Make sure to bring a weapon or two that aren’t likely to break. Swords are a good choice because they are easy to make and do good damage. See our article on making swords in Minecraft for more information.
Be patient. You may need to kill a few zombies before you get your first potato. If you can’t see any zombies, listen for their telltale growl. If you hear it, you’re definitely close!
Be careful — at higher difficulties, it’s easier to get swamped by hordes of deadly zombies. You’ll want a few high-damage weapons before you start (armor is also a big plus).
The problem with this method is that not every map has NPC villages. If you do find one, you may be able to get a few potatoes easily, but you may want to be prepared to kill zombies if you can’t locate a village.
To convert land for farming, you’ll need to till the dirt and irrigate it with a source of water. For a good guide, see our main article on farming in Minecraft.
Get two adult pigs close to each other. Feed them both a potato (or carrot or beetroot). They should enter “love mode” — you will see a bunch of hearts appear around them. They will move close to each other. In a minute or two, a baby pig will appear.