How can I generate random numbers between 0 and a user input number?

Question

I'm pretty new to Java and this website, and I'm sorry if this question has already been asked but if it isn't to hard, an answer would be extremely helpful.

Answer 1

Psuedocode

import java.util.Random;
import java.util.Scanner;

...

private Random rand = new Random();
private Scanner scan = new Scanner();

...

public static int randomInt() {
    return rand.nextInt(scan.nextInt());
}