?? p66 obj3.ox
字號:
#include <oxstd.h>
#import <AnnualSample>
class AnnualDb : AnnualSample // derived class
{
AnnualDb(); // constructor
~AnnualDb(); // destructor
Create(const mX, const asX, const iYear1, const iYear2);
virtual Report();
decl m_mX;
decl m_asX;
};
AnnualDb::AnnualDb()
{
AnnualSample(0, 0);
m_mX = <>;
m_asX = {};
}
AnnualDb::~AnnualDb()
{
println("Destructor call: deleting object.");
}
AnnualDb::Create(const mX, const asX,const iYear1,const iYear2)
{
m_mX = mX;
m_asX = asX;
AnnualSample(iYear1, iYear2);
Report();
}
AnnualDb::Report()
{
println("The sample size is: ", m_iYear2 - m_iYear1 + 1);
}
main()
{
decl db = new AnnualDb();
db.Create(rann(20,2), {"Var1", "Var2"}, 1981, 2000);
// decl db2 = new AnnualDb();
// db.Create(student(100,3), , 1900, 2000);
// Println("these are the data",db.Create(rann(20,2), {"Var1", "Var2"}, 1981, 2000));
delete db;
}
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