realised : Java Glossary

by Roedy Green ©1996-2008 Canadian Mind Products
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realised: Sometimes the term displayable is used instead of realised. Realised means that the component has been painted onscreen, or is ready to be painted. The methods setVisible( true ) and pack cause a window to be realised, which in turn causes the components it contains to be realised. To realise the Component, the toolkit calls addNotify to create the peer object in the underlying native GUI, which incidentally notifies the Component (if it overrides addNotify).
You can determine if a Component has been realised yet with Component.isDisplayable.
addNotify

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