A layered pane is a Swing container that provides a third dimension for positioning components: depth, also known as Z order. When adding a component to a layered pane, you specify its depth as an integer. The higher the number, closer the component is to the "top" position within the container. If components overlap, the "closer" components are drawn on top of components at a lower depth. The relationship between components at the same depth is determined by their positions within the depth.
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