How do you establish multiple inheritance in C#?

Multiple inheritance is where an entity extends behavior of more than one entity. In Java, you establish multiple inheritance through classes because a class can inherit from more than one class. But in C#, a class can inherit from only one class.

Then how do you establish multiple inheritance in C#? You can achieve it using interfaces. In C# though a class can inherit from only one class, the same class can implement more than one interface. Here is an example demonstrating multiple inheritance in C# using interfaces:

interface sampleInterface1 {
void sampleMethod1();
}
interface sampleInterface2 {
void sampleMethod2();
}
class sampleClass:sampleInterface1,sampleInterface2 {
void sampleMethod1() {
Console.WriteLine(“Extending sampleMethod1of sampleInterface1”);
}
void sampleMethod2() {
Console.WriteLine(“Extending sampleMethod2 of sampleInterface2”);
}
}
class testClass {
public static void Main() {
sampleClass obj = new sampleClass();
obj.sampleMethod1();
obj.sampleMethod2();
}
}

Output of this code will be:

Extending sampleMethod1of sampleInterface1
Extending sampleMethod2 of sampleInterface2

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