Interface member can not have definition. They have only declaration.
interface ITest
{
void Method();
}
All members in interface are by default public. No need to add explicit access
modifier.
interface can not contain fields.
In below code int i; expression will throw compile time error.
interface ITest
{
int i;
void Method();
}
A class can inherit interface.
If you compile below code, it will throw error saying – MyClass does not implement
interface ITest.Method();
class MyClass:ITest
{
}
Interface allow multiple inheritance property.
interface ITest1
{
void Method1();
}
interface ITest2
{
void Medthod2();
}
class MyClass:ITest1, ITest2
{
public void Method1()
{
//Write code
}
public void Medthod2()
{
//write code
}
}
A class doesnt provide multiple inheritance.
public class Program:MyClass1, MyClass2
{
}
It will throw error class Program can not have multiple base classes.
So multiple class inheritance is not possible, but multiple interface inheritance is
possible.
