what is "Array" in c# code example

Example 1: c# array

int[] array = new int[]{1, 2, 3, 4, 5};
foreach (string i in array) 
{
  Console.WriteLine(i);
}

//or

for(int i=0; i<array.Length; i++){
	  Console.WriteLine(array[i]);
}

Example 2: c# array

float[] array = new float[] { 1f, 5f, 4f, 3f };