How to clear an array

I have a global variable int[] and I want to clear its data and fill i开发者_如何学JAVAt again in a loop.

How could this possible in C#?

The static Array.Clear() method "sets a range of elements in the Array to zero, to false, or to Nothing, depending on the element type". If you want to clear your entire array, you could use this method an provide it 0 as start index and myArray.Length as length:

Array.Clear(myArray, 0, myArray.Length);

This is not correct answer for your post but you can use this logic according to your need. Here is a code Snippets taken from here

using System;

class ArrayClear
{

   public static void Main()
   {
      int[] integers = { 1, 2, 3, 4, 5 };
      DumpArray ("Before: ", integers);
      Array.Clear (integers, 1, 3);
      DumpArray ("After:  ", integers);
   }

   public static void DumpArray (string title, int[] a)
   {
      Console.Write (title);
      for (int i = 0; i < a.Length; i++ )
      {
         Console.Write("[{0}]: {1, -5}", i, a[i]);
      }
      Console.WriteLine();
   }
}

and output of this is:

Before: [0]: 1    [1]: 2    [2]: 3    [3]: 4    [4]: 5
After:  [0]: 1    [1]: 0    [2]: 0    [3]: 0    [4]: 5

Why not just create new array and assign it to existing array variable?

x = new int[x.length];

Wouldnt it be easier to use a list instead.

public List<int> something = new List<int>();

And then:

something.Add(somevalue);

And to clear:

something.Clear();

  int[] x 
  int[] array_of_new_values

  for(int i = 0 ; i < x.Length && i < array_of_new_values.Length ;i++)
  {
        x[i] = array_of_new_values[i]; // this will give x[i] its new value
  }

Why clear it? Just assign new values.

For two dimensional arrays, you should do as bellow:

Array.Clear(myArray, 0, myArray.GetLength(0)*myArray.GetLength(1));