Module 3 Flashcards by JENNY WONG

include<conio.h></conio.h>

Preprocessor directive

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Two slash signs inserted by the programmer in his C++ program indicate that the rest of the line is a _________.

comment

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include <_________> is the correct way of writing the preprocessor directive to include the contents of iostream in a C++ program

iostream

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C++ was developed by Bjarne Stroustrup as an enhancement to what programming language?

C language

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cout«”Enter two numbers:”;

statement

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The library that defines various mathematical functions in C++.

math

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The symbol used in a preprocessor directive.

Sharp sign(#)

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Which directive instructs the compiler to add the contents of an include file into your program during compilation?

include

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American computer scientist known for his invention of the C programming language

Dennis Ritchie

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These are used to override the order of precedence and force some parts of an expression to be evaluated before other parts.

( ) paranthesis

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True or False: (a!=4) || !(b>c) where a=1, b=2, c=0

True

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All are relational operators, except ______

< >

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What value is placed in sum?

double sum = 10.0, price=100;
sum += price>=100 ? price*1.1 : price;

120

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Which of the following can be considered as a valid identifier?

$Area
123Height
First Name
Final_Grade

Final_Grade

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________ characters are not allowed.

Special

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Given the declaration int num=5; Which of the following is the other way to initialize variables?

int num(5);

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These are the fixed values that do not change during the program’s execution.

Constants

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What value is placed in choice?

int a=5, b=10, c=15 ;
choice = a>b && a>c ? a : (b > c ? b : c) ;

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The following symbols are referred to as relational operators except ______.

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These are parts of the source code disregarded by the compiler. Their purpose is only to allow the programmer to insert notes or descriptions embedded within the source code.

Comments

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The standard value that the return statement should return to signify successful execution of the program.

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The _______ keyword tells the program to return a value to the function int main()

return

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The ordinary arithmetic operations such as addition, subtraction, multiplication, division and modulus division needs the #include<math.h> pre-processor directive</math.h>

False

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He was the developer of C++ programming language.

Bjarne Stroustrup

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All lines beginning with two slash signs (//) do have any effect on the behavior of the program.

False

An identifier must not be one of the keywords. Which of the following is NOT considered as an identifier?

Switch

C++ performs mathematical expression based on the order of precedence. Given the expression 3 + (9 – 7) * 5 / 2, which operator will be performed last?

C++ performs mathematical expression based on the order of precedence. Given the expression 3 + (9 – 7) * 5 / 2, which operator will be performed first?

Let a = 10. What will be the value of a after the following expression a -= 5; is executed?

Which of the following is not an example of an assignment statement?

a == b

The backslash constant that represents a new line.

The special character that indicates a string constant in a Turbo C++ program.

" "

True or False: (a==9) && !(b>c) where a=9 b=8 c=7

False

The relational operator that can be used to test for equality of two expressions.

These are used to override the order of precedence and force some parts of an expression to be evaluated before other parts.

( ) paranthesis

Which of the following is not true about C++?

It is interpreted.

The following statements are true about C++ except __________.

It is a low-level language.

__________ is a programming language characteristic in which variable types are explicitly declared.

Statically typed

C++ is regarded as a ______-level language because it has a combination of both high-level and low-level language features.

middle

Which of the following user-defined identifiers is invalid in C++? - FIRSTNAME - Firstname - first_name - first-name

first-name

True or False: !(c>a) where c=2, a =4

True

The following symbols are relational operators except ______.

Which of the following is NOT a primitive data type in C++ programming?

String

___________ contains all the classes, objects and functions of the standard C++ library.

namespace std

C++ is a free-form language is a programming language in which the positioning of characters on the page in program text is significant.

False

The following statements about int main() function is TRUE except ________.

Semicolon is required at the end of this statement.

These are names that are given to various elements of a program created by the program.

Identifiers

It is a named location in memory that is used to hold a value that may be modified by the program.

Variable

The operator used to divide two numbers and returns only the remainder.

Let a = 2, b = 5, c = 15 and d = 17. What will be the result of the following expression after it is evaluated? !((2<5) || (15 >7))

False

The symbols that indicate the beginning of main's function definition.

{

What value is placed in var? var = 12 > 9 ? 0 : 1; :

Consider the following program snippet. What will be the output? int A = 1, B = 2, C = 3, X = 4, Y = 5, Z = 6; A++; B--; --C; X = Y++ + --Z; cout << B++ - --C;

A sequence of letters, digits or underscore that may be used as a name of a variable, function, or class.

Identifiers

The standard output by default is the printer.

False

What is the output of the given program below? #include using namespace std; int main() { cout<

ABC

Given the declaration, int x, y; cin >>y>>x; When you run the program, you are asked to enter the values of x and y. You entered 3 and 5 successively, what are the values stored in x and y?

x = 5; y = 3

Given: const char SCHOOL[20] = "FIT"; int num1, num2; Assume num1 contains 3 and num2 contains 7. Examine the output statement below and what it produces: cout << "Number is" << num2;

Number is7

Given: const char SCHOOL[20] = "FIT"; int num1, num2; Assume num1 contains 3 and num2 contains 7. Examine the output statement below and what it produces: cout << num2;

const char SCHOOL[20] = "FIT"; int num1, num2; Assume num1 contains 3 and num2 contains 7. Examine the output statement below and what it produces: cout << num1;

_______ is a function that inserts new line character and flushes the stream.

endl

If there is a chained multiple extraction operators (>>) in cin, the inputted values separated by space/s are _____ in the variables respectively.

stored

The function used to round the value toward zero and returns the nearest integral value.

trunc( )

We can perform implicit type conversion on: ____________

Converting char to int

Which of the following is not true in implicit type conversion?

It is a force type conversion.

The _______ functions maps a real number to the greatest preceding integer.

floor

Which of the following symbols is best used to make a 20-line statements as block comment?

/* */

#include, and #define are examples of preprocessor directives.

True

C++ is _____________ programming language.

case-sensitive

It is used to define symbolic names for constants.

#define

It is an operator used to alter the value of a variable

All variables in C++ must be declared ___ to their use.

prior

_______________________ are built-in that can be used directly by the user to declare variables.

Primitive data types

C++ programs are __________ not interpreted.

compiled

What value is placed in var? int x = 5, y = 19; var = y-x > x-y ? y-x : x-y ;

Which of the following is a valid identifier?

Gr_Level

The special character that terminates each statement in a C++ program.

semicolon (;)

Let a=2, b=5, c=15, d=17: Evaluate the given expression: cout << !((ad));

0 (FALSE)

All variables must be declared before it will be used. Which of the following is a correct declaration of variables?

float Wt, Ht;

Consider the following statements: int x = 22,y=15; x = (x>y) ? (x+y) : (x-y); What will be the value of x after executing these statements?

An operator that is also called ternary operator.

Conditional Operator