How do i spawn items into the game through a block?  I currently have a block that when certain items/liquids are in it will  create something so i need that item to "pop" out of it.

I meant what should i use to do it?  Also do i have to set the nbt manually or do i just specify what item i want it to be?

Ok well then i still dont even know how to spawn an entity!

EntityItem entityitem = new EntityItem(world, x, y, z, new ItemStack(item, amount, damage));

if (!world.isRemote) { world.spawnEntityInWorld(entityitem); }

Thank you!