Right click on the fluid you want to place in the bucket, or on a cow to fill it with milk.
You can use up to three full buckets of water on it, to fill it.
Eventually
Eventually, yes.
You can fill the up with blocks or you can collect it using buckets.
Iron armor, buckets, anything with iron.
You can't MAKE one, but you can collect lava with buckets.
It will be out at the end of April. The new update will have redstone, Enderman, and buckets.
You right click whatever you want to place. You can place swords, buckets, arrows, etc.
It is only possible to move water by the use of buckets in creative. Even though sponges are an available item to select in the creative mode menu, they do not have the feature of soaking up water. That feature is only possible in Minecraft Classic.
buckets
Heres the crafting table recipe B = Nothing I = Iron B B B I B I B I B
buckets