Interface implementation in C#

Prakash Tripathi

Hi guys,

Can someone tell me why I am getting output as I am from I1 in both the cases explained below.

interface I1

{

void Cal1();

}

interface I2

{

void Cal1();

}

class Program: I1,I2

{

void I1.Cal1()

{

Console.WriteLine("I am from I1");

}

void I2.Cal1()

{

Console.WriteLine("I am from I2");

}

static void Main(string[] args)

{

I1 i1 = new Program();

i1.Cal1(); //Actual output: I am from I1

I1 i2 = new Program();

i2.Cal1(); //Actual output: I am from I1, Expecting I am from I2

Thanks,

Prakash

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes12y ago
Accepted answer
i2 needs to be a variable of the interface type I2 to get the output you're expecting. So you need:

I2 i2 = new Program();
i2.Call();
0
Prakash Tripathi12y ago
Thanks Vulpes for pointing the mistake. It was typo from my side :)
0
Munesh Sharma12y ago
http://www.tutorialspoint.com/csharp/csharp_interfaces.htm

http://csharp.net-tutorials.com/classes/interfaces/
0