Convert String to timestamp and compare with current system time

Question

Here is my string:

2015,10,10,4,22,51

How can I convert this string to timestamp such as:

1447125771290

to compare with

long currentTime = System.currentTimeMillis();

Or any suggestions to compare with current system time?

Answer 1

I think this would help you:

String timestamp = "2015,10,10,04,22,51";
DateFormat df = new SimpleDateFormat("yyyy,MM,dd,hh,mm,ss");
Date parsedDate = df.parse(timestamp);

And compare it with current date:

DateFormat dateFormat = new SimpleDateFormat("yyyy,MM,dd,hh,mm,ss");
Date date = new Date();

And here is how to compare:

public Date compareTime(Date date) {    
Calendar cal = Calendar.getInstance();  
cal.setTime(date);  
cal.set(Calendar.HOUR_OF_DAY, 0);  
cal.set(Calendar.MINUTE, 0);  
cal.set(Calendar.SECOND, 0);  
cal.set(Calendar.MILLISECOND, 0);  
return cal.getTime(); 
}

And the use above method like this:

if (compareTime(parsedDate).equals(date)

Another way to compare dates using Date class:

switch (date.compareTo(parsedDate)) {
case -1:  Log.i("CompareDates","today is sooner than parsedDate");  break;
case 0:   Log.i("CompareDates","today and parsedDateare equal");  break;
case 1:   Log.i("CompareDates","today is later than parsedDate");  break;
default:  Log.i("CompareDates","Invalid results from date comparison"); break;
}