how to write test cases in cucumber code example

Example: how to parameterize test cases cucumber

- Parameterization is being able to
pass different test data from FEATURE FILES.
- We are able to not to "hard-code" some of the test data, 
 so that we can change it from our feature files.

Cucumber:
- By using regular expression in feature file
      ==> when user enters "myusername" and "my password"
- Configuration.properties file