converts time (in milliseconds) to human-readable format " days, hours, minutes and (z) seconds" - Java java.lang

Java examples for java.lang:Math Algorithm

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Description

converts time (in milliseconds) to human-readable format " days, hours, minutes and (z) seconds"

Demo Code


//package com.java2s;

import java.util.Date;

public class Main {
    public static void main(String[] argv) throws Exception {
        long duration = 2;
        System.out.println(millisToLongDHMS(duration));
    }// w  w w . j  av a2 s  . com

    public final static long ONE_SECOND = 1000;
    public final static long ONE_MINUTE = ONE_SECOND * 60;
    public final static long ONE_HOUR = ONE_MINUTE * 60;
    public final static long ONE_DAY = ONE_HOUR * 24;

    /**
     * converts time (in milliseconds) to human-readable format
     *  "<w> days, <x> hours, <y> minutes and (z) seconds"
     */
    public static String millisToLongDHMS(long duration) {
        if (duration > 0) {
            duration = new Date().getTime() - duration;
        }
        if (duration < 0) {
            duration = 0;
        }

        StringBuffer res = new StringBuffer();
        long temp = 0;
        if (duration >= ONE_SECOND) {
            temp = duration / ONE_DAY;
            if (temp > 0) {
                duration -= temp * ONE_DAY;
                res.append(temp).append(" day").append(temp > 1 ? "s" : "")
                        .append(duration >= ONE_MINUTE ? ", " : "");
            }

            temp = duration / ONE_HOUR;
            if (temp > 0) {
                duration -= temp * ONE_HOUR;
                res.append(temp).append(" hour")
                        .append(temp > 1 ? "s" : "")
                        .append(duration >= ONE_MINUTE ? ", " : "");
            }

            temp = duration / ONE_MINUTE;
            if (temp > 0) {
                duration -= temp * ONE_MINUTE;
                res.append(temp).append(" minute")
                        .append(temp > 1 ? "s" : "");
            }

            if (!res.toString().equals("") && duration >= ONE_SECOND) {
                res.append(" and ");
            }

            temp = duration / ONE_SECOND;
            if (temp > 0) {
                res.append(temp).append(" second")
                        .append(temp > 1 ? "s" : "");
            }
            res.append(" ago");
            return res.toString();
        } else {
            return "0 second ago";
        }
    }
}

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