Java Date Compare compareDate(Date date1, Date date2)

Description

compare Date

License

Open Source License

Declaration

public static String compareDate(Date date1, Date date2) 

Method Source Code

//package com.java2s;

import java.text.SimpleDateFormat;

import java.util.Date;

public class Main {

    public static String compareDate(String yyyyMMddHHmmss1, String yyyyMMddHHmmss2) {
        long d1 = getMillins(yyyyMMddHHmmss1);
        long d2 = getMillins(yyyyMMddHHmmss2);
        long tmp = (d1 > d2) ? (d1 - d2) : (d2 - d1);
        int day = 0, hour = 0, min = 0, sec = 0;
        for (; tmp >= 24 * 60 * 60 * 1000; tmp -= 24 * 60 * 60 * 1000, day++)
            ;/*from ww  w .  j a  v a2s. c  om*/
        for (; tmp >= 60 * 60 * 1000; tmp -= 60 * 60 * 1000, hour++)
            ;
        for (; tmp >= 60 * 1000; tmp -= 60 * 1000, min++)
            ;
        for (; tmp >= 60; tmp -= 60, sec++)
            ;
        return String.valueOf(day) + "," + String.valueOf(hour) + "," + String.valueOf(min) + ","
                + String.valueOf(sec) + "," + String.valueOf(tmp);
    }

    public static String compareDate(Date date1, Date date2) {
        if (date1 == null || date2 == null)
            return null;
        java.util.Calendar c = java.util.Calendar.getInstance();
        c.setTime(date1);
        long d1 = c.getTimeInMillis();
        c.setTime(date2);
        long d2 = c.getTimeInMillis();
        long tmp = (d1 > d2) ? (d1 - d2) : (d2 - d1);
        int day = 0, hour = 0, min = 0, sec = 0;
        for (; tmp >= 24 * 60 * 60 * 1000; tmp -= 24 * 60 * 60 * 1000, day++)
            ;
        for (; tmp >= 60 * 60 * 1000; tmp -= 60 * 60 * 1000, hour++)
            ;
        for (; tmp >= 60 * 1000; tmp -= 60 * 1000, min++)
            ;
        for (; tmp >= 60; tmp -= 60, sec++)
            ;
        return String.valueOf(day) + "," + String.valueOf(hour) + "," + String.valueOf(min) + ","
                + String.valueOf(sec) + "," + String.valueOf(tmp);
    }

    public static long getMillins(String yyyyMMddHHmmss) {
        long d = 0;
        try {
            java.util.Date date = new java.util.Date();
            java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat("yyyyMMddhhmmss");
            date = formatter.parse(yyyyMMddHHmmss);
            java.util.Calendar c = java.util.Calendar.getInstance();
            c.setTime(date);
            d = c.getTimeInMillis();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return d;
    }

    public static String getMillins(long yyyyMMddHHmmss) {
        String d = new String();
        try {
            java.util.Date date = new java.util.Date();
            date.setTime(yyyyMMddHHmmss);
            d = new SimpleDateFormat("yyyyMMddHHmmss").format(date);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return d;
    }
}

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