?? 14_4.cpp
字號:
//14_4
#include <iostream.h>
class CAT{
public:
CAT();
CAT(const CAT&);
~CAT();
int GetAge() const { return *itsAge; }
void SetAge(int age){ *itsAge=age; }
protected:
int* itsAge;
};
CAT::CAT()
{
itsAge=new int;
*itsAge =5;
}
CAT::CAT(const CAT& c)
{
itsAge = new int;
*itsAge = *(c.itsAge);
}
CAT::~CAT()
{
delete itsAge;
itsAge =0;
}
void main()
{
CAT frisky;
cout <<"frisky's age:" <<frisky.GetAge() <<endl;
cout <<"Setting frisky to 6...\n";
frisky.SetAge(6);
cout <<"Creating boots from frisky\n";
CAT boots(frisky);
cout <<"frisky's age:" <<frisky.GetAge() <<endl;
cout <<"boots'age:" <<boots.GetAge() <<endl;
cout <<"setting frisky to 7...\n";
frisky.SetAge(7);
cout <<"frisky's age:" <<frisky.GetAge() <<endl;
cout <<"boots'age:" <<boots.GetAge() <<endl;
}
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