How do I create my own world seed?

I really want a superflat seed with a ton of useful ores which are easy to find. How do I create a seed, and what programs do I use?

Solution 1:

Seeds are not “created”, they are found by trying them. The seed is called that because it is the seed value for a pseudorandom number generator which is then used to determine all of the attributes of the world; it is computationally infeasible to design a seed to produce a desired result.

Type something for the seed, see if you like the world, and if not, try again with a different seed. Or look for seeds other people have tried; there are many web sites which claim to provide such information.

Solution 2:

Get pocketinveditor off of for shared. Do edit terrain and click slect whole worl replace blocks then click the top browse button and click air. Then the bottom browse button and click what ever youwant to be super flat like diamonds grass sand stone all of that hope this helped!