Question

How to set int array to all zero with clear method in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 1, 2, 3, 4, 5, 6 };

            Console.WriteLine("Before Clear");
            foreach (int value in arr)
                Console.WriteLine(value);
            
            Array.Clear(arr, 0, arr.Length);

            Console.WriteLine("After Clear");
            foreach (int value in arr)
                Console.WriteLine(value);
        }
    }
}

/*
run:
  
Before Clear
1
2
3
4
5
6
After Clear
0
0
0
0
0
0

*/

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Answer 2

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 1, 2, 3, 4, 5, 6 };

            Console.WriteLine("Before Clear");
            foreach (int value in arr)
                Console.WriteLine(value);
            
            Array.Clear(arr, 1, 3);

            Console.WriteLine("After Clear");
            foreach (int value in arr)
                Console.WriteLine(value);
        }
    }
}

/*
run:
  
Before Clear
1
2
3
4
5
6
After Clear
1
0
0
0
5
6

*/

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