Date Manipulation in Java

java.util.Date doesn't have explicit methods for adding days, months, years, etc. However you can indirectly accomplish these operations through the java.util.Calendar class:
       
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.YEAR, 3);
Date applicationDate = calendar.getTime();

This example gets the current date (aka SYSDATE) then adds 3 years to it; then assigns it to applicationDate variable.

If you already have an existing Date object, just get a Calendar instance then call:

setTime(Date date)

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