OJ第三批——Problem H：C++习题 继承与组合

问题及代码：

Problem H: C++习题 继承与组合

Time Limit: 1 Sec   Memory Limit: 128 MB
Submit: 803   Solved: 582
[ Submit][ Status][ Web Board]

Description

已知类如下：

（1） BirthDate（生日类） 含有：year,month,day 等数据成员

（2） Teacher（教师类）含有：num,name,sex 等数据成员

（3） Professor（教授类）含有：教师类和生日类的数据成员

要求：

（1）通过对Teacher和BirthDate使用继承和组合的方式设计Professor

（2）定义Professor类对象prof，并给出所有数据的初值

（3）修改prof的生日数据

（4）输出prof的全部最新数据

Input

 num,name,sex,year,month,day 和修改后的year,month,day

Output

 num,name,sex,year,month,day 

Sample Input

2001 Huang m
1970 1 1
1994 5 26

Sample Output

num:2001
name:Huang
sex:m
birthday:1994/5/26

HINT

 前置代码及类型定义已给定如下，提交时不需要包含，会自动添加到程序前部

/* C++代码 */

#include <iostream>

#include <string>

using namespace std;

class BirthDate {

public:

    BirthDate(int,int,int);

    void display();

    void setbirthday(int,int,int);

private:

    int year;

    int month;

    int day;

};

class Teacher

{

public:

    Teacher(int,string,char);

    void display();

private:

    int num;

    string name;

    char sex;

};

class Professor:public Teacher

{

public:

    Professor(int,string,char,BirthDate);

    void display();

    void setbirthday(int,int,int);

private:

    BirthDate birthday;

};

主函数已给定如下，提交时不需要包含，会自动添加到程序尾部

/* C++代码 */

int main()

{

    int num;

    string name;

    char sex;

    int year,month,day;

    cin>>num>>name>>sex;

    cin>>year>>month>>day;

    Professor prof(num,name,sex,BirthDate(year,month,day));

    cin>>year>>month>>day;

    prof.setbirthday(year,month,day);

    prof.display();

    return 0;

}

 

 

#include <iostream>
#include <string>

using namespace std;

class BirthDate
{
public:
    BirthDate(int,int,int);
    void display();
    void setbirthday(int,int,int);
private:
    int year;
    int month;
    int day;
};

class Teacher
{
public:
    Teacher(int,string,char);
    void display();
private:
    int num;
    string name;
    char sex;
};

class Professor:public Teacher
{
public:
    Professor(int,string,char,BirthDate);
    void display();
    void setbirthday(int,int,int);
private:
    BirthDate birthday;
};

BirthDate::BirthDate(int y,int m,int d):year(y),month(m),day(d) {}

void BirthDate::display()
{
    cout<<"birthday:"<<year<<"/"<<month<<"/"<<day<<endl;
}

void BirthDate::setbirthday(int y,int m,int d)
{
    year=y;
    month=m;
    day=d;
}

Teacher::Teacher(int n,string nam,char s)
{
    num=n;
    name=nam;
    sex=s;
}

Professor::Professor(int n,string nam,char s,BirthDate(b)):Teacher(n,nam,s),birthday(b) {}

void Professor::display()
{
    Teacher::display();
    birthday.display();
}

void Professor::setbirthday(int y,int m,int d)
{
    birthday.setbirthday(y,m,d);
}

void Teacher::display()
{
    cout<<"num:"<<num<<endl;
    cout<<"name:"<<name<<endl;
    cout<<"sex:"<<sex<<endl;
}

int main()
{
    int num;
    string name;
    char sex;
    int year,month,day;
    cin>>num>>name>>sex;
    cin>>year>>month>>day;
    Professor prof(num,name,sex,BirthDate(year,month,day));
    cin>>year>>month>>day;
    prof.setbirthday(year,month,day);
    prof.display();
    return 0;
}

 

运行结果：