Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
using namespace std;
cout << \ cout << \ << \ char ch; cin >> ch;
while (ch != 'c' && ch != 'p' && ch != 't' && ch != 'g') {
cout << \ cin >> ch; }
switch (ch) {
case 'c' : cout << \ break;
case 'p' : cout << \ break;
case 't' : cout << \ break;
case 'g' : cout << \ break;
default : cout << \ }
return 0; }
// pe6-5.cpp
// Neutronia taxation #include
const double LEV1 = 5000; const double LEV2 = 15000; const double LEV3 = 35000; const double RATE1 = 0.10; const double RATE2 = 0.15; const double RATE3 = 0.20; int main( ) {
using namespace std; double income; double tax;
cout << \ cin >> income;
if (income <= LEV1) tax = 0;
else if (income <= LEV2)
tax = (income - LEV1) * RATE1; else if (income <= LEV3)
tax = RATE1 * (LEV2 - LEV1) + RATE2 * (income - LEV2); else
tax = RATE1 * (LEV2 - LEV1) + RATE2 * (LEV3 - LEV2) + RATE3 * (income - LEV3);
cout << \
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Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
return 0; }
// pe6-7.cpp
#include
using namespace std; string word; char ch;
int vowel = 0;
int consonant = 0; int other = 0;
cout << \ cin >> word;
while ( word != \ {
ch = tolower(word[0]); if (isalpha(ch)) {
if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') vowel++; else
consonant++; } else
other++; cin >> word; }
cout << vowel <<\
cout << consonant << \ cout << other << \
return 0; }
// pe6-8.cpp -- counting characters #include
#include
using namespace std; char filename[SIZE]; char ch;
ifstream inFile; // object for handling file input
cout << \ cin.getline(filename, SIZE);
inFile.open(filename); // associate inFile with a file if (!inFile.is_open()) // failed to open file {
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Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
cout << \ cout << \ exit(EXIT_FAILURE); }
int count = 0; // number of items read
inFile >> ch; // get first value
while (inFile.good()) // while input good and not at EOF {
count++; // one more item read inFile >> ch; // get next value }
cout << count << \
inFile.close(); // finished with the file return 0; }
Chapter 7
//pe7-1.cpp -- harmonic mean
#include
double h_mean(double x, double y);
int main(void) {
using namespace std; double x,y;
cout << \ while (cin >> x >> y && x * y != 0)
cout << \ << y << \/* or do the reading and testing in two parts: while (cin >> x && x != 0) {
cin >> y; if (y == 0) break; ... */
cout << \ return 0; }
double h_mean(double x, double y) {
return 2.0 * x * y / (x + y); }
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Solutions for Programming Exercises in C++ Primer Plus, 5th Edition
// pe7-3.cpp
#include
struct box {
char maker[40]; float height; float width; float length; float volume; };
void showbox(box b); void setbox(box * pb);
int main(void) {
box carton = {\ setbox(&carton); showbox(carton); return 0; }
void showbox(box b) {
using namespace std;
cout << \ << \ << \ << \
<< \}
void setbox(box * pb) {
pb->volume = pb->height * pb->width * pb->length; }
// pe7-4.cpp -- probability of winning #include
long double probability(unsigned numbers, unsigned picks);
int main() {
using namespace std; double total, choices; double mtotal;
double probability1, probability2;
cout << \ \ while ((cin >> total >> choices) && choices <= total) {
cout << \ \ if (!(cin >> mtotal)) break;
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