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

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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：