Question

Calendar’s add method in Java takes an integer as an input

int secs = 3;
cal.add(Calendar.SECOND, secs);

But what if the seconds are Long type.

long secs = 3

There’s quite a few possibilities like adding the seconds iterative, but what are the other options?

Answer 1

If the value stored in long sec is less or equal then Integer.MAX_VALUE you can cast to int:

cal.add(Calendar.SECOND, (int) sec));

If the value is less or equal Long.MAX_VALUE / 1000 then you can convert the seconds to milliseconds and use a different approach:

cal.setTimeInMillis(cal.getTimeInMillis() + (sec*1000));