java - How to add number of months to a specific date -


i want add number of months specific date based on user selected. instance adding 3 months 15/05/2015. tried showing me same date.

code below:

calendar aed = calendar.getinstance(); int monthstoadd = 0; if (advertposteddate.equals(1)) {     monthstoadd = 1; } if (advertposteddate.equals(2)) {     monthstoadd = 2; } if (advertposteddate.equals(3)) {     monthstoadd = 3; }  aed.add(calendar.month, monthstoadd); date adverted = aed.gettime(); dateformat df = new simpledateformat("dd-mm-yyyy"); string advertexpirydate = df.format(adverted);

your code looks fine, exception use if/else if structure instead of if structure. sure advertposteddate has value of 1, 2, or 3? because if doesn't 0 being added months.

public static void main(string[] args) {     integer advertposteddate = 2;      calendar aed = calendar.getinstance(); // 15-5-2015     int monthstoadd = 0;     if (advertposteddate.equals(1)) {         monthstoadd = 1;     } else if (advertposteddate.equals(2)) {         monthstoadd = 2;     } else if (advertposteddate.equals(3)) {         monthstoadd = 3;     }      aed.add(calendar.month, monthstoadd);     date adverted = aed.gettime();     dateformat df = new simpledateformat("dd-mm-yyyy");     string advertexpirydate = df.format(adverted);      system.out.println(advertexpirydate); }

results:

15-07-2015


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