how to implement a class hierarchy??

[andreif8]

Hy there..
i need to implement a class hierarchy to configure the structure of a building..
a building got a nr. of floors,each floor got a nr. of flats,each flat got a nr. of rooms,each room got one door and a nr of windows..so..
1.i need to create a txt file to define the structure of this building
2.i need to read the txt file and to implement a class hierarchy to configure this structure

<building>1
<floor>1
<ap>1
<room>1</room>1
<room>2</room>1
<room>3</room>1
</ap>
<ap>2
<room>1</room>1
<room>2</room>1
</ap>
</floor>

<floor>2
<ap>1
<room>1</room>
<room>2</room>
<room>3</room>
<room>4</room>
</ap>
</floor>

</Bbuilding>

<building>2
<floor>1
<ap>1
<room>1</room>1
<room>2</room>1
<room>3</room>1
</ap>
<ap>2
<room>1</room>1
<room>2</room>1
</ap>
</floor>
</building>

i hope anyone can help me...i'm new in this and i would really appreciate any kind of help...10x's a lot

[Bazzy]

Is this what you are looking for?

class building with vector of floors
class floor with vector of rooms
... 

[andreif8]

probably...i'm not sure whar method should i use for this problem...
10x's again

[firedraco]

Classes containing other classes, exactly what Bazzy said