41
c. run! = run!
17. Regular exercise
Regular exercise and low fat diet
33
18. a. 45
b. we will drive across
42
Chapter 8
2. a. currentBalance
b. 91
3. a. This declaration is correct.
b. Array size must be positive. A correct answer is: int testScores[10];
4. a. Valid
b. Invalid. The data type should be string.
6. a. int alpha[50];
b. for (int i = 0; i < 50; i++)
alpha[i] = -1;
43
g. cout << alpha[49] << endl;
h. for (int i = 0; i < 50; i++)
{
cout << alpha[i] << ” “;
if ( (i + 1) % 15)
cout << endl;
}
cout << endl;
i. for (int i = 0; i < 50; i = i + 2)
alpha[i] = alpha[i] + 1;
j. int diffAlpha[49];
for (int i = 0; i < 49; i++)
diffAlpha[i] = alpha[i] – alpha[i – 1];
Size of diffAlpha is 49.
7. 0.00 1.50 9.00 28.50 66.00
57.00 1.50 30.00 28.50 66.00
8. 0 2 6 12 0 2 8 9
9. 1 2 2 4 8 32 224 6944
10. 2.50 2.50 5.00 15.00 30.00 75.00
11. int myList[10];
12.
int intList[5];
13. If array index is less than 0 or greater than arraySize – 1, we say that the array index is out-of
14. The output of the code is:
points[2] and points[3] are out of order.
44
<< “] are out of order.” << endl;
15. a. double heights[10] = {5.2, 6.3, 5.8, 4.9, 5.2, 5.7, 6.7, 7.1, 5.10, 6.0};
b. int weights[7] = {120, 125, 137, 140, 150, 180, 210};
or
d. string seasons[4] = {“fall“, “winter“, “spring“, “summer“};
16. a. Valid. The size of list is 4.
b. Valid. The size of x is 10.
17. alpha[0] = 3, alpha [1] = 12, alpha [2] = -25, alpha [3] = 72,
18. a. for (int i = 0; i < 6; i++)
20. alpha: 1 3 5 7 9 -1 2 5 8 11
21. a. Correct.
22. a. Valid.
45
23. 1 35700.00 714.00
24.
int cars[10];
int sum = 0;
int maxIndex;
25. list: 810 0 270 180 90
26.
Quantity Unit Cost Amount
3 15.00 45.00
2 5.00 10.00
1 75.00 75.00
Total due: $254.00
27. 1 3.50 10.70 235.31
2 7.20 6.50 294.05
4 9.80 10.50 646.54
28. The base address of the array.
46
29. No.
30. List before the first iteration: 12, 50, 68, 30, 46, 5, 92, 10, 38
List after the first iteration: 5, 50, 68, 30, 46, 12, 92, 10, 38
List after the second iteration: 5, 10, 68, 30, 46, 12, 92, 50, 38
32. Cindy Blair
34. a. Invalid; the assignment operator is not defined for C-strings.
b. Valid
35. a. Valid
36. a. Yes
37. a. strcpy(myStr, “Summer Vacation”);
38. a. Valid
47
d. Invalid; the assignment operator is not defined for C-strings.
e. Invalid; the relational and assignment operators are not defined for C-strings.
f. Valid
g. Valid
h. Valid
39. double matrix[4][3] = {{2.5, 3.2, 6.0}, {5.5, 7.5, 12.6},
40. a. for (int i = 0; i < 3; i++)
41. a. 30
b. 5
42. a. int alpha[10][20];
b. for (int j = 0; j < 10; j++)
c.
f.
}
43. a. beta is initialized to 0.
b. First row of beta: 0 1 2
Second row of beta: 1 2 3
Third row of beta: 2 3 4
44.
int flowers[28][10];
int animals[15][10];
int trees[100][10];
int inventory[30][10];
b.
