title: Where is the Sonar "duplicated code" here?
body: <p>I just run sonar scanner on the sample Sonar project. It gives me the message that there is "duplicated code on lines 7-20". Can anyone explain this?</p>
  
  <p><a href="https://i.stack.imgur.com/WnMm8.png" rel="noreferrer"><img src="https://i.stack.imgur.com/WnMm8.png" alt="enter image description here"></a>  </p>