2 examples I've seen in Minecraft:
Air blocks - they are blocks like any other, rather than nulls to represent a block not being present in a location
Also added in the last few versions (replacing null) - "Empty" item stacks - there is a singleton "ItemStack.EMPTY" and a method "ItemStack#isEmpty()"
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2 examples I've seen in Minecraft:
Air blocks - they are blocks like any other, rather than nulls to represent a block not being present in a location
Also added in the last few versions (replacing null) - "Empty" item stacks - there is a singleton "ItemStack.EMPTY" and a method "ItemStack#isEmpty()"