Calculation of Execution /Elapsed Time in Java

Two Java function can be use to calculate the elapsed time or execuiton time in java.

1. System.currentTimeMillis()
2. System.nanoTime()

Example:

System.currentTimeMillis()

 long StartTime = System.currentTimeMillis();
 //do some tasks
 long EndTime = System.currentTimeMillis();
 long difference = EndTime - StartTime;
 
 System.out.println("Elapsed milliseconds: " + difference);

Java Date And Calendar Examples

This tutorial shows you how to work with java.util.Date and java.util.Calendar.

1. Java Date Examples

Few examples to work with Date APIs.

Example 1.1 – Convert Date to String.

 SimpleDateFormat sdf = new SimpleDateFormat("dd/M/yyyy");
 String date = sdf.format(new Date());
 System.out.println(date); //15/10/2013