What is this N mean? In java

import java.util.Scanner;

import edhesive.testing.Math;

public U2_L8_Activity_One{

   public static void main(String[] args) {

       Scanner myObj = new Scanner(System.in);

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

       int n = myObj.nextInt();

       for (int i = 0; i < 10; i++){

           System.out.println((int) (Math.random()*n));

       }

   }

}

I hope this helps!

we need a link or picture : )