If you actually want an array and not a vector, and you want that array dynamically sized at runtime, you would need to create it on the heap (storing it in a pointer), and free it when you’re done.
Coming from Java you need to understand that there’s no garbage collection in C++ – anything you new (create on the heap) in an object you will want to clean up in the destructor with delete.
class foo
{
private:
int *array;
public:
foo() { array = NULL; };
~foo()
{
if (array != NULL)
delete [] array;
}
void createArray()
{
array = new int[5];
}
};
More info at: http://www.cplusplus.com/doc/tutorial/dynamic/
