title: What do these numbers in Android logcat mean?
body: <pre><code>10-21 10:37:32.821  18142-18297/com.myapp.debug D/[111] SqLiteHelper insertArrayList﹕ Start
  10-21 10:37:33.422  18142-18291/com.myapp.debug D/[128] SqLiteHelper insertArrayList﹕ Finish
  10-21 10:37:33.452  18142-18142/com.myapp.debug D/[89] Screen1 onPause﹕ SQLite db closing
  </code></pre>
  
  <p>These are typical lines from my Android app log.</p>
  
  <ol>
  <li>Time (October 21 10:37 am)</li>
  <li>Mysterious numbers separated by a dash</li>
  <li>application package (com.myapp.debug)</li>
  <li>Log type (debug)</li>
  <li>Header (lineNum, Activity &amp; Method)</li>
  <li>Body</li>
  </ol>
  
  <p>So these mysterious numbers - are they thread IDs? user IDs? Process IDs? Why do they sometimes change? Why are there 2 of them that are sometimes the same?</p>
  
  <p>Update: Calling the "Log.d(Header,Body)" function. Using Android Studio.</p>