What kind of grammar it is in Android?
<pre><code>Dialog dialog = new AlertDialog.Builder(Activity01.this)
                .setTitle("Login hint")
                .setMessage("Here needs your login!")
                .setPositiveButton(...)
                .setNeutralButton(...
                ).create();
</code></pre>

<p>What kind of grammar it is? I cannot understand why those dots are one by one? And the <code>create()</code> is for <code>Builder()</code> or for <code>setNeutralButton()</code>? </p>

<p>Thanks!</p>
