allocating memory in constructor

[Micko]

Hi, I have a question about allocating memory in constructor. For example consider simple
class Array:

#include <iostream>
using namespace std;

class Array
{
	double* array;
	int len;
public:
	Array(int);
	void load();
	void show();
	~Array();
};

Array::Array(int i):len(i)
{
	array=new double[len];
}
void Array::load()
{
	cout<<"Enter elements: ";
	for(int i=0;i<len;i++)
	{
		cin>>array[i];
	}
}
void Array::show()
{
	for(int i=0;i<len;i++)
		cout<<array[i]<<" ";
}
Array::~Array()
{
	delete [] array;
}

int main()
{
	Array a(5);
	a.load();
	a.show();
}

I've read somewhere that it's not good to have new in constructor because there is a possibility that under some circumstances process of memory allocation fails. In that case object will not be created in a propery way. How to handle this case? Should I write for example a new method create() and in constructor to leave just:

Array::Array(int i):len(i)
{
}

Beacuse many of you have a lot more experience then I have I'm sure you're going to give me some good advices on this issue.
Thanks very much!

[Sebastiani]

>> How to handle this case?

just catch the exception, ie:

try {
 // allocate something 
} catch(std::bad_alloc foo) {
 // handle
}

[Micko]

So it is OK to leave new in constructor?

[sean]

As long as you do some simple error handling, yes.