Calendar c = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String strDate = sdf.format(c.getTime());
Log.d("Date","DATE : " + strDate)import java.time.*;
LocalDate date = LocalDate.now();String currentDateTimeString = java.text.DateFormat.getDateTimeInstance().format(new Date());
// textView is the TextView view that should display it
textView.setText(currentDateTimeString);String date = new SimpleDateFormat("yyyy-MM-dd", Locale.getDefault()).format(new Date());import java.time.*;
LocalDateTime datetime = LocalDateTime.now(); SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy_HHmmss", Locale.getDefault());
String currentDateandTime = sdf.format(new Date());
System.out.println("currentDateandTime" + currentDateandTime);