Question

I am working in an integrated environment (IBM Process Server) and I am not able to import anything, can only use standard java functionality.

How can I add x number of months to a given date?

Answer 1

Given that you have Date imported by default, you can add a number of months to the date object by the following:

public void addMonths(Date date, int numMonths){
    date.setMonth((date.getMonth() - 1 + numMonths) % 12 + 1);
}

NOTE

You can use external classes from Java SE by using their full package name. i.e., even if you cannot add import java.util.Calendar; to the top of you .java file, you can still create a calendar object by executing java.util.Calendar cal = java.util.Calendar.getInstance();