Question

How to convert long to int in C#

Answer 1

using System;

class Program
{
    static void Main() {
        long l = 89284;
        int n = Convert.ToInt32(l);

        Console.Write(n);
    }
}



/*
run:

89284

*/

 

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Answer 2

using System;

public class Program
{
    public static void Main(string[] args)
    {
        long bigNumber = 123456701;
        int intNumber = (int)bigNumber; // May cause overflow
        
        Console.WriteLine(intNumber);
    }
}



/*
run:

123456701

*/

 

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Answer 3

using System;

public class Program
{
    public static void Main(string[] args)
    {
        long bigNumber = 123456701346346;
        int intNumber = 0;
        // Safe Conversion Check
        if (bigNumber >= int.MinValue && bigNumber <= int.MaxValue) {
            intNumber = (int) bigNumber;
        } else {
            Console.WriteLine("Overflow detected!");
        }
        
        Console.WriteLine(intNumber);
    }
}



/*
run:

Overflow detected!
0

*/

 

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