Japanese people eat food using chopsticks. Dishes are designed to be eaten with chopsticks – food is presented in small, mouthful size pieces. Yes, even noodles can be eaten with chopsticks.
Western-style restaurants (“family” restaurants) often have spoons and forks available on the table, but many restaurants only have chopsticks at the table – you will have to ask for spoons or a fork and they may not be available.
So if you can’t use chopsticks, seriously consider learning to use them as preparation for your trip. There are lots of videos on YouTube which you can watch to learn how.
Japan Tourist Tips 