Can I add to an already defined dynamic array?

[Hydrasin]

I created this sample code which takes an int value and creates a dynamic array of that size. I'm just wondering if its possible to add more indexes to the already defined array... Thanks ahead for your input!

#include<iostream>
#include<string>

using namespace std;

class myClass
{
public:
	myClass();
	myClass(string, int);
	
	void setInt(int);
	int getInt();

	void setString(string);
	string getString();

private:
	string theString;
	int theInt;
};

int main()
{
	int arraySize = 0, count = 0;
	
	cout << "Enter size of array: ";
	cin >> arraySize;
	
	cout << endl;
	
	myClass *classPtr = new myClass[arraySize];
/*
	for(count = 0; count < arraySize; count++)
	{
		string eString ="";
		int eInt = 0;

		cout << "object int value: ";
		cin >> eInt;
		classPtr[count].setInt(eInt);
		
		cin.get();

		cout << "Object string value: ";
		getline(cin, eString);
		classPtr[count].setString(eString);
		
		cout << endl;
	}
*/
	for(count = 0; count < arraySize; count++)
	{
		cout << "myClass object at index position: " << count << endl;
		cout << "object int value: " << classPtr[count].getInt() << endl;
		cout << "Object string value: " << classPtr[count].getString() << endl;
		cout << endl;
	}
/*-----------------
	
	Could I add something here to increase the size of the array even though it has already been declared to be of size "arraySize"?
	Or would it be best to create a new array(larger than the first) and just copy the first "arraySize" elements into the new one?

------------------*/

	delete[] classPtr;	
	cin.get();
	cin.get();
	return 0;
}

myClass::myClass()
{
	setInt(0);
	setString("NULL");
}
myClass::myClass(string stringEntry, int intEntry)
{
	setInt(intEntry);
	setString(stringEntry);
}
	
void myClass::setInt(int intEntry)
{
	theInt = intEntry;
}
int myClass::getInt()
{
	return theInt;
}

void myClass::setString(string stringEntry)
{
	theString = stringEntry;
}

string myClass::getString()
{
	return theString;
}

[JLBorges]

> I'm just wondering if its possible to add more indexes to the already defined array...

You have to allocate a fresh array with a larger size, and then move the contents of the old array to the new one. Unless there is some compelling reason, use a std::vector<> instead.
http://www.cprogramming.com/tutorial/stl/vector.html

[Hydrasin]

Okay thanks! My question is in regards to a hw assignment where we're required to used dynamic arrays, we haven't covered vectors yet.