void sumRow(int list[][10], int rowSize)
{
int sum;
for (int i = 0; i < rowSize; i++)
{
sum = 0;
}
void print(int list[][10], int rowSize)
{
for (int i = 0; i < rowSize; i++)
{
for (int j = 0; i < 10; j++)
cout << list [i][j] << ” “;
cout << endl;
}
}
Chapter 9
2. struct computerType
{
string manufacturer;
};
3. computerType newComputer;
newComputer.manufacturer = “Computer Corporation“;
4. a. houseType oldHouse, newHouse;
b. oldHouse.style = “Two-Story“;
oldHouse.numOfBedrooms = 5;
5. if (firstHouse.style == secondHouse.style &&
firstHouse.price == secondHouse.price)
6. struct fruitType
{
string name;
};
7. fruitType fruit;
fruit.name = “banana”;
51
fruit.fat = 1;
fruit.sugar = 15;
fruit.carbohydrate = 22;
8. a. void getFruitInput(fruitType& fruit)
{
<< “Color: ” << fruit.color
<< “Fat: ” << fruit.fat
10. a. Valid
b. Valid
c. Invalid; classList[1].name is a struct variable of type nameType while student is a
struct variable of type studentType, mismatch data types;
11. a. classList[0].name.first = “Jessica“;
classList[0].name.last = “Miller”;
12. a course.name = “Programming I“;
course.callNum = 13452;
course.credits = 3;
52
13. a. Invalid; the member name of newEmployee is a struct. Specify the member names to store the
value “John Smith”. For example,
newEmployee.name.first = “John”;
14. a. newEmployee.name.first = “Mickey”;
newEmployee.name.last = “Doe”;
newEmployee.pID = 111111111;
15. sportsType soccer[20];
struct sportsType
16. a. for (int j = 0; j < 20; j++)
{
soccer [i].sportName = “”;
soccer [i].teamName = “”;
17. a. void getData(sportsType & sp)
{
b. void printData(sportsType sp)
{
cout << “Sport Name: ” << sp[i].sportName << endl;
cout << “Team Name: ” << sp[i].teamName << endl;
18. a. tourType destination;
b. destination.cityName = “Chicago”;
destination.distance = 550;
destination.travelTime.hr = 9;
destination.travelTime.min = 30;
54
return dest;
}
e. void getData(tourType& dest)
{
cin >> dest.cityName;
cin >> dest.distance;
cin >> dest.travelTime.hr >> dest.travelTime.min;
}
55
Chapter 10
2. In Line 4, the name of the constructor is misspelled. Line 4 should be:
3. A constructor has no type. The statements in Line 6 should be:
syntaxErrors2(int = 0,
4. A class is not a function. The function isEqual must have a return type. Because the second
parameter of the constructor is a default parameter, the first parameter must be a default
5. The function set must have a return type. A constructor cannot be constant. Replace : after } with ;.
The statements in Lines 4, 6, and 12 should be:
6.
a. 16
b. 6
c. 2
d. 7
void setFat(double f);
double getFat() const;
void setSugar(int s);
int getSugar() const;
7.
a.
void foodType::set(string s, int c, double f, int su,
double cr, double p)
{
name = s;
else
sugar = 0;
if (cr >= 0)
carbohydrate = cr;
else
}
cout << “Fat: ” << fat << endl;
cout << “Sugar: ” << sugar << endl;
cout << “Carbohydrate: ” << carbohydrate << endl;
cout << “potassium: ” << potassium << endl;
}
c.
}
double foodType::getPotassium() const
{
return potassium;
}
d.
foodType::foodType()
{
set(“”, 0, 0.0, 0, 0.0, 0.0);
}
f.
fruit2.print();
g.
foodType myFruit(“Apple “, 52, 0.2, 10, 13.8, 148.0);
8.
a. i. Line 4
ii. Line 7
iii. Line 6
iv. Line 5
{
productName = “”;
id = “”;
manufacturer = “”;
if (x >= 0)
quantitiesInStock = x;
}
d.
productType::productType(string s, int x, double y, double z)
{
productName = “”;
id = s;
manufacturer = “”;
59
quantitiesInStock = 0;
if (y >= 0.0)
price = y;
else
price = 0.0;
if (z >= 0.0)
discount = z;
else
discount = 0.0;
}
e.
productType::productType(string n, string pID, string m,
else
price = 0.0;
if (z >= 0.0)
discount = z;
else
}
9. The functions print, getQuantitiesInStock, getPrice, and getDiscount are
10.
a.
void productType::set(string n, string pID, string m,
int x, double y, double z)
{
productName = n;
60
price = 0.0;
if (z >= 0.0)
discount = z;
else
discount = 0.0;
}
b.
void productType::print() const
}
c.
void productType::setQuantitiesInStock(int x)
{
if (x >= 0)
}
d.
void productType::updateQuantitiesInStock(int x)
e.
int productType::getQuantitiesInStock() const
f.
void productType::setPrice(double x)
g.
double productType::getPrice() const