You could have used another Date object to convert the milliseconds different
Code:
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public String countTime (String inTime, String outTime) {
SimpleDateFormat format;
try {
format = new SimpleDateFormat("HH:mm:ss");
Date time1 = format.parse(inTime);
Date time2 = format.parse(outTime);
long difference = time2.getTime() - time1.getTime();
format = new SimpleDateFormat("HH:mm");
Date resultdate = new Date(difference);
return format.format(resultdate);
} catch (ParseException ex) {
ex.printStackTrace();
}
return "";
}
