. (Displaying a calendar) Write a program that displays the calendar for the cur-ren...

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(Displaying a calendar) Write a program that displays the calendar for the cur-rent month, as shown in Figure 17.47. Use labels, and set texts on the labels to display the calendar. Use the GregorianCalendar class in § 14.3, "Example: Calendar and GregorianCalender," to obtain the information about month, year, first day of the month, and number of days in the month.