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- (* Chapter 15 - Program 7 *)
- program Inheritance_3;
-
- uses vehicles, CarTruck;
-
- { ************************ main program ************************** }
-
- var Unicycle : Vehicle;
- Sedan : array[1..3] of Car;
- Semi_Point : ^Truck;
- Index : integer;
-
- begin
-
- Unicycle.Init(1, 12.0);
- for Index := 1 to 3 do
- Sedan[Index].Init(4, 2100.0, 5 + Index);
- New(Semi_Point);
- Semi_Point^.Init(1, 25000.0, 18, 5000.0);
-
- WriteLn('The unicycle weighs ', Unicycle.Get_Weight:5:1,
- ' pounds, and has ', Unicycle.Get_Wheels, ' wheel.');
- for Index := 1 to 3 do
- WriteLn('The car weighs ', Sedan[Index].Get_Weight:7:1,
- ' pounds, and carries ', Sedan[Index].Passengers,
- ' passengers.');
-
- WriteLn('The semi has a wheel loading of ',
- Semi_Point^.Wheel_Loading:8:1,
- ' pounds per tire,');
- WriteLn(' and has an efficiency of ', Semi_Point^.Efficiency:5:1,
- ' percent.');
-
- with Semi_Point^ do
- begin
- WriteLn('The semi has a wheel loading of ', Wheel_Loading:8:1,
- ' pounds per tire,');
- WriteLn(' and has an efficiency of ', Efficiency:5:1,
- ' percent.');
- end;
- Dispose(Semi_Point);
- end.
-
-
-
-
- { Result of execution
-
- The unicycle weighs 12.0 pounds, and has 1 wheel.
- The car weighs 2100.0 pounds, and carries 6 passengers.
- The car weighs 2100.0 pounds, and carries 7 passengers.
- The car weighs 2100.0 pounds, and carries 8 passengers.
- The semi has a wheel loading of 1666.7 pounds per tire,
- and has an efficiency of 83.3 percent.
- The semi has a wheel loading of 1666.7 pounds per tire,
- and has an efficiency of 83.3 percent.
-
- }