import net.minecraft.block.BlockState; import net.minecraft.util.math.BlockPos; import net.minecraft.world.World; // ... public boolean canBlockSupportOthers(World world, BlockPos pos) { BlockState state = world.getBlockState(pos); return state.getBlock().doesBlockHaveSolidTopSurface(state, world, pos); }In this example, we define a method that takes a World object and a BlockPos (position) and returns whether the block at that position has a solid top surface. We use the getBlockState method to retrieve the BlockState object for that position, and then call doesBlockHaveSolidTopSurface on the block itself. Note that we need to import the net.minecraft.block.BlockState and net.minecraft.util.math.BlockPos classes in order to use them in our code. These classes are also part of the Minecraft game system and provide various utility methods for working with blocks and positions. Overall, the net.minecraft.world package provides a powerful set of classes and methods for managing and manipulating the game world in Minecraft, and doesBlockHaveSolidTopSurface is just one example of the many tools available to game developers.