Array not printing or going into array?

so i have to generate an array (size inputted by User) with a limit of 0-9; but each time i try to Array.toString() it compiles with error even when i imported arrays(Which compiler states that i cannot import or resolved) Start

import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;
public class Frequency
{
  int var1,var2,var3,var4,max,min,var5,var6,var7,var8;
  int [] a;

  Scanner dab = new Scanner(System.in);
  public void rand()
  {
    Random rande = new Random();
    System.out.println("How many Random Values ");
    var1 = dab.nextInt();
    for (int k = 0; k > var1; k++)
    {
      a[k] = (int)(Math.random() * 10);
    }
    System.out.println(Arrays.toString(a));
  }
}

Tester:

public class FrequencyTester
{
  public static void main(String[]args)
  {
    Frequency yeet = new Frequency();
    yeet.rand();
    System.out.println("test");
  }
}