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一个比较全的日期操作例子Calendar

2005-03-15 08:00:00  作者:  来源:互联网  浏览次数:0  文字大小:【】【】【
简介:import java.text.DateFormat; import java.util.*; public class JSPCalendar { Calendar calendar = null; public JSPCalendar() { calendar = Calendar.getInstance(); Date trialTime = new Da...

import java.text.DateFormat; import java.util.*;

public class JSPCalendar { Calendar calendar = null;

public JSPCalendar() { calendar = Calendar.getInstance(); Date trialTime = new Date(); calendar.setTime(trialTime); }

public int getYear() { return calendar.get(Calendar.YEAR); } public String getMonth() { int m = getMonthInt(); String[] months = new String [] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" }; if (m > 12) return "Unknown to Man"; return months[m - 1];

}

public String getDay() { int x = getDayOfWeek(); String[] days = new String[] {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

if (x > 7) return "Unknown to Man";

return days[x - 1];

} public int getMonthInt() { return 1 + calendar.get(Calendar.MONTH); }

public String getDate() { return getMonthInt() + "/" + getDayOfMonth() + "/" + getYear();

}

public String getTime() { return getHour() + ":" + getMinute() + ":" + getSecond(); }

public int getDayOfMonth() { return calendar.get(Calendar.DAY_OF_MONTH); }

public int getDayOfYear() { return calendar.get(Calendar.DAY_OF_YEAR); }

public int getWeekOfYear() { return calendar.get(Calendar.WEEK_OF_YEAR); }

public int getWeekOfMonth() { return calendar.get(Calendar.WEEK_OF_MONTH); }

public int getDayOfWeek() { return calendar.get(Calendar.DAY_OF_WEEK); } public int getHour() { return calendar.get(Calendar.HOUR_OF_DAY); } public int getMinute() { return calendar.get(Calendar.MINUTE); }

public int getSecond() { return calendar.get(Calendar.SECOND); }

public static void main(String args[]) { JSPCalendar db = new JSPCalendar(); p("date: " + db.getDayOfMonth()); p("year: " + db.getYear()); p("month: " + db.getMonth()); p("time: " + db.getTime()); p("date: " + db.getDate()); p("Day: " + db.getDay()); p("DayOfYear: " + db.getDayOfYear()); p("WeekOfYear: " + db.getWeekOfYear()); p("era: " + db.getEra()); p("ampm: " + db.getAMPM()); p("DST: " + db.getDSTOffset()); p("ZONE Offset: " + db.getZoneOffset()); p("TIMEZONE: " + db.getUSTimeZone()); }

private static void p(String x) { System.out.println(x); }

public int getEra() { return calendar.get(Calendar.ERA); }

public String getUSTimeZone() { String[] zones = new String[] {"Hawaii", "Alaskan", "Pacific", "Mountain", "Central", "Eastern"}; return zones[10 + getZoneOffset()]; }

public int getZoneOffset() { return calendar.get(Calendar.ZONE_OFFSET)/(60*60*1000); }

public int getDSTOffset() { return calendar.get(Calendar.DST_OFFSET)/(60*60*1000); }

public int getAMPM() { return calendar.get(Calendar.AM_PM); } }

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