title: Comparing a char with multiple characters
body: <pre><code>for(int j=0 ; j&lt;str.length() ; j++) {
      if(char[j]==(a||e||i||o||u))
          count++;
  }
  </code></pre>
  
  <p>I know the result of <code>(a||e||i||o||u)</code> is a Boolean so can't compare but how can we check for multiple character presence?</p>