boolean problem
//How to compare two houses size
Privatedouble houseSize;
Privateint numberOfRoom;
//Set and get methods
.......................
publicdouble compareHouse(House h){
return ?
}
publicstaticvoid main(Strings[]args){
House myHouse =new House();
House yourHouse =new House();
MyHouse.sethouseSize(20);
yourHouse.sethouseSize(40);
// compareHouse: it returns =0 , >0 or <0;
if( )
............................
//Two problems: 1:what should the compareHouse method return.
//2: how can I test the program, the result should be; =0 , >0 or <0;
}
[1300 byte] By [
peter0001a] at [2007-10-3 4:31:05]
> Two problems: 1:what should the compareHouse method return
It's your method. You are supposed to define what it returns. It can be a random number for all I care.
> //2: how can I test the program, the result should be; =0 , >0 or <0;
By creating a house, setting some values and call the compareHouse method, to see whether it returns what you expect.
You already answer question 1 in question 2! That method should return either <0 (-1 for example), 0 or >0 (1 for example). That would be:
<0 when house 1 is "smaller than" house 2
0 when house 1 is equal to house 2
>0 when house1 is "greather than" house 2
I suggest you check out the Comparable interface and the Collections.sort() method.
> You already answer question 1 in question 2! That
> method should return either <0 (-1 for example), 0 or
> >0 (1 for example). That would be:
>
> <0 when house 1 is "smaller than" house 2
> 0 when house 1 is equal to house 2
> >0 when house1 is "greather than" house 2
How wo you know without specs? Could be the other way around as well. :) And OP still has to define "smaller" and "greater". More rooms? More size? Both?
I'm unsure exactly what you expect from an answer, but here's a suggestion:
return houseSize - h.getHouseSize();
It depends on whether you also want the number of rooms to be taken into account in the comparison? It's for yourself to decide.
Yours, Ole
OleVVa at 2007-7-14 22:34:26 >
