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Is it possible to Override Private Virtual methods
A) YesB) NoC) Either A or BD) None
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How do I simulate optional parameters to COM calls?
You must use the Missing class and pass Missing.Value (in System.Reflection) for any values that have optional parameters.
sahu
- Jan 10th, 2006
Ans:Yes,it is right.Answer: You must use the Missing class and pass Missing.Value (in System.Reflection) for any values that have optional parameters.
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How do I declare inout arguments in C#?
The equivalent of inout in C# is ref. , as shown in the following example: public void MyMethod (ref String str1, out String str2) {...}When calling the method, it would be called like this: String s1;String s2;s1 = "Hello";MyMethod(ref s1, out s2);Console.WriteLine(s1);Console.WriteLine(s2);Notice that you need to specify ref when declaring the function and calling it.
sahu
- Jan 10th, 2006
Ans:Answer: The equivalent of inout in C# is ref. , as shown in the following example: public void MyMethod (ref String str1, out String str2) {...}When calling the method, it would be called like thi...
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How do you specify a custom attribute for the entire assembly (rather than for a class)?
Global attributes must appear after any top-level using clauses and before the first type or namespace declarations. An example of this is as follows: using System;[assembly : MyAttributeClass]class X {}Note that in an IDE-created project, by convention, these attributes are placed in AssemblyInfo.cs.
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How do I register my code for use by classic COM clients?
Use the regasm.exe utility to generate a type library (if needed) and the necessary entries in the Windows Registry to make a class available to classic COM clients. Once a class is registered in the Windows Registry with regasm.exe, a COM client can use the class as though it were a COM class.
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Why do I get a security exception when I try to run my C# app?
Some security exceptions are thrown if you are working on a network share. There are some parts of the frameworks that will not run if being run off a share (roaming profile, mapped drives, etc.). To see if this is what's happening, just move the executable over to your local drive and see if it runs without the exceptions. One of the common exceptions thrown under these conditions is System.Security.SecurityException.To...
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How can I get around scope problems in a try/catch?
If you try to instantiate the class inside the try, it'll be out of scope when you try to access it from the catch block. A way to get around this is to do the following: Connection conn = null; try {conn = new Connection();conn.Open();}finally{ if (conn != null) conn.Close(); }By setting it to null before the try block, you avoid getting the CS0165 error (Use of possibly unassigned local variable...
sahu
- Jan 10th, 2006
ans:Answer: If you try to instantiate the class inside the try, it'll be out of scope when you try to access it from the catch block. A way to get around this is to do the following: Connection conn =...
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What is the equivalent to regsvr32 and regsvr32 /u a file in .NET development?
Try using RegAsm.exe. The general syntax would be: RegAsm. A good description of RegAsm and its associated switches is located in the .NET SDK docs. Just search on "Assembly Registration Tool".
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Does C# support C type macros?
No. C# does not have macros. Keep in mind that what some of the predefined C macros (for example, __LINE__ and __FILE__) give you can also be found in .NET classes like System.Diagnostics (for example, StackTrace and StackFrame), but they'll only work on debug builds.
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C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write?
Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there is no implementation in it.
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Describe the accessibility modifier protected internal.
It's available to derived classes and classes within the same Assembly (and naturally from the base class it's declared in).
sahu
- Jan 10th, 2006
ans: It's available to derived classes and classes within the same Assembly (and naturally from the base class it's declared in).
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What is an indexer in C#
A) Special syntax for overloading [ ] operator for a classB) One which speeds up the function callC) None of the above
sahu
- Jan 10th, 2006
Ans:Answer: A) Special syntax for overloading [ ] operator for a classB) One which speeds up the function callC) None of the above
samiksc
- Jan 10th, 2006
(A) Indexer is a special syntax for overloading [] operator for a class. After defining an indexer, array syntaxes can be used for the class objects.
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You can explicitly call the garbage collector
Skill/Topic: AdvancedA) TrueB) False
s
- Feb 15th, 2006
True, we can call GC using System.GC.Collect() method.
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How can you sort the elements of the array in descending order?
By calling Sort() and then Reverse() methods.
bhawesh
- Feb 21st, 2006
first sort elements of array in ascending order using appropriate sorting technique( BUBBLE,HEAP,QUICK..........)AFTER sorting scan array in reverse order ie and store it.
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Can we inherit the java class in C# class,how?
prakash_s_nayak
- Feb 23rd, 2006
Java Programming language is not supported with .Net Framework hence you cannot inherit javaclass in C# class.Also Java has JavaByte code after compiling similar to MSIL which is similar but cannot inherit due to framework support.
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Following are the features of .NET
Skill/Topic: IntermediateA) Language InteroperabilityB) Garbage CollectionC) Multiple Inheritance
meetsabir1@yahoo.com
- Feb 27th, 2006
By the interface we can go for the multiplle inhertiance also so my answer ids corrget for tHAT
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A shared assembly must have a strong name to uniquely identify the assembly
A) TrueB) False
Biswa Prakash Rath
- Feb 28th, 2006
Answer: A) TrueA shared assembly must have a strong name to uniquely identify the assembly. The strong key is created by using the commandsn -k assemblyname.snk
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It is not possible to debug the classes written in other .Net languages in a C# project.
A) TrueB) FalseExplanation: It is possible to debug the code as all are adhering to CTS & CLS
Vinod
- Mar 8th, 2006
May i assume that results by sisira is wrong always?
samiksc
- Jan 10th, 2006
Answer is (B) False: It is definitely possible to debug other .Net languages code in a C# project. As everyone knows .net can combine code written in several .net languages into one single assembly. Same is true with debugging.
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Which of the following application need not to have an entry point
A) Console applicationB) Windows applicationC) Class ModulesExplanation: Class modules are referred by another project which will have entry point.
Ravi Kumar
- Mar 12th, 2006
Assemblies may or may not be executables.exe or dllclass modules had no entry pont.entry point means public void static main() method
samiksc
- Jan 10th, 2006
(C) Class modules is the correct choice. Console applications and windows applications do require entry point, i.e. Main() method.Class modules are compiled into DLLs which are referred by other applications. They do not have an entry point.
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C# Interview Questions
Ans