Constructors accessing private data

Question

Still new to C++ and I'm trying to understand accessing private data, using constructors. How would I display the values of the data members of myClass? Any help would be great. Thanks

class NumberClass
{
public:
     void func();       // assigns numeric constants to nNum and fNum
     void print() const;    //displays the values of nNum and fNum
     NumberClass();
     NumberClass(int, float);
private:
     int nNum;
     float fNum;
};

int main()
{
    NumberClass myClass;
    //display values here

    return 0;
}

score 0 · Answer 1 · answered Mar 26 '14 at 01:02

0

By the looks of your interface, your professor probably wants you to implement print() to print the members, and then call that method on your object.

answered Mar 26 '14 at 01:02

Luchian Grigore

253,575
64
457
625

score 0 · Answer 2 · answered Mar 26 '14 at 01:08

0

You could implement print(), and call it with a instance of NumberClass. Like

NumberClass obj;
...
obj.print()

answered Mar 26 '14 at 01:08

YaleCheung

630
3
9

score 0 · Answer 3 · answered Mar 26 '14 at 01:12

You could write get methods for the class which is a good way to print it.

class NumberClass
{
public:
 void func();       // assigns numeric constants to nNum and fNum
 void print() const;    //displays the values of nNum and fNum
 NumberClass();
 NumberClass(int, float);
 private:
 int nNum;
 float fNum;

public int getNum(){
return nNum;
}
 public float getNum(){
return fNum;
}
};

int main()
{
NumberClass myClass;
//display values here
cout<<myClass.getNum();
return 0;
}

Could be the example but I didint checked so you can fixed the little issues.

Constructors accessing private data

3 Answers3