Change timestamp by adding seconds in Java
1) Using Timestamp long myDate= System.currentTimeMillis(); int sec = 300; Timestamp originalTime = new Timestamp(myDate); Calendar calender = Calendar.getInstance(); calender.setTimeInMillis(originalTime.getTime()); calender.add(Calendar.SECOND, sec); Timestamp afterAdd = new Timestamp(calender.getTime().getTime()); System.out.println(originalTime); System.out.println(afterAdd); 2) Using given date public void addTimeBySecondsDemo(Date date,int sec) { //int sec = 300; System.out.println("Given date:"+date); Calendar calender...