Example 1: Java Program to calculate the method execution time
Output
Calculating Method execution time: Execution time: 656100 nanoseconds
In the above example, we have created a method named display(). The method prints a statement to the console. The program calculates the execution time of the method display().
Here, we have used the method nanoTime() of the System class. The nanoTime() method returns the current value of the running JVM in nanoseconds.
Example 2: Calculate the execution time of Recursive method
Output
Execution time of Recursive Method is 18600 nanoseconds
In the above example, we are calculating the execution time of recursive method named factorial().