title: Implementing VBA's Sheet.range() function in Apache POI
body: <p>All:</p>
  
  <p>I am pretty new to Apache POI, as the title said, I want to find according API of that Range() function, or APIs that can work together to build that function, for example:</p>
  
  <p>In VBA:</p>
  
  <pre><code>Application.getSheets("Sheet1").Range("A2:F3")
  </code></pre>
  
  <p>In POI, after I get the sheet, I am not sure what is best way to implement that Range():</p>
  
  <pre><code>new WorkBook(/* excel file input stream*/).getSheet("Sheet1") // then what?
  </code></pre>