COMPUTER 9 by umar (all lessons)

Question 1

is an object-oriented programming language

Answer 1

C++

Question 2

origin of C++

Answer 2

C

Question 3

Who created C++?

Answer 3

Bells Lab by Bjorne Stroustrup

Question 4

In what year was C++ made?

Answer 4

1979

Question 5

models real world objects

Answer 5

Object-Oriented Program (OOP)

Question 6

concrete and abstract objects

Answer 6

Objects

Question 7

template or blueprint from which objects are created

Answer 7

Class

Question 8

process of combining data and function to form a class or object
(e.g students, teacher.)

Answer 8

Encapsulation

Question 9

process wherein an object acquires the characteristicss of one or more objects
(e.g mother, son. windows 7, windows 10)

Answer 9

Inheritance

Question 10

ability of a variable, function, or object to take on multiple forms
(e.g laptop, desktop. phone, android)

Answer 10

Polymorphism

Question 11

a free open source, cross platform IDE that supports multiple compilers

Answer 11

Code Blocks IDE

Question 12

IDE stands for?

Answer 12

Integrated Development Environment

Question 13

4 panels of Code Blocks

Answer 13

Management
Editor
Logs and Others
Status Bar

Question 14

This panel contains project tab which displays all open project.

Answer 14

Management

Question 15

this panel is where you type your code.

Answer 15

Editor

Question 16

This window is used to search the results and message.

Answer 16

Logs and Others

Question 17

Current state of the file

Answer 17

Management

Question 18

turns the code that you have written to an executable program

Answer 18

Compiler

Question 19

Parts of C++ Program

Answer 19

objects, functions, variables, expressions, constants, and a host of other components.

Question 20

used to output something on the console.

Answer 20

Cout

Question 21

it indicates the output

Answer 21

&laquo_space;(2 lesser than signs)

Question 22

always end with this symbol

Answer 22

semicolon

Question 23

to show whether or not the function was successfully executed.

Answer 23

Return

Question 24

A value of _ means success

Answer 24

0

Question 25

string is for?

Answer 25

text

Question 26

is a program that processes a source file before the main complation takes place

Answer 26

Preprocessory directive

Question 27

is an c++ feature designed to simplify the writing of large programs.

Answer 27

Namespace

Question 28

this is the namespace were the classes, functions, and variables that are standard components to compilers.

Answer 28

Std

Question 29

are lines of code that are not executed during the program.

Answer 29

Comments

Question 30

2 types of comments

Answer 30

single line & and multi line

Question 31

this enables the entire statement

Answer 31

single line comment

Question 32

this enables multiple statements

Answer 32

multi line comments

Question 33

is an instructional code that commands the computer to do a certain action upon its execution.

Answer 33

Statement

Question 34

are reserved words in a programming language that have specific use.

Answer 34

Keyboards

Question 35

__ of a variable determines what kind of values it can store.

Answer 35

Data type

Question 36

a data type returns either true or false. 1 is true value, while 0 is false

Answer 36

Boolean

Question 37

are user defined words used to represent a value

Answer 37

Identifiers

Question 38

are identifiers whose valie may change during execution of the program.

Answer 38

Variables

Question 39

rules in naming Identifiers

Answer 39

— it start with a letter or underscore.
— no special characters except underscore.
— reserved words are not allowed.

Question 40

is a variable declared in the main body of the source code, outside all functions.

Answer 40

Global Variable

Question 41

is a variable declared within the body of function or a block.

Answer 41

Local Variable

Question 42

2 types of Variables

Answer 42

Global and Local

Question 43

are identifiers whose value cannot change during program.

ex. const – const in day = 7

Answer 43

Constants

Question 44

statement output what is within the statement.

Answer 44

Cout

Question 45

a special c++ notation that causes the screen cursor to move to the beginning of the next line.

Answer 45

Endl