JScrollPane component change

Question

i have a JScrollPane. But default it displays JTextArea.

JTextArea jTextArea = new JTextArea();
JScrollPane pane = new JScrollPane(jTextArea);

so here everything is fine. But now i would like to change JScrollPane component by user action:

pane.remove(jTextArea);
pane.add(new JTable(data[][], columns[]));
pane.revalidate();
frame.repaint();

frame in my main Window. JScrollPane is added to main window with GridBagLayout. But this doesn't work. After running action JScrollPane becomes grey.

Answer 1

jScrollPane.getViewport().remove/add

Answer 2

One alternative is to put a JPanel with a CardLayout¹ into the JScrollPane, add both the components to the panel, then simply flip between the text area and table as needed.

1. How to Use CardLayout

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Given the components might be of vastly different size, it might be better to do it this way:

JPanel with CardLayout contains many JScrollPane instances, each of which contains a single component. That will also work inherently better for a JTable.