The Java Developers Almanac 1.4

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e375. Determining the Number of Days in a Month

This example uses the Calendar class to determine the number of days in the month of a particular year.

    // Create a calendar object of the desired month
    Calendar cal = new GregorianCalendar(1999, Calendar.FEBRUARY, 1);
    
    // Get the number of days in that month
    int days = cal.getActualMaximum(Calendar.DAY_OF_MONTH); // 28
    
    // Try month in a leap year
    cal = new GregorianCalendar(2000, Calendar.FEBRUARY, 1);
    days = cal.getActualMaximum(Calendar.DAY_OF_MONTH);     // 29

Related Examples

e373. Getting the Current Date
e374. Creating a Date Object for a Particular Date
e376. Comparing Dates
e377. Determining a Person's Age
e378. Determining If a Year Is a Leap Year
e379. Determining the Day-of-Week for a Particular Date

See also: Arrays Bits Collections Hash Tables Lists Property Files Sets Sorted Collections Time Timers

© 2002 Addison-Wesley.