Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: Java
Expertise: Intermediate
Sep 8, 1999



Application Security Testing: An Integral Part of DevOps

Create an Array of Functions in Java

Java doesn't offer direct support for pointer to functions. But this does not mean that you cannot have a set of functions that can be accessed via a mapping index. The code below shows you how to create an array of functions.

First you'll need a generic Interface like:

       public interface Function 
          public void runFunction();
Then, you can have a variety of classes that implement this interface in their own way:

       class Function0 implements Function 
            public void runFunction() 
               System.out.println("Function 0 ececutes: ...");

       class Function1 implements Function 
            public void runFunction() 
               System.out.println("Function 1 ececutes: ...");
Now you just create instances of your classes and place them in an array:
         Function[] funcArray = new Function[2];
         funcArray[0] = new Function0();
         funcArray[1] = new Function1();
And, finally, to execute:

Behrouz Fallahi
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



Thanks for your registration, follow us on our social networks to keep up-to-date