#include < iostream > #include < cstring > u sing namespace std; class telephone { public:

#include <iostream> #include <cstring> using namespace std; class telephone { public: telephone(char *number, int volume); int dial(char *outgoing_number); protected: char phone_number[32]; int volume; }; telephone::telephone(char *number, int volume) { strcpy(telephone::phone_number, number); telephone::volume = volume; } int telephone::dial(char *outgoing_number) { cout << “Use a rotary or touch-tone phone to call:”<< outgoing_number; cout << “Volume: ” << volume << endl; return(1); }

class touch_tone: public telephone { public: touch_tone(char *number, int volume) : telephone(number, volume) { }; int dial(char *outgoing_number); }; int touch_tone::dial(char *outgoing_number) { cout << “Beep beep beep with touch tone:” << outgoing_number; cout << “ Volume:” << volume << endl; return(1); }

class rotary: public telephone { public: rotary(char *number, int volume) : telephone (number, volume) { }; int dial(char *outgoing_number); }; int rotary::dial (char *outgoing_number) { cout << “Click click click with rotary: “ << outgoing_number; cout << “ Volume: ” << volume << endl; return(1); }

void main(void) { touch_tone office(“363-1111”, 5); rotary home(“555-1234”, 2); telephone *cellular = new telephone (*111-2222”, 3); home.dial(“222-3333”); office.dial(“333-4444”); cellular ->dial(“123-4567”); cellular = &office; cellular ->dial(“890-1234”); }

class telephone { public: telephone(char *number, int volume); virtual int dial(char *outgoing_number); protected: char phone_number[32]; int volume; }; class rotary: public telephone { public: rotary(char *number, int volume): telephone(number, volume) { }; int dial(char *outgoing_number); }; class touch_tone: public telephone { public: touch_tone(char *number, int volume): telephone(number, volume){ }; int dial(char *outgoing_number); };

#include <iostream> #include <cstring> using namespace std; class telephone { public: telephone(char *number, int volume); virtual int dial(char *outgoing_number); protected: char phone_number[32]; int volume; }; telephone::telephone(char *number, int volume) { strcpy(telephone::phone_number, number); telephone::volume = volume; } int telephone::dial(char *outgoing_number) { cout << “Use a rotary or touch_tone phone to call: ” << outgoing_number; cout << “ Volume: ” << volume << endl; }

class touch_tone: public telephone { public: touch_tone(char *number, int volume) : telephone(number, volume) { }; int dial(char *outgoing_number); }; int touch_tone::dial(char *outgoing_number) { cout << “Beep beep beep with touch tone: ” << outgoing_number; cout << “ Volume: ” << volume << endl; return(1); }

class rotary: public telephone { public: rotary(char *number, int volume) : telephone(number, volume) { }; int dial(char *outgoing_number); }; int rotary::dial(char *outgoing_number) { cout << “Click click click with rotary: ” << outgoing_number; cout << “ Volume: ” << volume << endl; return(1); {

void main(void) { touch_tone office (“363-1111”, 5); rotary home(“555-1234”, 2); home.dial(“222-3333”); office.dial(“333-4444”); }

void main(void) { touch_tone office (“363-1111”, 5); rotary home(“555-1234”, 2); telephone *cellular; home.dial(“222-3333”); office.dial(“333-4444”); cellular = &home; cellular ->dial(“555-1234”); cellular = &office; cellular ->dial(“555-5678”); }

#include < iostream > #include < cstring > u sing namespace std; class telephone { public: