Best method to craft arrows in minecraft?

honestly once you're past the early game, skeletons. find a dungeon with a skeleton spawner, make a basic farm around it and you'll never craft an arrow again. if you've got emeralds the fletcher sells them outright, and early on he buys sticks off you, which is a handy way to get the emeralds in the first place.

Flint on top, stick in the middle, feather at the bottom, all in one column. Gives you 4. The annoying part is the flint. Dig gravel with a shovel and you only get flint some of the time, so place the gravel back down and dig it again until it drops. A Fortune shovel speeds it up a lot. Feathers come from chickens, and a couple of chickens in a pen with seeds sorts that side out for good. Don't bother with the fletching table for this, in Java it doesn't craft anything, it's just the fletcher villager's job block.