title: Java version of c# Array.Copy(Array sourceArray, int sourceIndex, Array destinationArray, int destinationIndex, int length)
body: <p>I'm trying to convert some C# code to Java and I came across a line that calls this method:</p>
  
  <pre><code>Array.Copy(
      frames[row],
      0,
      concatenated,
      row*frames[row].Length,
      frames[row].Length);
  </code></pre>
  
  <p>The signature of the C# method looks like this:</p>
  
  <pre><code>Array.Copy(
      Array sourceArray,
      int sourceIndex,
      Array destinationArray,
      int destinationIndex,
      int length)
  </code></pre>
  
  <p>I'm trying to find way to do the same in Java with no luck. How can I mimic the same behavior in Java?</p>