: String
  required: @Regex String
1 errors
</pre>

        <p>The "incompatible types" warning indicates that variable
        <code>regex</code> is not of type <code>@Regex String</code> which
        is required for strings passed to <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/regex/Pattern.html#compile(java.lang.String)"><code>Pattern.compile()</code></a>.</p>
      </div>

      <div id="validate">
        <h4>4. Fix the Code</h4>

        <p>The right way to fix the