what is the need of using interface in program ex:if we have a program like this interface1() { void method1(); void method(); } class a1 : interface1 { a1 b = new b(); b.method1(); b.method2(); } so without using interface also we can achieve this then wat is the need to use the interface? plz give me the answer

1 Answers  

---

What are the Types of optimization and name a few and how do u do?

0 Answers   BirlaSoft,

---

Define assert() method? How does it work?

0 Answers   Siebel,

---

Can a loop recorder detect a heart attack?

0 Answers  

---

What does protected internal access modifier mean?

0 Answers  

---

What is a proxy of the server object in .NET Remoting?

1 Answers   BirlaSoft,

---

How?s method overriding different from overloading?

3 Answers  

---

What?s the difference between an interface and abstract class?

4 Answers  

---

Why is it a bad idea to throw your own exceptions?

4 Answers  

---

What is difference between int and int in c#?

0 Answers  

---

What is array c#?

0 Answers  

---

Why does dllimport not work for me?

0 Answers  

---