assigning to array

Question

want to assing array of int types values 10; 15; 20; 25 to marks array thats what i have done so far

 

using System;

using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp15
{
class Program
{
static void Main(string[] args)
{
int[] marks;



for (int i = 0; i < marks.Length; i++)
{
Console.Write(marks[i] + " ");
}
}
}
}