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java Programming Glossary: time2Java NIO FileChannel versus FileOutputstream performance / usefulness http://stackoverflow.com/questions/1605332/java-nio-filechannel-versus-fileoutputstream-performance-usefulness 1 fos.write buf 0 len fos.flush fos.close is.close long time2 System.currentTimeMillis System.out.println Time taken time2.. System.currentTimeMillis System.out.println Time taken time2 time1 ms private static void useFileChannel throws Exception.. 1 buf.flip f2.write buf buf.clear f2.close f.close long time2 System.currentTimeMillis System.out.println Time taken time2..
http://stackoverflow.com/questions/18119665/geting-duration-of-2-times two given times @param time1 yyyymmddThhmmss @param time2 yyyymmddThhmmss @return minutes between time1 and time2 public.. time2 yyyymmddThhmmss @return minutes between time1 and time2 public static int getDuration String time1 String time2 int.. time2 public static int getDuration String time1 String time2 int yyyy1 Integer.parseInt time1.substring 0 4 int mm1 Integer.parseInt..
Sort a two dimensional array based on one column http://stackoverflow.com/questions/4907683/sort-a-two-dimensional-array-based-on-one-column String entry2 final String time1 entry1 0 final String time2 entry2 0 return time1.compareTo time2 for final String s.. 0 final String time2 entry2 0 return time1.compareTo time2 for final String s data System.out.println s 0 s 1 Output..
How to calculate time difference in java? http://stackoverflow.com/questions/4927856/how-to-calculate-time-difference-in-java share improve this question String time1 16 00 00 String time2 19 00 00 SimpleDateFormat format new SimpleDateFormat HH mm.. ss Date date1 format.parse time1 Date date2 format.parse time2 long difference date2.getTime date1.getTime Difference is in..
Is System.nanoTime() completely useless? http://stackoverflow.com/questions/510462/is-system-nanotime-completely-useless measure time of a call long time1 System.nanotime foo long time2 System.nanotime long timeSpent time2 time1 Now in a multi core.. foo long time2 System.nanotime long timeSpent time2 time1 Now in a multi core system it could be that after measuring.. that of the previous cpu. Thus we could get a value in time2 which is less than time1. Thus we would get a negative value..
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