How do I generate random doubles in an Array?

My goal is to ask the user for an array length and generate a list of random doubles to fill that array out. I don't understand how to get Math.random into my array. I started with a different approach and scrapped it. Why does double random = Math.random() * array; not import a random generator into my array?

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

public class Average
{
  public static void main(String[] args)
  {
    /*Scanner in = new Scanner (System.in);

    System.out.println("Please enter your array size: ");
    int size = in.nextInt();
    int[] awnser = new int[size]; */
    Scanner scanner = new Scanner(System.in);

    System.out.println("Enter a number");

    double[] array = new double[scanner.nextDdouble()];
    double random = Math.random() * array;
    System.out.println(array.length);

    }
  }