A few seconds ago, a few minutes ago, a few hours ago, a few days ago, a few months ago, a few years ago, java Implementation

A few seconds ago, a few minutes ago, a few hours ago, a few days ago, a few months ago, a few years ago, java Implementation

Package com. zuidaima; import java. text. parseException; import java. text. simpleDateFormat; import java. util. date; public class RelativeDateFormat {private static final long ONE_MINUTE = 60000L; private static final long ONE_HOUR = 3600000L; private static final long ONE_DAY = 86400000L; private static final long ONE_WEEK = 6048000l; private static final String ONE_SECOND_AGO = "seconds ago"; private static fi Nal String ONE_MINUTE_AGO = "Minutes Ago"; private static final String ONE_HOUR_AGO = "Hours Ago"; private static final String ONE_DAY_AGO = "Days Ago "; private static final String ONE_MONTH_AGO = "Months Ago"; private static final String ONE_YEAR_AGO = "years ago"; public static void main (String [] args) throws ParseException {SimpleDateFormat format = new SimpleDateFormat ("yyyy-MM-dd HH: m: s"); Date date = format. parse ("2013-11-11 18:35:35 "); System. out. println (format (date);} public static String format (Date date) {long delta = new Date (). getTime ()-date. getTime (); if (delta <1L * ONE_MINUTE) {long seconds = toSeconds (delta); return (seconds <= 0? 1: seconds) + ONE_SECOND_AGO;} if (delta <45L * ONE_MINUTE) {long minutes = toMinutes (delta); return (minutes <= 0? 1: minutes) + ONE_MINUTE_AGO;} if (delta <24L * ONE_HOUR) {long hours = toHours (delta); return (hours <= 0? 1: hours) + ONE_HOUR_AGO;} if (delta <48L * ONE_HOUR) {return "yesterday";} if (delta <30L * ONE_DAY) {long days = toDays (delta ); return (days <= 0? 1: days) + ONE_DAY_AGO;} if (delta <12L * 4L * ONE_WEEK) {long months = toMonths (delta); return (months <= 0? 1: months) + ONE_MONTH_AGO;} else {long years = toYears (delta); return (years <= 0? 1: years) + ONE_YEAR_AGO;} private static long toSeconds (long date) {return date/1000L;} private static long toMinutes (long date) {return toSeconds (date) /60L;} private static long toHours (long date) {return toMinutes (date)/60L;} private static long toDays (long date) {return toHours (date)/24L ;} private static long toMonths (long date) {return toDays (date)/30L;} private static long toYears (long date) {return toMonths (date)/365L ;}}