Can I use Robot Framework in my Java program?

Yes. Bold added for relevant quote from the link to the Robot Framework homepage you provided;

Robot Framework is operating system and application independent. The core framework is implemented using Python and runs also on Jython (JVM) and IronPython (.NET).

You would need to start by adding Jython (which is Python implemented in Java).

I suggest you use Maven to handle dependencies.

Use the Robotframework maven plugin that will manage the Robot Framework dependencies:

http://robotframework.org/MavenPlugin/

Afterwords, you will need to add the dependency to Selenium and SeliniumLibrary.

The Robot Framework and Selenium are both testing frameworks but very different:

• Robot Framework is used for acceptance test driven development where you write your test cases in text files that follow a special syntax to also make it readable by a program. Usually you will have to write so called glue code where you implement the generated test cases: Robot Framework translates the acceptance test text to Code that you can fill with the actual test implementation.

• Selenium is a UI testing tool which lets you implement tests against your web interface / UI on several browsers. It reflects the browsers DOM and simulates user interaction / user input.

  A Selenium test usually

  1. starts a browser via a driver (e.g. firefox driver, chrome etc.)

  2. goes to a specific url within that browser (usually localhost://... when developing)

  3. interacts with the website such as clicking a button
  4. validates the result e.g. a label shows "button was clicked"
  5. shuts down the browser

A combination of both is using Robot Framework with SeleniumLibrary which maps the keywords in a Robot test case text file to Selenium commands. See more information here:

https://blog.codecentric.de/en/2012/04/robot-framework-tutorial-a-complete-example/