title: How to check if a Stream<String> contains another Stream<String> in Java 8
body: <p>I created two Stream </p>
  
  <pre><code>Stream&lt;String&gt; first= ...
  Stream&lt;String&gt; second= ...
  </code></pre>
  
  <p>Both of them have numbers. Let's say the first file has 1 to 1000 and the second one has 25 to 35. I'd like to check if the first one contains the numbers of the seconds one.</p>
  
  <pre><code>first.filter(s-&gt; !s.contains(second.toString())
       .collect(Collectors.toList());
  </code></pre>
  
  <p>If I replace <code>second.toString()</code> with "10" then it works but how can I check the whole stream and not only a char or a string? </p>