While studying C#,I got the following doubt.Since arrays are reference types in C# when declared I think they are allocated on heap all the time.So when we declare array in following the ways:
int[] arr1 = {1,2,3};
int[] arr2 = new int[3] { 1, 2, 3 };
Is there any difference between them?
And can we declare array int arr[100]; like in C++?(without initializing and without using new keyword)And then assign them value later.
Its the array initialization syntax
int[] arr1 = {1,2,3};
int[] arr2 = new int[3] { 1, 2, 3 };
int[] arr2 = new int[] { 1, 2, 3 };
they are the same. In this case...
int[] arr2 = new int[3] { 1, 2, 3 };
since you declared the size[3] after you must match the quantity.
check this tutorial http://msdn.microsoft.com/en-us/library/aa288453(v=vs.71).aspx
EDIT:
int[] MyArray = new int[100];
int[] MyOtherArray = MyArray;
this is what you can do about your second question
after this function returns you can still use arr2What the heck are you talking about?