I have tried this question so many different ways and I keep getting an error that says "Do not call Math.random() in this course. Instead use...

I have tried this question so many different ways and I keep getting an error that says "Do not call Math.random() in this course. Instead use StdRandom" ... I need to use Math.random for the assignment though. Here is the question followed by my code. Please point out what I am doing wrong.

A program, "RanNumGen," that takes an integer command-line argument "n" that indicates the number of random numbers to generate and uses the method "Math.random()" to print uniform random values between 1 and 100 (both inclusive), and then prints the minimum and maximum value. 

• Sample runs would be as follows. 
• >java RanNumGen 5 
• 67  24  31  11  80 
• The minimum value is 11. 
• The maximum value is 80. 
• >java RanNumGen 8 
• 2  76  29  96  91  98  35  16 
• The minimum value is 2. 
• The maximum value is 98.

My Code:

public class RanNumGen

{

  public static void main(String[] args)

  {

    int n = Integer.parseInt(args[0]);

    int counter = 0; 

    int max = 100;

    int min = 0;

    int r = 0;

    int val = 0;

    //    

    while (counter < n)

    {

      r = (int) (Math.random() * (101 - 0) + 0);

      val = r;

      if (val < min) {

        min = val;

      }

      if (val > max) {

        max = val;

      }

      //

      System.out.print((r+" "));

      counter = counter + 1;

    }

    System.out.printf("%n");

    System.out.println("The minimum value is: " + min);

    System.out.println("The maximum value is: " + max);  

  }

}