program which calls int and float and double methods

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If i call add(1.1); i am getting a compilation error - 'best overload method doesnot match'. But i have a float method in the code. why still i am getting this error ?? Sample code is given below,

C#

private void button1_Click(object sender, EventArgs e)
        {
            add(0.1);
        }

        void add(int i)
        {
            MessageBox.Show("int i");
        }

        void add(float i)
        {
            MessageBox.Show("float i");
        }

If i call add(1); i will get the answer 'int i' which is right.

If i call add(1.1); i am getting a compilation error - 'best overload method doesnot match'. But i have a float method in the code. why still i am getting this error ??

I f i write a method which has a 'double' argument compilation error goes.

Posted 3-Aug-14 8:39am

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Andrius Leonavicius · Accepted Answer · 2014-08-03T09:08:00

Hi,

1.1 is interpreted as a double, not as a float. You need to add suffix f for float (1.1f). Also, double has optional suffix d.

Here's equivalent example in a console application:

C#

class Program
{
    static void Main(string[] args)
    {
        add(1); // int
        add(1.1f); // float
        add(1.1); // double
        Console.ReadLine();
    }

    static void add(int i)
    {
        Console.WriteLine("int i");
    }

    static void add(float i)
    {
        Console.WriteLine("float i");
    }

    static void add(double i)
    {
        Console.WriteLine("double i");
    }
}

Result:

int i<br />
float i<br />
double i