Java newbie question

Question

So i basically want to make a game and part of that requires me to be able to make a list of different classes and randomly pick one of those classes I'm fairly new to java I've done the tutorial a few months ago but this is my first actual coding attempt in java

Answer 1

Generics provide a way to store objects of different classes in one collection, thought this might be useful for you.

As for the random choice of an element of a collection:
Use Math.random() to get a random double from 0 to length of the collection-1. Then cast it to int and take the element with that index, example:

int index; // use Math.random() as described
for (Object o: yourSet) {
if (o.equals(index))
// do whatever you like
}

Answer 2

This generic tutorial might be helpful for you ;)
If you have any further questions, just ask.
https://docs.oracle.com/javase/tutorial/java/generics/index.html

Answer 3

oh awesome thank you!!

Answer 4

Oh i don't have any errors I'm just not sure how you randomly pick a class from a set of classes