Declaring


Fixed Size Arrays

In C# the number inside the bracket represents the number of items in the array

int[] myArray1 = new int[3] { 1, 2, 3 }; 

int[] myArray2 = new int[] { 1, 2, 3 };

int[] myArray3 = { 1, 2, 3 };

var myArray4 = new[] {1, 2, 3}; // implicitly typed, inferred from items

System.Array myArray5 = System.Array.CreateInstance(typeof(System.Int32), 3);

When isize = 5, there are 5 elements, myArray(0) to myArray(4).

long[] myArray = new long[5]; 

int isize = 5;
long[] myArray = new long[isize];

long[] myArray = new long[3]; 
myArray[0] = 5;
myArray[1] = 10;
myArray.SetValue(15,2);


Not Zero Based

//1 dimensional - zero based 
System.Array i2 = Array.CreateInstance(typeof(int), new int[] { 2 }, new int[] { 100 });

//1 dimensional - non zero based
System.Array myArray = Array.CreateInstance(typeof(double), new int[1] { 12 }, new int[1] { 1 });



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