new data in Copy Constructor

Refer to the Problem of using default Copy Constructor, when Class new some data, we can provide our own copy constructor to solve the problem:

#include <iostream>

using namespace std;

class MyClass{
    public:
        MyClass(const int mSize);
        MyClass(MyClass& src);
        ~MyClass();
        void fill(char c);
        void getInfo();
    private:
        int size;
        char* ptToChar;
};

//Constructor with default size
MyClass::MyClass(const int mSize = 10)
{
    size = mSize;
    ptToChar = new char[size];

}

//Copy Constructor
MyClass::MyClass(MyClass& src){
    size = src.size;
    ptToChar = new char[size];
    for(int i = 0; i < size; i++)
        ptToChar[i] = src.ptToChar[i];

}

MyClass::~MyClass(){
    cout << "MyClass Destructor: " << endl;
}

void MyClass::fill(char c){
    for(int i = 0; i < size; i++)
        ptToChar[i] = c;
}

void MyClass::getInfo()
{
    cout << "size: " << size << endl;
    for(int i = 0; i < size; i++)
        cout << ptToChar[i];
    cout << endl;
}

int main()
{
    MyClass myClass1(20);
    myClass1.fill('A');
    myClass1.getInfo();

    MyClass myClass2(myClass1); //Using our Copy Constructor
    myClass2.getInfo();

    myClass1.fill('B');
    myClass1.getInfo();
    myClass2.getInfo();
    return 0;
}