| Package | Description | 
|---|---|
| org.bukkit | More generalized classes in the API. | 
| org.bukkit.block | Classes used to manipulate the voxels in a  world,
 including special states. | 
| org.bukkit.entity | Interfaces for non-voxel objects that can exist in a  world, including all players, monsters, projectiles, etc. | 
| org.bukkit.inventory | Classes involved in manipulating player inventories and item interactions. | 
| org.bukkit.material | Classes that represents various voxel types and states. | 
| Class and Description | 
|---|
| MaterialData Handles specific metadata for certain items or blocks | 
| Class and Description | 
|---|
| MaterialData Handles specific metadata for certain items or blocks | 
| Class and Description | 
|---|
| Attachable Indicates that a block can be attached to another block | 
| Colorable An object that can be colored. | 
| Directional | 
| MaterialData Handles specific metadata for certain items or blocks | 
| Class and Description | 
|---|
| MaterialData Handles specific metadata for certain items or blocks | 
| Class and Description | 
|---|
| Attachable Indicates that a block can be attached to another block | 
| Banner | 
| Bed Represents a bed. | 
| Button Represents a button | 
| Cake | 
| Cauldron Represents a cauldron | 
| Chest Represents a chest | 
| Coal Represents the different types of coals. | 
| CocoaPlant Represents the cocoa plant | 
| CocoaPlant.CocoaPlantSize | 
| Colorable An object that can be colored. | 
| Command Represents a command block | 
| Crops Represents the different types of crops. | 
| DetectorRail Represents a detector rail | 
| Diode | 
| Directional | 
| DirectionalContainer Represents a furnace or a dispenser. | 
| Dispenser Represents a dispenser. | 
| Door Deprecated. 
 No longer functions. Do not use. | 
| Dye Represents dye | 
| EnderChest Represents an ender chest | 
| ExtendedRails This is the superclass for the  DetectorRailandPoweredRailclasses | 
| FlowerPot Represents a flower pot. | 
| Furnace Represents a furnace. | 
| FurnaceAndDispenser Represents a furnace or dispenser, two types of directional containers | 
| Gate Represents a fence gate | 
| Ladder Represents Ladder data | 
| Leaves Represents the different types of leaves. | 
| Lever Represents a lever | 
| LongGrass Represents the different types of long grasses. | 
| MaterialData Handles specific metadata for certain items or blocks | 
| MonsterEggs Represents the different types of monster eggs | 
| Mushroom Represents a huge mushroom block | 
| NetherWarts Represents nether wart | 
| Openable | 
| PistonBaseMaterial Material data for the piston base block | 
| PistonExtensionMaterial Material data for the piston extension block | 
| PoweredRail Represents a powered rail | 
| PressurePlate Represents a pressure plate | 
| PressureSensor | 
| Pumpkin Represents a pumpkin. | 
| Rails Represents minecart rails. | 
| Redstone Indicated a Material that may carry or create a Redstone current | 
| RedstoneTorch Represents a redstone torch | 
| RedstoneWire Represents redstone wire | 
| Sandstone Represents the different types of sandstone. | 
| Sign MaterialData for signs | 
| SimpleAttachableMaterialData Simple utility class for attachable MaterialData subclasses | 
| Skull Represents a skull. | 
| SmoothBrick Represents the different types of smooth bricks. | 
| SpawnEgg Represents a spawn egg that can be used to spawn mobs | 
| Stairs Represents stairs. | 
| Step Represents the different types of steps. | 
| TexturedMaterial Represents textured materials like steps and smooth bricks | 
| Torch MaterialData for torches | 
| TrapDoor Represents a trap door | 
| Tree Represents the different types of Trees. | 
| Tripwire Represents the tripwire | 
| TripwireHook Represents the tripwire hook | 
| Vine Represents a vine | 
| WoodenStep Represents the different types of wooden steps. | 
| Wool Represents a Wool/Cloth block | 
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