- u -

• u : net.minecraftforge.client.model.obj.TextureCoordinate
• unbreaking : net.minecraft.enchantment.Enchantment
• uncommon : net.minecraft.item.EnumRarity
• UNDEAD : net.minecraft.entity.EnumCreatureAttribute
• UNDEFINED : net.minecraft.entity.EnumCreatureAttribute
• UNDERLINE : net.minecraft.util.EnumChatFormatting
• uniqueID : net.minecraft.network.packet.Packet131MapData
• UNKNOWN : net.minecraftforge.common.ForgeDirection
• UNLOADED : cpw.mods.fml.common.LoaderState.ModState
• unloadedEntityList : net.minecraft.world.World
• UP : net.minecraft.util.EnumFacing , net.minecraftforge.common.ForgeDirection
• updateCounter : net.minecraft.client.gui.GuiIngame
• updateFrequency : net.minecraft.entity.EntityTrackerEntry
• updateLCG : net.minecraft.world.World
• updateOrRemove : net.minecraft.network.packet.Packet207SetScore
• updateSkylightColumns : net.minecraft.world.chunk.Chunk
• updateUrl : cpw.mods.fml.common.ModMetadata
• url : cpw.mods.fml.common.ModMetadata
• USE_FULLSCREEN : net.minecraft.client.settings.EnumOptions
• USE_SERVER_TEXTURES : net.minecraft.client.settings.EnumOptions
• useBlock : net.minecraftforge.event.entity.player.PlayerInteractEvent
• useDependencyInformation : cpw.mods.fml.common.ModMetadata
• useInventoryTint : net.minecraft.client.renderer.RenderBlocks
• useItem : net.minecraftforge.event.entity.player.PlayerInteractEvent
• useNeighborBrightness : net.minecraft.block.Block
• useProvidedWindowTitle : net.minecraft.network.packet.Packet100OpenWindow
• username : net.minecraft.util.Session , net.minecraft.entity.player.EntityPlayer
• uvRotateBottom : net.minecraft.client.renderer.RenderBlocks
• uvRotateEast : net.minecraft.client.renderer.RenderBlocks
• uvRotateNorth : net.minecraft.client.renderer.RenderBlocks
• uvRotateSouth : net.minecraft.client.renderer.RenderBlocks
• uvRotateTop : net.minecraft.client.renderer.RenderBlocks
• uvRotateWest : net.minecraft.client.renderer.RenderBlocks