;
    double perimeter();
    //Calculate and return the parameter;
    rectangleType();
    //Postcondition: length = 0; width = 0;
    rectangleType(double x, double y);
    //Postcondition: length = x; width = y;
private:
    double length;
    double width;
};

And consider this object declaration.

rectangleType bigRect(14,10);

Which of the following statements is correct?

       bigRect.setLengthWidth();
       bigRect.setLengthWidth(3.0, 2.0);
       bigRect.length = 2.0;
       bigRect.length = bigRect.width;

Question 6. In C++, the ____ is an operator called the member access operator.

       .
       ,
       ::
       #

Question 7. A ____ sign in front of a member name on the UML diagram indicates that the member is a private member.

       +
       -
       #
       $

Question 8. Suppose you have the following UML class diagram of a class.
----------------------------------------------------------------------------------------------

                                    clockType

-----------------------------------------------------------------------------------------------

-hours: int

-minutes: int

-seconds: int

-----------------------------------------------------------------------------------------------

-incrementHours{} : void

+equalTime{} : bool

+printTime{} : void

+clockType{}

+-clockType{}

+getTime{} : int

+setTime(in setHours : int, in setMinutes : int, in setSeconds : int) : bool

------------------------------------------------------------------------------------------------

According to the UML class diagram, which function is public and doesn't return anything?

       incrementHours
       equalTime
       printTime
       setTime

Question 9. Consider the following declaration.

class myClass
{
public:
    void print();
private:
    int x;
};
myClass myObject;

Which statement is legal?

       myObject.print = 10;
       myClass.print = 10;
       myObject.print();
       myClass.print();

Question 10. When composition is used, _____.

       the host object is constructed first, and then the member objects are placed into it
       member objects are constructed first, in the order they appear in the host constructor's initializer list
       member objects are constructed first, in the order they are declared in their own class
       member objects are constructed last, in the order they are declared in the host's class

Question 11. Composition and inheritance are two fundamental ways of relating _____.

       classes
       objects
       class function members
       class data members

Question 12. Aggregation is also sometimes called _____.

       inheritance
       instantiation
       composition
       encapsulation

Question 13. A(n) _____ relationship represents composition.

       "has a"
       "is a"
       "part of"
       logical

Question 14. If the derived class does not override a public member function of the base class, you may specify a call to that public member function that has parameters by _____.

       using the name of the function and no parameter list
       using only the name of the function
       using the name of the function and the appropriate parameter list
       Public member functions cannot be accessed in a derived class.

Question 15. The new classes that we create from the existing classes are called ____ classes.

       sibling
       base
       derived
       parent

Question 16. Which of the following statements does not correctly describe inheritance?

       Going from a general description to a more specific description
       Describes an "is a" relationship
       Describes a "has a" relationship
       Allows for reusable code

Question 2. Assume you have the following declaration.

char nameList[100];

Which of the following ranges is valid for the index of the array nameList?

       0 through 99
       0 through 100
       1 through 100
       1 through 101

Explanation / Answer

1. D) 10 8 6 4 2

2. A) 0 through 99

3. C) Unified Abstract Language (UAL) notation

4. C) private

5. B) bigRect.setLengthWidth(3.0, 2.0);

6. A) "."

7. B) -

8. C) printTime

9. D) myClass.print();

10. D) member objects are constructed last, in the order they are declared in the host's class

11. A) classes

12. C) composition

13. A) "has a"

14. C) using the name of the function and the appropriate parameter list

15. C) derived

16. A) Going from a general description to a more specific description

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.