Intro to Visual Basic .NET

Question 1

What is Visual Basic .NET based on?

Answer 1

The .NET framework

Question 2

Variable

Answer 2

A variable is a memory location that’s used to store data. A variable is referred by a name and can store data of any particular data type. The data stored in a variable can change at any point in the program

Question 3

Data types

Answer 3

The data type refers to what kind of data such as numbers or text. Visual Basic .NET provides you with various data types such as Integer, String, Byte, and Date

Question 4

Constant

Answer 4

A constant is similar to a variable and is used to store a value. The only difference between the two is that the value stored in a constant always remains the same. A constant is also assigned a name and is of a particular data type

Question 5

Array

Answer 5

An array is a set of variables with the same name. You refer to these variables by specifying their index position, which is the position of the variables in an array. Visual Basic .NET enables you to create single- and multi-dimensional arrays as well as to resize the array at runtime.

Question 6

Enumeration

Answer 6

An enumeration is a set of related constants

Question 7

Operators

Answer 7

An operator is a symbol used to perform operations on constants and variables. Visual Basic .NET provides you with arithmetic, logical, and concatenation operators to perform with constants and variables.

Question 8

Expression

Answer 8

A combination of variables, constants, and operators, an expression returns a value

Question 9

Statement

Answer 9

A statement is a combination of variables, constants, operators, expressions, and keywords

Question 10

Keyword

Answer 10

A term with a special meaning i.e. the Dim keyword is used to declare a variable

Question 11

Declaration Statements

Answer 11

These statements are used to declare a variable, a constant, or procedure

Question 12

Executable Statements

Answer 12

These statements are used to perform an action

Question 13

Procedure

Answer 13

A procedure is a set of statements that are used to perform a specific task

Question 14

Assembly

Answer 14

An EXE or a DLL file that forms the basis of deployment, version control, reuse, and security permissions of an application- an assembly is a building block of the .NET framework.

Question 15

Namespace

Answer 15

Contains types, such as classes, structures, enumerations, and interfaces.

Question 16

Beginning of Namespace

Answer 16

Always begins with either the word System or Microsoft

Question 17

Hierarchies of Namespaces

Answer 17

Written with dots (periods; .) inserted between two levels i.e. System.Windows.Forms

Question 18

Reference

Answer 18

To use objects that are external to your current project.

Question 19

Imports

Answer 19

Syntax used to reference an object outside your current application

Question 20

Attributes

Answer 20

The tags introduced with VB that you use to provide additional information about the elements you define in a Visual Basic .NET program

Question 21

Inheritance

Answer 21

You can create classes derived from some other classes.

Question 22

Base class

Answer 22

Other classes

Question 23

Visual Inheritance

Answer 23

Inherit a form from an existing form

Question 24

ReDim

Answer 24

Used for re-sizing or to declare an array

Question 25

String

Answer 25

A string of characters (numbers or letters). Can be specified i.e. Dim MyStr As String *10

Question 26

Decimal

Answer 26

The data type to store currency values

Question 27

DateTime

Answer 27

The data type to store a date

Question 28

Object

Answer 28

The data type to store any type