Lesson 4 C++ Operators

Question 1

An _______ is a symbol that tells the
compiler to perform specific mathematical or
logical manipulations.

Answer 1

operator

Question 2

What is the symbol for Assignment Operator

Answer 2

=

Question 3

used for assignment, it takes the right-hand side (called rvalue) and copy it into the left-hand side (called lvalue).

Answer 3

’ = ‘

Question 4

___________________________ modify the current value of a variable by performing an operation on it. Example. (+=, -=, *=, /=, %=,&raquo_space;=, «=, &=, ^=, |=)

Answer 4

Compound assignment operators

Question 5

There are operators used to perform basic
mathematical operations. Addition (+) , subtraction (-) , division (/) multiplication (*) and modulus (%) are the basic mathematical
operators.

Answer 5

Mathematical / Arithmetic Operators

Question 6

increases the value of a variable by 1.

Answer 6

increment operator or ++

Question 7

decreases the value of a variable by 1.

Answer 7

decrement operator or –

Question 8

Two expressions can be compared using
relational and equality operators.

Ex. (==, !=, > , < , >=, <= )

Answer 8

Relational and Comparison Operators

Question 9

Identify the operator for these description:
1.) Equal to
2.) Not equal to
3.) less than
4.) greater than
5.) less than equal to
6.) greater than or equal to

Answer 9

1.) ==
2.) !=
3.) <
4.) >
5.) <=
6.) >=

Question 10

What are the Logical Operators

Answer 10

(!, && , ||)

Question 10

What is the C++ operator for the
Boolean operation NOT.

Answer 10

!

Question 11

This operator corresponds to the Boolean
logical operation AND

which yields true if both its operands are true, and false otherwise.

Answer 11

&&

Question 12

This operator corresponds to the
Boolean logical operation OR

which yields true if either of its operands is true, thus being false only when both operands are false.

Answer 12

||

Question 13

used to separate two or more expressions that are included where only one expression is expected. When the set of expressions has to be evaluated for a value, only the right- most
expression is considered.

Answer 13

comma operator (,)

Question 14

evaluates an expression, returning one value if that expression evaluates to true, and a different one if the expression evaluates as false.

Symbol is “ ? “

Answer 14

Conditional Ternary Operator

Question 15

modify variables considering the bit patterns that represent the values they store.

Answer 15

Bitwise operators

Question 16

Example of Bitwise operators

Answer 16

( &, |, ^, ~, «,&raquo_space; )

Question 17

_____ is a compile-time operator used to
calculate the size of data type or variable.

Answer 17

sizeof