[Solved] How to make a JOptionPane scrollable?

Here are  the steps for making a JOptionPane scrollable.

1. Create a JTextArea with fixed rows and columns to hold your text information.

      String message = <my long message to display>

      JTextArea textArea = new JTextArea(messate, <rows>,  <columns>);
     
      It is very critical to set the rows and columns. They determine the size of the view in the JOptionPane.

2. Create a JScrollPane which has the JTextArea as the view port.

      JScrollPane sp = new JScrollPane(textArea);
      sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

3. Create the JOptionPane using the JScrollPane as its displaying component

      JOptionPane.showMessageDialog(null, sp);

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