title: What is the rule of the name of the packages that start with number?
body: <p>The package naming convention in Android is:</p>
  
  <pre><code>com.organizationName.appName
  </code></pre>
  
  <p>But if the organizationName or the appName starts with a number or underscore, it becomes a invalid name, since android doesn't accept words that start with number or underscore.</p>
  
  <p>For example:</p>
  
  <p><code>com.1organizationName.appName</code> is invalid</p>
  
  <p>What is the convention to rename this package?</p>