compute Relative Time String - Java java.util

Java examples for java.util:Time

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Description

compute Relative Time String

Demo Code


//package com.java2s;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.concurrent.TimeUnit;

public class Main {
    public static String computeRelativeTimeString(Date value) {
        SimpleDateFormat dateformat = new SimpleDateFormat(
                "hh:mma MM-dd-yyyy");

        long seconds = (TimeUnit.MILLISECONDS.toSeconds(System
                .currentTimeMillis() - value.getTime()));
        long minutes = seconds / 60;
        long hours = minutes / 60;

        String timestr = "";
        if (seconds < 60) {
            timestr = seconds + "s ago";
        } else if ((minutes >= 1) && (minutes < 60)) {
            timestr = minutes + "min ago";
        } else if ((hours >= 1 && (hours < 24))) {
            timestr = hours + "h " + (minutes % 60) + "min ago ";
        } else {/*from   w  w  w  .j  av a 2  s .com*/
            Calendar cal1 = Calendar.getInstance();
            cal1.add(Calendar.DATE, -1); // For tomorrow
            cal1.set(Calendar.HOUR_OF_DAY, 24);
            cal1.set(Calendar.MINUTE, 0);

            Calendar cal2 = Calendar.getInstance();
            cal2.add(Calendar.DATE, -2); // For tomorrow
            cal2.set(Calendar.HOUR_OF_DAY, 24);
            cal2.set(Calendar.MINUTE, 0);

            if (cal2.before(value) && cal1.after(value)) {
                timestr = "yesterday";
            }
        }
        if (!timestr.equals("")) {
            return dateformat.format(value) + " (" + timestr + ")";
        } else {
            return dateformat.format(value);
        }
    }
}

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