title: App crashing when fetching from string ressources
body: <p>I have a string array in the string.xml ressources;</p>
  
  <pre><code>&lt;string-array name="errors_signup"&gt;
      &lt;item&gt;Successful sign up&lt;/item&gt;
      &lt;item&gt;Invalid username!\n(more than 4 characters have to be used)&lt;/item&gt;
      &lt;item&gt;Username already taken!\n(Change it)&lt;/item&gt;
      &lt;item&gt;Invalid e-mail address!&lt;/item&gt;
      &lt;item&gt;E-mail already used!\n(Choose another one)&lt;/item&gt;
      &lt;item&gt;Invalid password\n(more than 4 characters have to be used)&lt;/item&gt;
      &lt;item&gt;Couldn\'t create the account!\n(try again)&lt;/item&gt;
      &lt;item&gt;Passwords are not identical\n&lt;/item&gt;
  &lt;/string-array&gt;
  </code></pre>
  
  <p>And I am trying to fetch it by the following code:</p>
  
  <pre><code>private String [] errorsSignup = getResources().getStringArray(R.array.errors_signup);
  </code></pre>
  
  <p>Running the above code immediately crashes the app. Any explanation?
  Here is the log:</p>
  
  <pre><code>05-06 02:22:18.941: D/dalvikvm(4111): GC_EXTERNAL_ALLOC freed 111K, 47% free 2913K/5447K, external 1033K/1036K, paused 63ms
  05-06 02:22:19.066: W/dalvikvm(4111): threadid=1: thread exiting with uncaught exception (group=0x40018578)
  05-06 02:22:19.073: E/AndroidRuntime(4111): FATAL EXCEPTION: main
  05-06 02:22:19.073: E/AndroidRuntime(4111): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.CheesyDev.penpal/com.CheesyDev.penpal.A1_signup}: java.lang.NullPointerException
  </code></pre>