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Views: 2732 | Replies: 6
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Join Date: Jun 2005
Posts: 4
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Newbie Poster
help with for loop this may seem basic but i'm a beginner...i'm writing a program and i need to calculate costs of items which i store into a table and an array.....is there any property or preocedure i could call to enable me to read and add consecutively a set of real numbers in one column in a table....
e.g
item_number//////////////price
1 8.99
2 2.69
3 5.52
i want to beable to add all the prices on a button click to get a total value....
any help no matter how little would be aprreciated...
e.g
item_number//////////////price
1 8.99
2 2.69
3 5.52
i want to beable to add all the prices on a button click to get a total value....
any help no matter how little would be aprreciated...
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Join Date: Jul 2005
Posts: 6
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Newbie Poster
basicly you want to add numbers? didnt get quite your post 
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Join Date: Jun 2005
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Newbie Poster
basically thats it....i want to add all the numbers from the price column.....want the sum of all the numbers..
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Join Date: Jul 2005
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Newbie Poster
you have a known array of numbers/items?
in pseudo code:
on click event
sum := 0
for i := 1 to length_of_array do
begin
sum := sum + array[i];
end;
in pseudo code:
on click event
sum := 0
for i := 1 to length_of_array do
begin
sum := sum + array[i];
end;
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Join Date: Jun 2005
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Newbie Poster
well the array is not of a known size.....it depends on how many numbers the person has entered....thanks for the pseudo code.....thats part of it but how do i get each number the person has entered to be stored into the array.
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Join Date: May 2005
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Light Poster
the easiest way of adding into array and increasing at same time is as follows
var myarray :array of integer; lastrecord: integer; begin lastrecord:=0; while lastrecord<20 do begin setlength(myarray,lastrecord+1); myarray[lastrecord]:=input_value; lastrecord:=lastrecord+1; end;
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