#include <oxstd.h>
#include <AnnualDb.ox>

class AnnualDb2 : AnnualDb        // derived class
{
    AnnualDb2();                      // constructor
	Report();
}
AnnualDb2::AnnualDb2()
{
    AnnualSample(0, 0);
    m_mX = <>;
    m_asX = {};
//	AnnualDb();
}

AnnualDb2::Report()
{
    println("NEW MESSAGE. The sample size is: ", m_iYear2 - m_iYear1 + 1);
}
main()
{
    decl db = new AnnualDb2();
    db.Create(rann(20,2), {"Var1", "Var2"}, 1981, 2000);
    delete db;
}