Hello again everyone, i'm trying to make a pseudo random algorithm where you input a number(seed) and it will give u a bunch of x and y coordinated to make a good looking world. If anyone can help that would be great!

Just use a normal random number generator and run it twice and multiply the random numbers (assuming between 0 and 1) by the screen width and height.

The built in of the JDK is pretty good. Just look at that code if you really want to build your own.