Array of objects

[Joeman]

char n[29];

Why not use std::string?

yep sure it would be like this:

I think you quoted more than what you intended because you didn't fix the unsafe practice of calling delete by hand which can be fixed with raii design at the least, but that is ok.

Stock *s1=new Stock[2];

should be

unique_ptr< Stock [] >s1( new Stock[2] );

which can also be

vector< Stock >s1( 2 );

or even just

Stock s1[2];