how to get food

There are a lot of different foods. Could you be more specific?

You can get Rotten Flesh from Zombies and Zombie Pigmen.
You can trade for diffent types of food from Villagers.
You can grow food as crops.
You can craft food using diffent ingredients.
You can get fish from Fishing.
You can get meat from killing most animals.
You can cook most meats to get better food.

You have to hunt for food like cows pigs chickens