C++PrimerPlus第四章编程练习.doc

第四章编程练习1、#include int main() using namespace std; coutWhat is your first name? ; char firstname20; cin.getline(firstname,20); coutWhat is your last name? ; char lastname10; cin.get(lastname,10).get(); coutgrade).get(); coutage; coutName:lastname, firstnameendl; coutGrade: char(grade+1)endl; coutAge: ageendl; system(pause); return 0;2、#include #include int main() using namespace std; coutWhat is your first name? ; string f_name; getline(cin,f_name); coutWhat is your last name? ; string l_name; getline(cin,l_name); coutgrade; cin.get(); coutage; string full_name=l_name+, +f_name; coutName: full_nameendl; coutGrade: char(grade+1)endl; coutAge: ageendl; system(pause); return 0;3、#include #include int main() using namespace std; coutfirstname).get(); coutEnter your last name: ; char lastname10; cin.getline(lastname,10); coutHeres the information in a single string: ; char fullname20; strcpy(fullname,lastname); strcat(fullname, ); strcat(fullname,firstname); coutfullnameendl; system(pause); return 0;4、#include #include int main() using namespace std; coutEnter your first name: ; string f_name; getline(cin,f_name); coutEnter your last name: ; string l_name; getline(cin,l_name); string full_name=l_name+, +f_name; coutHeres the information in a single string: full_nameendl; system(pause); return 0;5、#include struct CandyBar char brand_name20; double weight; int calorie;int main() using namespace std; CandyBar snack= Mocha Munch, 2.3, 350 ; coutThe name of the candy is: snack.brand_nameendl; coutThe weight of the candy is: snack.weightendl; coutThe calorie of the candy is: snack.calorieendl; system(pause); return 0;6、#include struct CandyBar char brand_name20; double weight; int calorie;int main() using namespace std; CandyBar snack3= Mocha Munch,2.3,350, Double Mint,1.5,100, Contacnt,4.5,255 ; for(int i=0;i3;i+) coutThe name of the candy is: snacki.brand_nameendl; coutThe weight of the candy is: snacki.weightendl; coutThe calorie of the candy is: snacki.calorieendl; system(pause); return 0;7、#include struct Pizza char c_name20; double diameter; double weight;int main() using namespace std; Pizza sample1; coutPlease enter the name of the company: ; cin.getline(sample1.c_name,20); coutsample1.diameter).get(); coutsample1.weight; cin.get(); coutnnName: sample1.c_nameendl; coutDiameter: sample1.diameterendl; coutWeight: sample1.weightendl; system(pause); return 0;8、#include struct Pizza char c_name20; double weight; double diameter;int main() using namespace std; Pizza *ps=new Pizza; coutps-diameter).get(); coutc_name,20).get(); coutps-weight; coutnnName: c_nameendl; coutDiameter: diameterendl; coutWeight: weightendl; delete ps; system(pause); return 0;9、#include struct CandyBar char brand_name20; double weight; int calorie;int main() using namespace std; CandyBar *ps=new CandyBar3; for(int i=0;i3;i+) coutPlease enter the name: ; cin.getline(psi.brand_name,20); coutpsi.weight).get(); coutpsi.calorie; cin.get(); for(int i=0;i3;i+) coutThe name of the candy