title: How should I get mentioned strings from my messge?
body: <p>I don't know if this is the right question or not but I want to get string from special character.</p>
  
  <p>Example:</p>
  
  <pre><code>Hi this is #myFirst post on This #StackExchange.
  </code></pre>
  
  <p>I want to output <code>#myFirst</code> and <code>#StackExchange</code>.</p>
  
  <p>I tried </p>
  
  <pre><code>(.*#[a-zA-Z_0-9])+\\w+
  </code></pre>
  
  <p>However, it gives me whole string.</p>