Chapter 2- Basic Programs

Question 1

Boolean

Answer 1

A value that is True (0) or False (1)

Question 2

Char

Answer 2

A value that consists of one character

Question 3

Class scope

Answer 3

Refers to a variable that is declared in the private or public section of a class definition. Can be accessed by all methods in the class

Question 4

Constant

Answer 4

A fixed value allocated to a variable in a program

Question 5

Data type

Answer 5

Indicates the type of data to be stored in a variable

Question 6

DIV

Answer 6

An operator that gives the quotient of two values as a whole number

Question 7

Duration of a variable

Answer 7

The lifetime- how long or when a variable exists in a program.

Question 8

Local Duration

Answer 8

When variable declared in event handler: will be created when event handler executes, will be destroyed when event handler is done being executed.

Question 9

Static duration

Answer 9

When a variable is declared as public or private variable of the class of a Form: will exist all the time while program is running

Question 10

FloatToStrF

Answer 10

Function used to format output

Eg: pnlOut.Caption:=FloatToStrF(rVal, ffFixed,6,2);

Question 11

InputBox

Answer 11

Function that generates a dialog box to obtain input

Eg: sName:= InputBox(‘Type the name:’,’Name:’,’’);

Question 12

Integer

Answer 12

Value of this type can only be a whole number

Question 13

Method scope

Answer 13

Refers to a variable that can only be used in a method because it is declared in the VAR section of that method

Question 14

MOD

Answer 14

Operator that gives the remainder after the division of 2 values

Question 15

Real

Answer 15

Value of this type can be any number

Question 16

Scope of a variable

Answer 16

The part of a program where a variable can be accessed (Method, Class, Unit)

Question 17

String

Answer 17

Data item that consists of combination of characters

Question 18

Unit scope

Answer 18

Refers to variables declared in the implementation section of the unit file.

Question 19

Variable

Answer 19

A space in RAM where a data item can be kept temporarily