VB

Question 1

Variable is a

Answer 1

Memory location that holds data and can be changed during the execution of a program.

Question 2

What is a Constant?

Answer 2

Quantities that do not change during the execution of a program are called constants. If an attempt is made to change the value of a constant during execution, an error will be generated.

Question 3

How to declare a variable?

Answer 3

Declaration of a variable means specifying its data type. A variable can be declared as:
Dim <varname> As <data></data></varname>

Question 4

Variable name is also called as

Answer 4

An identifier as it identifies a memory location

Question 5

The amount of memory space required depends on its

Answer 5

Data type

Question 6

What is a declaration statement?

Answer 6

Statement that declares a variable is a declaration statement and it’s a non - executable statement.

Question 7

Syntax of declaring a constant

Answer 7

Const constname As <data></data>

Question 8

What are intrinsic constants

Answer 8

Intrinsic constants are system defined constants or predefined constants these constants need not be declared and can be used directly

Question 9

Constants starts with the prefix

Answer 9

Vb

Question 10

What is a default data type?

Answer 10

Default data type is called as the variant

Question 11

Variant

Answer 11

Requires more space in the memory and operates less slowly then other data types

Question 12

Data types used in VB are

Answer 12

Boolean byte currency data double integer long single string and variant

Question 13

Integers in the range

Answer 13

-32768 to 32767

Question 14

What is a function

Answer 14

Function is a code that performs certain actions and returns or gives a value.
To do it’s calculations, a function needs an input, this input is called as the function argument.

Question 15

The purpose of the val statement of val function

Answer 15

The purpose of the valve function is to convert text data into numeric data
Syntax: val(texttoconvert)

Question 16

Arithmetic operations in which vb

Answer 16

Exponential division multiplication addition on and subtraction are the arithmetic operations in vb

Question 17

What do you mean by formatting data

Answer 17

Formatting Data means to control the way it will look on the screen or paper

Question 18

The format functions in vb

Answer 18

Format currency format number function format percent function format date time function

Question 19

Control structures

Answer 19

Control statements are used to control the flow of execution in a program

Question 20

Examples of decision statements

Answer 20

If then statement if then else statement if then elseif statement select case statement

Question 21

Example of loop structures

Answer 21

Do while loop while wend loop for next loop

Question 22

What is a relational operator

Answer 22

A relational operator gives a relation between its operands. Whenever a relational operator is used the result of the operation or expression is either true or false.

Question 23

How many relational operators are there name them

Answer 23

6 relational operators
>,<,=,<>,>=,<=

Question 24

The if then statement

Answer 24

Execute a set of statements if a given condition is true

Question 25

If then else statement

Answer 25

Executive set of statements if we given condition is true otherwise execute another set of statements

Question 26

The nested if then else statement or if then else if statement

Answer 26

Nested if then else selection structures test for multiple cases by placing if then else selection structures inside if then else structures

Question 27

Can we carry out a numeric comparison on text property

Answer 27

We can carry out a numeric comparison on text property by using the val function

Question 28

What is input validation

Answer 28

Input validation means to check whether the data entered by the user is correct or not.
Validation mein include checking whether the data is numeric check that data is in a particular range and check that any field has not been left blank

Question 29

Is numeric function

Answer 29

The is numeric function checks whether its argument is numeric or not.
This function returns the value true if it’s argument is numeric or else it returns false.

Question 30

What is a loop

Answer 30

Of repeating a set of statements for a specified number of times or until a condition is true is called looping.
The group of repeated statements is called a loop.

Question 31

What is an iteration

Answer 31

A single execution of the statements in the loop is called an iteration.