JAVA : Get a wrong current time - date

Question

i try to get the current time like that :
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Calendar cal = Calendar.getInstance();
String sendingDateAndTime = dateFormat.format(cal.getTime()).trim();
but i get the GMT time when i want the system time (and not the local time because my software will be executed in several countries so i can use the TimeZone object).
I need to use the date library and the GregorianCalendar library but i get the same wrong result.
Many people have the same problem but all the solution that i saw it's to put hard code like "Europe" or something else in the timezone object.
If someone can help you.
Thankssss
---------------------------- UPDATE ------------------------------------
I tried to use the System.currentTimeMillis() and to give it as parameter to calendar object, but i get the GMT time too

Answer 1

How about this for the GMT time?
Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
And this for the local computer time?
Calendar calendar = Calendar.getInstance();
DateFormat will default to the local time zone. The internal format of a Calendar object is the number of milliseconds past midnight, January 1, 1970, GMT.
Edited to add: When I run this code, I get my local time.
public static void main (String[] args) {
Calendar calendar = Calendar.getInstance();
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss z");
String sendingDateAndTime = dateFormat.format(calendar.getTime());
System.out.println(sendingDateAndTime);
}
When I run this code, I get GMT, although the time zone is still my local time zone.
public static void main (String[] args) {
Calendar calendar = Calendar.getInstance();
TimeZone timeZone = calendar.getTimeZone();
int offsetFromUTC = timeZone.getOffset(calendar.getTimeInMillis());
calendar.add(Calendar.MILLISECOND, -offsetFromUTC);
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss z");
String sendingDateAndTime = dateFormat.format(calendar.getTime());
System.out.println(sendingDateAndTime);
}