CHAPTER 19 - C++

Multiple Choice

Which game is not coded in C++?

• The Sims
• GTA5

• Minecraft
• PubG

Multiple Choice

Which of the following is NOT commonly created using C++?

• Operating Systems
  

• Video Games
  

• Smart Contracts
  

• Databases

​JAVA VS C++

Multiple Choice

C++ is __________ sensitive.

• keyword

• case

• time

• syntax

Multiple Choice

What is mandatory in every C++ program?

• Class definition

• Skeleton program

• Public inheritance

• Static methods

Multiple Choice

In C++, every statement must end with a __________.

• comma
• semicolon
• period
• exclamation mark

Multiple Choice

In C++, the operator << is known as:

• stream output operator
• stream insertion operator
• stream redirection operator
• stream display operator

Multiple Choice

Which code will output "HelloWorld" without a space between words?

• cout << "Hello" << "World";

• cout << "Hello" << endl << "World";

• cout << "Hello " << "World";

• cout << "Hello" << endl; cout << "World";

Multiple Choice

What is the effect of inserting << endl in C++ output?

• It adds a tab space

• It deletes previous output

• It moves to the next line

• It prints a special symbol

Multiple Choice

Which is an example of a single-line comment in C++?

• # comment
• /* comment */
• // comment
• //

Multiple Choice

Block comments in C++ are enclosed by:

• # and #
• // and //
• /* and */

Fill in the Blanks

Fill in the blank:
In C++, you must

a variable before using it.

Multiple Choice

Which of the following is a valid C++ variable declaration?

• int myVariable;
• integer myVariable;

• charactor myVariable;

• int myVariable

Multiple Choice

Which variable name is invalid in C++?

• c) 2ndPlace
• distance_covered

• amount$
• total_value1

Multiple Choice

Which is a correctly written constant in C++?

• const int 100 = MAX_VALUE;
• const int MAX_VALUE = 100;
• int const MAX_VALUE = 100;
• const MAX_VALUE : int = 100;

Multiple Choice

Which keyword is used to define a constant in C++?

• class

• Constant

• final
• const

Multiple Choice

Which command is used for standard input in C++?

• cin
• scanf
• cout
• printf

Multiple Choice

Which function is used to read an entire line, including spaces?

• readLine(cin, var)

• getLine(cin, var)

• input(cin, var)

• scanLine(cin, var)

This website provides for you the skeleton program:
https://www.programiz.com/cpp-programming/online-compiler/

​Task: Write a program that asks the user for their name, age and grade, then prints a greeting.

Requirements:

✅ Use cout to ask for the user's name, age, and grade
✅ Use cin to receive input from the user
✅ Display a message to welcome them to Computer Lab.
✅ Add at least one single-line comment explaining a line of code
✅ Add one multi-line comment describing what the program does at the beginning
✅ Share the link of your program via Quickschools

Multiple Choice

Which operator is used for multiplication in C++?

• x

• **

• mult

• *

Multiple Choice

C++ does NOT have an exponent (power) operator

• True, you cannot do exponent calculations in C++

• False, C++ uses the ^ operator for exponentiation.

• I have no idea what exponent is

• True, but it provides a method from Math library

Multiple Choice

• Which relational operator means "not equal to" in C++?

• !=

• !==

• ><

• =!

Multiple Choice

Which relational operator checks for greater than or equal to?

• =>

• >=

• =>=

• >==

• =<=

Multiple Choice

In C++, which operator represents logical AND?

• ||
• &
• and
• &&

Multiple Choice

Which symbol is used for logical OR in C++?

• &&
• |
• OR

• ||

Multiple Choice

Which is a correct if statement syntax in C++?

• if (condition) // code to execute }
• if condition { // code to execute }
• if { condition } // code to execute
• if (condition) {

  // code to execute

  }

Multiple Choice

Which keyword must immediately follow if, if you ned to add 2 other conditions?

• elif

• else if

• while
• else

Multiple Choice

In C++, else without an if block is:

• valid syntax
• optional syntax
• invalid syntax
• conditional syntax