add another 12 hours and print out the date and time : Calendar « Data Type « Java Tutorial

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Java Tutorial » Data Type » Calendar 
2. 33. 10. add another 12 hours and print out the date and time
import java.text.DateFormat;
import java.util.Calendar;

public class CalendarManipulation {
  public static void main(String s[]) {
    Calendar cal = Calendar.getInstance();
    DateFormat df = DateFormat.getDateTimeInstance(DateFormat.FULL,
        DateFormat.MEDIUM);

    System.out.println(df.format(cal.getTime()));

    cal.add(Calendar.AM_PM, 1);
    System.out.println(df.format(cal.getTime()));
  }
}
2. 33. Calendar
2. 33. 1. The java.util.Calendar Class
2. 33. 2. Construct a Calendar object by using the setTime method
2. 33. 3. To obtain a date part, such as the hour, the month, or the year, use the get method
2. 33. 4. To change a date/time component, use its set method: public void set (int field, int value)
2. 33. 5. Change multiple components at the same time
2. 33. 6. Find the Difference Between Two Given Dates
2. 33. 7. Check for a Leap Year
2. 33. 8. Checking for a Leap Year: using GregorianCalendar
2. 33. 9. Get Days Of The Week for different locale
2. 33. 10. add another 12 hours and print out the date and time
2. 33. 11. subtract 4 hours from the time and print out the date and time
2. 33. 12. add 8 days to the current date and print out the date and time
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