What is different between ToInt32 and ToInt 16 and ToInt 64

Question

please explain for me

Answer 1

Int16 uses 16 Bit for saving your Integer value which means you can Min and Max values of: 32768 to 32767

The same for Int32 and Int64:

Int32: –2147483648 to 2147483647
Int64: -9223372036854775808 to 9223372036854775807

If you want to read more about this, all the limits are listed here:
https://msdn.microsoft.com/en-us/library/296az74e.aspx