How to fetch recent seven days from specific date

Question

If the date is 2017-03-30 that i want to fetch the date from 2017-03-23 to 2017-03-30

I try to use this code let my String change to Date format

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

Date dateParse = sdf.parse("2017-03-30");

then i'm stuck , cause i take the reference is get the current time like this

Calendar c = Calendar.getInstance();
c.add(Calendar.DATE, -7);
//may be my dateParse should put here , but i don't know how to do
Date monday = c.getTime();//it get the current time
String preMonday = sdf.format(monday);

Is any one can teach me how to fetch these seven days ? Thanks in advance.

score 2 · Answer 1 · answered Apr 06 '17 at 07:13

2

You can use the code below

  SimpleDateFormatdateFormat = new SimpleDateFormat("dd MMM yyyy");
        Calendar c = Calendar.getInstance();
       String date = dateFormat.format(c.getTime());

  c.add(Calendar.DATE, 7);
        String date1 = dateFormat.format(c.getTime());

answered Apr 06 '17 at 07:13

Deepali-Systematix

168
1
8

thanks man , but your code just like my question , the date is current date not my specific date. – Morton Apr 06 '17 at 07:18
This can help u get the current date String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date()); – Deepali-Systematix Apr 06 '17 at 09:04
thanks for your enthusiam , i get the solution now , thank you. – Morton Apr 06 '17 at 09:23

score 1 · Accepted Answer · edited May 23 '17 at 12:32

1

Parse the date:

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date myDate = sdf.parse("2017-03-30");

First Solution 1) And then either figure out how many milliseconds you need to subtract:

Date newDate = new Date(myDate.getTime() - 604800000L); // 7 * 24 * 60 * 60 * 1000

Second Solution 2) Or use the API provided by the java.util.Calendar class:

Calendar calendar = Calendar.getInstance();
calendar.setTime(myDate);
calendar.add(Calendar.DAY_OF_YEAR, -7);
Date newDate = calendar.getTime();

Then, if you need to, convert it back to a String:

String date = dateFormat.format(newDate);

This answer is from here

EDIT: If you need output as 2017-03-29 2017-03-28 2017-03-27 ...... 2017-03-23 then try below code

for(int i = 1; i <= 7; i++){
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(myDate);
    calendar.add(Calendar.DAY_OF_YEAR, -i);
    Date newDate = calendar.getTime();
    String date = dateFormat.format(newDate);
    //here in date you can get all date from and output as 2017-03-29 2017-03-28 2017-03-27 ...... 2017-03-23
}

Hope you need this

edited May 23 '17 at 12:32

Community

1
1

answered Apr 06 '17 at 06:51

Zaki Pathan

1,762
1
13
26

thanks for your information , but i got confused about the variable newDate. There is two newDate , which the newDate use for `String date = dateFormat.format(newDate);` ? – Morton Apr 06 '17 at 07:15
I try the first newDate that the result date is `2017-03-23` , i just get a day , can i get seven days ? – Morton Apr 06 '17 at 07:21
check my edited answer bro. There is two solutions please check. If you get any problem please ask freely I will help you @徐博俊 – Zaki Pathan Apr 06 '17 at 08:21
you need all 7 days? What you need I can't understand properly – Zaki Pathan Apr 06 '17 at 08:22
You need output as 2017-03-29 2017-03-28 2017-03-27 ...... 2017-03-23? or something else? – Zaki Pathan Apr 06 '17 at 08:23
Yes , i want the values which is 2017-03-29 2017-03-28 2017-03-27 ...... 2017-03-23 , my reason is that i parse json and i want to set `if-else` for specific day – Morton Apr 06 '17 at 09:03
thanks you so much , the answer is more easier to understand now. – Morton Apr 06 '17 at 09:06
Happy to help you brother :) :) – Zaki Pathan Apr 06 '17 at 09:07

How to fetch recent seven days from specific date

2 Answers2