the Meaning of ... [CLOSED [closed] - ios

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Closed 10 years ago.
This is stupid, but i have to know how ( % ) sign means, because i want to add days.
this is an example.
int seconds = 78120;
int forHours = (seconds1 / 3600),
remainder = (seconds1 % 3600),
forMinutes = remainder / 60,
forSeconds = remainder % 60;
NSString *Time = [NSString stringWithFormat:#"%02i:%02i:%02i",forHours,forMinutes,forSeconds];
Label.text = Time;
Result:
21:42:00
i want the result to be like ( 0 days, 21:42:00 ) like ( DD, HH:mm:ss )

Answer 1

It's called the modulo operation. It's whats left when you divide a number (and only take into account whole numbers).
Examples:
3 % 2 = 1
6 % 2 = 0
6 % 3 = 0
6 % 4 = 2

Answer 2

% (modulo) gives the remainder after division.
So you can add the separation for days at the start, then use modulo to get the number of seconds after removing those accounted for in days:
int seconds = 78120;
int days = seconds / 86400;
// Equivalent to: seconds = seconds - days * 86400 /*# seconds in a day*/;
seconds = seconds % 86400; // seconds remaining less than a day
int forHours = (seconds1 / 3600),
remainder = (seconds1 % 3600), // seconds remaining within an hour
forMinutes = remainder / 60,
forSeconds = remainder % 60; // seconds remaining less than a minute

Answer 3

The modulus (%) operator returns the remainder of the integer division.
a = 13 % 5;
Here, a will equal 3.
Try:
int fordays = seconds1 / 86400,
remainder = seconds1 % 86400,
forHours = remainder / 3600,
remainder = remainder % 3600,
forMinutes = remainder / 60,
forSeconds = remainder % 60;
1 day = 86400 seconds.