一个比较全的日期操作例子Calendar

王朝java/jsp·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

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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