how to convert dateformat to yyyy-mm--dd in android

String dateTime = "Sun Dec 18 00:00:00 GMT+05:30 2016";

I am getting this date i want to convert it in to YYYY-MM-dd

SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
String check = dateFormat.format(dt);
System.out.println("DATE TO FROM DATEBASE   " + 
        arrayOfStringDate[d].toString());
System.out.println("CURRENT DATE   " + check);

i am trying in this way but i am unable to get value in this format please tell me where am doing wrong how to convert

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Answer;

Please provide output ex like "2016-DEC-13". Is this what you want?

Possible duplicate of java.util.Date format conversion yyyy-mm-dd to mm-dd-yyyy

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Answer;

First use an appropriate format mask to convert your string timestamp into a Date object:

String dateTime = "Sun Dec 18 00:00:00 GMT+05:30 2016";
SimpleDateFormat sdf = new SimpleDateFormat("EEE MMM dd hh:mm:ss Z yyyy");
Date date = sdf.parse(dateTime);

Then use a second SimpleDateFormat to render that date using the format mask you actually want (yyyy-MM-dd):

SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd");
String output = sdf2.format(date);