Question

I have a datepicker where the user selects a date and then a checkbox on what type of period he wants to get the date from. For example:

User selects the 1. of November and selects the checkbox “Month” in this case the end date will be increased by 1 and even if this sound simple enough its slowly starting to annoy me alot!

The problem is that Java doesnt have a great date object that works for this kind of thing so i thought that i would use Calendar but it isnt easy to increment a calendar date take for instance the following example:

endDate.set(startDate.YEAR, startDate.MONTH+1, startDate.DATE);

in theory this would increment the month by one being one larger than the start date. This works in about 90 % of the months EXECPT from December if you increase the month by 1 in December then the integer month return 13 same thing happens for startDate.DATE; and startDate.Year;

My question is isnt there an easier way to do this? i could make a ton of If sentences but i really think that it is kinda redundant.

Answer 1

Use add method of java.util.Calendar.

endDate.set(startDate.YEAR, startDate.MONTH, startDate.DATE);
if(some_condition) {
   endDate.add(Calendar.MONTH, 1);
}