title: whats the difference between poll() and pop() for linkedlist in java?
body: <p>I recently found there are two similar methods for linkedlist in java API, they all delete the first node and return it. I wrote the following codes to test and they did exactly same thing.Do they really work exactly same?</p>
  
  <pre><code>    test.add(1);
      test.add(2);
      test.add(3);
      System.out.println(test.pop());
      for(int i = 0; i &lt; test.size();i++ ){
          System.out.print(test.get(i) + " ");
      }
      System.out.println("");
      System.out.println(test.poll());
      for(int i = 0; i &lt; test.size();i++ ){
          System.out.print(test.get(i) + " ");
      }
      System.out.println("");
  </code></pre>
  
  <p>Thanks!!!</p>