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Computer Interview Questions Answers

Visual Basic 6 Interview Questions Answers

Question - 21 : - What is Collection Objects?

Answer - 21 : - Similarly to arrays but is preferred over an array because of the following reasons. 1. A collection objects uses less Memory than an array. 2. It provides methods to add and delete members. 3. It does not required reason statement when objects are added or deleted. 4. It does not have boundary limitations.

Question - 22 : - How to declare Dll Procedure?

Answer - 22 : - Declare function "" lib "" Alias "" (Arg, ..) as Return type.

Question - 23 : - What is Parser Bug?

Answer - 23 : - It is difficult to use database objects declared in a module from within a form.

Question - 24 : - What is Static Variable?

Answer - 24 : - Its Scope will be available through out the life time.

Question - 25 : - What is the return type of Instr and Strcmp?

Answer - 25 : - Instr integer (Numeric position) Strcmp - integer ( if both the string are equal they result = 0) Strcmp (Str1, Str2, Comparetype) Comparing mode = 0 Binary Comparing 1 Textual Comparing

Question - 26 : - With in the form we want to check all the text box control are typed or not? How?

Answer - 26 : - For each currentcontrol in controls if typeof currentcontrol is TextBox then end if next

Question - 27 : - Suppose from form1 to form2 object property settings will arise to ?

Answer - 27 : - Invalid procedure call or argument (Run time error 5)

Question - 28 : - What is keyword used to compare to objects?

Answer - 28 : - ISOperator Returns Boolean.

Question - 29 : - Private Dim x as integer. Valid ?

Answer - 29 : - Private cannot be used in front of DIM.

Question - 30 : - What is the max size allowed for Max Control Names length?

Answer - 30 : - 255.

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