title: String + variable how?
body: <p>Im a beginner learning Qt/C++
  and I got into an error:
  I wanted to know how can I put a variable in this case "username" next to a string in the lines below.</p>
  
  <pre><code>QString username = ui-&gt;lineEdit-&gt;text();
  
  QMessageBox msgBox;
  msgBox.setText("Your username is: " VARIABLEHERE);
  msgBox.exec();
  </code></pre>
  
  <p>So how to line it or should I use other function ? than msgBox.setText()</p>