Scroll doesn't show

Question

This is my code:

   JTextArea textArea = new JTextArea(15, 20);
   JScrollPane s = new JScrollPane(textArea,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
   JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

And I'm adding the text area:

  add(textArea);

Answer 1

将JScrollPane而不是JTextArea添加到您的容器中：

add(s);