title: Saving parameters in a file
body: <p>I want to use a .properties file to store some parameters with values. I also want to use these parameters as class attributes in my code. How to avoid a situation where I need to define the attributes and use their names as string keys for the .properties file. I have these names twice in my code: once as an attribute and once as a string.</p>
  
  <p>Reflection would help, but there is no reflection for attribute names.</p>