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I can't seem to find an answer to this on stackoverflow or at the javadoc site. It's probably very trivial. Could someone help?
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You need to use setOpaque(false) to make it transparent. Call that both on the JScrollPane, and on it's ViewPort. sp. setOpaque(false); sp.
What is the difference between a Scrollbar and a JScrollPane ? A Scrollbar is a Component, but not a Container. A ScrollPane is a Container. A ScrollPane handles its own events and performs its own scrolling.
I think with setHorizontalScrollBarpolicy() you can set scrollbar apperance means when you want to display your scrollbar like JScrollPane.VERTICAL_SCROLLBAR_ALWAYS displays vertical scrollbar always and so on.. This may help you.
JScrollPane jsp = new JScrollPane(lista);
jsp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
jsp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scrollpane.setHorizontalScrollBarPolicy(...)
scrollpane.setVerticalScrollBarPolicy(...)
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