1,HTML source code£º <html> <head> <title>How to use GregorianCalendar</title> </head> <body> <script src="js/jsjava/util/Calendar.js"></script> <script src="js/jsjava/lang/IllegalArgumentException.js"></script> <script> function run() { var c = new GregorianCalendar(); c.setTime(new Date(2007,2,8)); out(c, Calendar.ERA, "Calendar.ERA"); out(c, Calendar.YEAR, "Calendar.YEAR"); out(c, Calendar.MONTH, "Calendar.MONTH"); out(c, Calendar.WEEK_OF_YEAR, "Calendar.WEEK_OF_YEAR"); out(c, Calendar.WEEK_OF_MONTH, "Calendar.WEEK_OF_MONTH"); out(c, Calendar.DATE, "Calendar.DATE"); out(c, Calendar.DAY_OF_MONTH, "Calendar.DAY_OF_MONTH"); out(c, Calendar.DAY_OF_YEAR, "Calendar.DAY_OF_YEAR"); out(c, Calendar.DAY_OF_WEEK, "Calendar.DAY_OF_WEEK"); out(c, Calendar.DAY_OF_WEEK_IN_MONTH, "Calendar.DAY_OF_WEEK_IN_MONTH"); out(c, Calendar.AM_PM, "Calendar.AM_PM"); out(c, Calendar.HOUR, "Calendar.HOUR"); out(c, Calendar.HOUR_OF_DAY, "Calendar.HOUR_OF_DAY"); out(c, Calendar.MINUTE, "Calendar.MINUTE"); out(c, Calendar.SECOND, "Calendar.SECOND"); out(c, Calendar.MILLISECOND, "Calendar.MILLISECOND"); out(c, Calendar.ZONE_OFFSET, "Calendar.ZONE_OFFSET"); out(c, Calendar.DST_OFFSET, "Calendar.DST_OFFSET"); } function out(c, field, des) { document.write(des + ":" + c.get(field)+"<br>"); } run(); </script> </body> </html> 2,The display:

Calendar.ERA:1
Calendar.YEAR:2007
Calendar.MONTH:2
Calendar.WEEK_OF_YEAR:10
Calendar.WEEK_OF_MONTH:2
Calendar.DATE:8
Calendar.DAY_OF_MONTH:8
Calendar.DAY_OF_YEAR:67
Calendar.DAY_OF_WEEK:5
Calendar.DAY_OF_WEEK_IN_MONTH:2
Calendar.AM_PM:0
Calendar.HOUR:0
Calendar.HOUR_OF_DAY:0
Calendar.MINUTE:0
Calendar.SECOND:0
Calendar.MILLISECOND:1173283200000
Calendar.ZONE_OFFSET:-28800000
Calendar.DST_OFFSET:0