第三章习题汇总
来源:互联网 发布:兰亭序周杰伦知乎 编辑:程序博客网 时间:2024/05/19 01:11
4.
#include <iostream>using namespace std; class stu{private:int num;int s;public:stu(int h,int w){num=h;s=w;}void disaplay();};void stu::disaplay(){cout<<num<<" "<<s<<" "<<endl;}int main() {stu a[5]={stu(95,3930),stu(96,3931),stu(97,3932),stu(98,3933),stu(99,3934)}; stu *p; p=a; p->disaplay(); p=p+2; p->disaplay(); p=p+2; p->disaplay();return 0;}
5.
#include <iostream>using namespace std;class Student { public: Student(int n,float s):num(n),score(s){} int num; float score; };int main(){Student stud[5]={ Student(101,78.5),Student(102,85.5),Student(103,98.5), Student(104,100.0),Student(105,95.5)}; void max(Student* ); Student *p=&stud[0]; max(p); }void max(Student *arr){float max_score=arr[0].score; int k=0; for(int i=1;i<5;i++) if(arr[i].score>max_score) {max_score=arr[i].score;k=i;} cout<<arr[k].num<<" "<<max_score<<endl;}
8.
#include <iostream>using namespace std;class Student {public: Student(int n,float s):num(n),score(s){} void change(int n,float s) {num=n;score=s;} void display() {cout<<num<<" "<<score<<endl;} private: int num; float score; };int main(){Student stud(101,78.5); void fun(Student&); fun(stud); return 0; }void fun(Student &stu){stu.display();stu.change(101,80.5); stu.display();}
9.
#include <iostream>using namespace std;class Product {public: Product(int n,int q,float p):num(n),quantity(q),price(p){}; void total(); static float average(); static void display(); private: int num; int quantity; float price; static float discount; static float sum; static int n; };void Product::total() {float rate=1.0; if(quantity>10) rate=0.98*rate; sum=sum+quantity*price*rate*(1-discount); n=n+quantity; }void Product::display() {cout<<sum<<endl; cout<<average()<<endl; }float Product::average() {return(sum/n);}float Product::discount=0.05;float Product::sum=0;int Product::n=0;int main() { Product Prod[3]={ Product(101,5,23.5),Product(102,12,24.56),Product(103,100,21.5) }; for(int i=0;i<3;i++) Prod[i].total(); Product::display(); return 0; }
10.
#include <iostream>using namespace std;class Date;class Time {public: Time(int,int,int); friend void display(const Date &,const Time &); private: int hour; int minute; int sec; }; Time::Time(int h,int m,int s) {hour=h; minute=m; sec=s; }class Date {public:Date(int,int,int); friend void display(const Date &,const Time &); private: int month; int day; int year; };Date::Date(int m,int d,int y) {month=m; day=d; year=y; }void display(const Date &d,const Time &t) { cout<<d.month<<"/"<<d.day<<"/"<<d.year<<endl; cout<<t.hour<<":"<<t.minute<<":"<<t.sec<<endl; }int main(){ Time t1(16,58,30); Date d1(2015,4,21); display(d1,t1); return 0;}
11.
#include <iostream>using namespace std;class Time;class Date {public: Date(int,int,int); friend Time;private: int month; int day; int year; };Date::Date(int m,int d,int y):month(m),day(d),year(y){ }class Time {public: Time(int,int,int); void display(const Date &); private: int hour; int minute; int sec; };Time::Time(int h,int m,int s):hour(h),minute(m),sec(s){ }void Time::display(const Date &d) { cout<<d.month<<"/"<<d.day<<"/"<<d.year<<endl; cout<<hour<<":"<<minute<<":"<<sec<<endl; }int main(){ Time t1(16,58,30); Date d1(2015,4,21); t1.display(d1); return 0;}
12.
#include <iostream>using namespace std;template<class numtype>class Compare {public: Compare(numtype a,numtype b); numtype max(); numtype min(); private: numtype x,y; };template <class numtype>Compare<numtype>::Compare(numtype a,numtype b) {x=a;y=b;}template <class numtype>numtype Compare<numtype>::max() {return (x>y)?x:y;}template <class numtype>numtype Compare<numtype>::min() {return (x<y)?x:y;}int main(){Compare<int> cmp1(3,7); cout<<cmp1.max()<<" is the Maximum of two integer numbers."<<endl; cout<<cmp1.min()<<" is the Minimum of two integer numbers."<<endl<<endl; Compare<float> cmp2(45.78,93.6); cout<<cmp2.max()<<" is the Maximum of two float numbers."<<endl;cout<<cmp2.min()<<" is the Minimum of two float numbers."<<endl<<endl; Compare<char> cmp3('a','A'); cout<<cmp3.max()<<" is the Maximum of two characters."<<endl; cout<<cmp3.min()<<" is the Minimum of two characters."<<endl; return 0;}
0 0
- 第三章习题汇总
- 第二章习题汇总
- 第四章习题汇总
- 第五章习题汇总
- 第六章习题汇总
- 第七章习题汇总
- 第八章习题汇总
- 第三章习题
- C++习题第三章
- 第三章习题 T2
- 第三章习题T3
- 第三章习题T4
- 第三章习题T5
- 第三章习题T6
- 第三章习题
- 第三章习题
- 第三章习题
- 第三章习题5.3
- TreeMap简单示例
- python的subprocess:子程序调用(调用执行其他命令);获取子程序脚本当前路径问题
- opencv2.framework在macox10.10报错
- Android 设定横竖屏,屏幕旋转导致Activity重置问题
- unity2d 动画
- 第三章习题汇总
- 程序员面试——走台阶问题
- kindEditor 在springMvc+freemarker +hibernate 框架中使用 以及使用的时候产生的问题的解决
- 联合体union 与结构体struct
- 图解TCP-IP协议
- 30本互联网相关的电子书
- Spark朴素贝叶斯(naiveBayes)
- 图的dfs遍历和bfs遍历
- multipart data using Android Volley