C++

Question 1

What is the difference between C and C++

Answer 1

The main difference is that C is a procedural programming language and does not support classes and objectd, while C++ is a combination of both procedural and object-orientated programming languages.

Question 2

Is C a procedural language or an object orientated language?

Answer 2

Procedural

Question 3

Is C++ a procedural language or an object orientated language?

Answer 3

object orientated

Question 4

what are #include … lines called

Answer 4

pre-processor directives

Question 5

include

Answer 5

contains functions for

converting data from one type to another

random number generators

memory managment

sorting

Question 6

include

Answer 6

functions for performing input and output operations

Question 7

include

Answer 7

resizeable arrays

Question 8

include

Answer 8

allows you to manipulate strings

Question 9

how to add a line below hello world when ouputted

std::cout

Answer 9

1)

std::cout

Question 10

include

Answer 10

finding minimum and maximums

Question 11

What is the difference between a Float and a Double

Answer 11

A float has 32 bit precision for a floating number.
A double has 64 bit precision for a floating number.

A double is more precise and requires more memory.

Question 12

print hello world using printf()

Answer 12

printf(“hello world”)

Question 13

printf(“%c”, ?)

Answer 13

A character e.g ‘A’

Question 14

printf(“%d”,?)

Answer 14

interger e.g 10

Question 15

printf(“%.3f”,?)

Answer 15

Three decimal place float

Question 16

printf(“%s”,)

Answer 16

string e.g “hi”

Question 17

what does std::cin do

Answer 17

refers to input from keyboard

Question 18

what does std::stoi() do

Answer 18

convert string to interger

Question 19

how do you convert strings to doubles

Answer 19

std::stod

Question 20

What is the and operator in c++

Answer 20

&&

Question 21

What is the Or operstor in C++

Answer 21

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