title: How can I use a regex to match a pattern only at a specific position in the string?
body: <p>Assume 4 strings, 2 to be matched the other not:</p>
  
  <pre><code>String string1 = "Hello World View";
  String string2 = "Hello Nether World";
  String string3 = "A World You should not find";
  String string4 = "Any   World is good";
  </code></pre>
  
  <p>What regular expression will only match <code>string1</code> or <code>string4</code> where <code>World</code> starts in position
  <code>6</code>?  </p>