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What is the output of the messagebox function in following codeClass Test Dim A, B, C as Byte, Sub Main() A=200 B=100 C=A+B Console.WriteLine ( C )End subEnd Class
A) Prints 300 as the outputB) Prints “C”C) Compiler ErrorD) RunTime ErrorExplanation: Over flow exception as the sum of 2 bytes is always long
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What is the output of the following codeClass _Myclass Public Shared Num as integer Public Sub New (I as integer) {num=i} End sub Public sub New() End sub End Class Class Test Dim Cls1 as _Myclass (100 ) Dim Cls2 as New _MyclassConsole.Writeline (Cls2.num)End Class
A) Prints 0B) Prints 100C) Prints NullExplanation: prints 100 because num is shared variable
sreeharshavardhana
- Apr 21st, 2006
As I have gone through this code, might return compiler error. Because we cannot decalare variable with initializing with 'New' key word. But in this code the 'Dim Cls1 as _Myclass (100 )' does not have 'New' key word.
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What is the out put NotInheritable Class A Public sub printA End sub Public sub PrintB End subEnd ClassClass B Inherits A End Class
A) Both PrintA & PrintB are available at Class BB) Only PrintA is available at Class BC) Class B Can not inherit classA as it is not inheritable
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Web.Config file is of the type
A) .vbB) XMLC) ResourceD) Aspx
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Which method of VB.NET implements the same functionality of Destructor of C#
A) DisposeB) CloseC) FinalizeD) Nothing
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Which of the following can be used to run other application or batch file from VB.Net
A) System.Diagnostics.ProcessB) System.App.RunC) System.Diagnostics.RunD) System.Fileapp.Execute
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Which of the following is a valid statement
A) I = Integer.Parse(S) ' where I is an integer and S is a stringB) I = Parse(S) ' where I is an integer and S is a stringC) S = Parse(I) 'where I is an integer and S is a stringD) None
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Which of the following are the valid method of command object
A) ExecuteNonQuery & ExecuteScalarB) ExecuteQuery & ExecuteScalarC) ExecuteParameterD) None
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How do you call a method on webservice asynchronously
A) Create a Callback method that take an Iasyncresult as aparameterB) Call the method as you would call a method of any other classC) Declare an exernal function
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All output from Trace& Debug classes is directed to which collection
A) TraceB) DebugC) ListenersD) None
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Much of the underlying integration of .NET is accomplished with XML
A) TrueB) FalseExplanation: Web services, Configurations, Assembly’s, ADO.NET extensively uses XML
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In VB.NET we have 2 different File extension for class Module files and for Forms
A) TrueB) FalseExplanation: All the files will have the same extensions as .VB
pampatipraveen
- Jan 24th, 2006
Both Class Module file and Forms will have same Extention in VB.Net i.e .VB
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Reference Types are located on
A) StackB) HeapC) Managed Heap
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VB.Net has only 2 major variable types
A) TrueB) FalseExplanation: The only 2 major types are Value types & Reference types
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Which of the following is not a value type in VB.NET
A) BooleanB) Int16C) ByteD) StringExplanation: String is a class in VB.NET hence it is a reference type but not value type.
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What is the operation that you can not do with primitive types
A) Assign a value to primitive type using a literalB) Declare primitive types to be constant using the Const keywordC) Create a new instance of primitive type with New keywordExplanation: Instance creation is possible only with reference types
ravikgoru
- Jul 27th, 2006
Answer is C. You cannot create a new instance of primitive type with a new keyword
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Which of the following type has been introduced in VB.Net compare with VB
A) SingleB) DoubleC) Decimal
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What is the significance of Option Compare statement when it is set to On
A) Specifies that any variable name is declared (with type) before useB) Specifies whether strings should be compared as binaryC) Specifies that variables should be initialized before use
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Option base statement which was introduced in VB6 is till valid in VB.NET
A) TrueB) FalseExplanation: Option base statement has been removed in VB.NET
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The methods declared with the following modifiers are not accessible out side the current VB.NET project
A) PublicB) ProtectedC) FriendExplanation: Friend methods are internal to the active project they are not acceble out side the project.
VB.NET Interview Questions
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