How to get custom space between Jlist item?

Question

I have added few images to my JList showing them horizontally.

Now I want to increase the space between the images in the JList.

Could anyone suggest how to do it?

Answer 1

Provide your own ListCellRenderer which can introduce, e.g., an empty border with a specific width.

Answer 2

Set a fixed width and height for your JList items.

list.setFixedCellHeight(50);
list.setFixedCellWidth(100);

The setBorder() method is for setting border insets. You can also add it to the lines above to make margin spaces arranged:

list.setBorder(new EmptyBorder(10,10, 10, 10));