Question

How to use Int64 and UInt64 in C#

Answer 1

// Int64 = signed eight bytes integer within the range of: -9223372036854775808 to 9223372036854775807

// UInt64 = unsigned eight bytes integer within the range of: 0 to 18446744073709551615

using System;

class Program
{
    static void Main() {
        Int64 i64_1 = 483;
        Int64 i64_2 = -3982;

        UInt64 ui64_1= 392843;

        Console.WriteLine("{0} is {1}", i64_1, i64_1.GetTypeCode());
        Console.WriteLine("{0} is {1}", i64_2, i64_2.GetTypeCode());
        
        Console.WriteLine("{0} is {1}", ui64_1, ui64_1.GetTypeCode());
    }
}




/*
run:

483 is Int64
-3982 is Int64
392843 is UInt64

*/

 

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