Thread: Check difference between no. of stops, calculate cost

Originally Posted by JavaStudent23

1) How can I calculate the difference between the stops without going into negative figure?
2) How can I code a calculation which says; if stops = ‘1, 2, 3’ then charge £4, anything higher add £2 for each stop.

1) There are two different options. One, is to have the stops loop in a circle so they go in the order of 1,2,3,4,5,6,1,2... etc. To achieve this, you can have:

if(stopfrom > stopto)
{
     stops = stopto+numberofstops-stopfrom;
}
else
{
     stops=stopto-stopfrom;
}

The other, simpler solution, is to use:

stops=Math.abs(stopto-stopfrom);

so a negitive number will become positive.

2) This is just a simple if else solution:

if(stops<=3)
     charge=firstthreestopscost;
else
     charge=(stops-3)*stopscost+firstthreestopscost;

Hello there,

What I'd do in this case is probably just calculate the number of stops passed.

    int stops = endStop - startStop;
 
    // If number of stops is a negative number just invert it to a positive number
    if(stops < 0) {
        stops *= -1;
    }
 
    // Do your maths here to calculate the price.

I believe this would take into account for the fact that a person might travel from stop 9 to stop 4 which would mean they've gone (4 - 9 = -5) -5 stops which inverted would be 5 stops and then you do your calculation from there.

Simples!

// Json

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Cheers!

// Json