In this example java program we have subtracted the two time spans with the use of add() method of Calendar class which is available in the java.util package. We can subtract the time spans with the use of add() method which takes two arguments, first is the field and another is amount and if we will be providing negative integer value it automatically subtracts the given amount accordingly.
In our java program we have created an object of Calendar by calling constructor of GregorianCalendar with the date 10 October 2008. Now suppose we want to subtract 2 Months in this time span with the use of add() method . This can be done as follows:
Where Calendar.MONTHS represents integer value for Months. add() method automatically does the rolling according to the calendar addition or subtraction.
Here is the example code of SubtractTimeSpan.java as follows:
Before Subtracting date is:
Subtracting 2 Months
After Subtracting date is:
Rs. 20,000 US$ 300
Today: Rs. 10,000 US$150
Course Duration: 30 hrs
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