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Company >> HCL >> Interview Questions >> C Sharp Interview Questions
HCL Interview Questions by Category

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What is the Use Of Interfaces? For example I have a interface as shown below? Interface IMyInterface { public void MyMethod(); } class MyClass : IMyInterface { public void Mymethod() { Some Code } } class Program { static void Main(string[] args) { MyClass obj = new MyClass(); obj.MyMethod(); } } Here What is My Question is? If i remove Interface and run this code, it will executed then what is the Use of the interface? Can any one give me the solution for this Problem? Thanks in Advance!    1  977
why we can't create an object for a static class?? what is the reason behind this?    4  1682
class Program { void add() { int x=10, y=20; fun(); Console.WriteLine("{0}", sum); } void fun() { int sum; sum = x + y; } static void Main(string[] args) { Program f =new Program(); f.add(); } } Debug above program.....    3  748
There are a class A. Another class B derived from it. Now if I do A a = new B(); and B b = new B(); What will happen in both the statements. And what is the difference between these two statements.    3  1506
What is Bubble Event ?    2  1722
what is Diff Gram Nippon Data Solution  2  1138
what is the fastest way to concatenate strings in c sharp? HCL  4  2201
What is type casting. Explain it with reference to classes. Hcl  1  1943
Can we inherit an interface in an abstract class?    6  2518
Write a functin to add two no. Both no can be int, float.    3  1047
What is scavenging?    2  1379
explain the nature of the assembly work?    0  263
Why do we need interfaces?    2  2237
1) how to delete duplicate records from table in sql server 2005 2) what is run time polymorphism L Hcl  4  2920
C# Code for How to set readonly property to Id(database) value? Hcl  2  3332
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