Concepts of Programming Languages-Ch 7-8

Question 1

7: In C-based languages, operator precedence order from high to low is

Accepted Answer

*, /, +, ++, +, -

Question 2

8: Counter-Controlled Loops

Accepted Answer

are more complex than logically controlled loops, have loop variables that contain the count value in a loop

Question 3

8: A Control Structure is

Accepted Answer

a control statement & a collection of statements it controls

Question 4

7: Operator overloading means

Accepted Answer

an operator can have multiple uses

Question 5

8: Unconditional branching

Accepted Answer

resulted in what is known as spaghetti code, was implemented with the 'goto' statement in some languages

Question 6

8: Logically Controlled Loops

Accepted Answer

are based on evaluation of a Boolean expression, can be built from a counter-controlled loop, & selection are the only essential control structures

Question 7

7: A program has the property of referential transparency

Accepted Answer

if 2 expressions w/same value can be substituted elsewhere

Question 8

7: Coercion in expressions

Accepted Answer

allows operators of different types without casting

Question 9

8: A design issue for multiple-selection statements is

Accepted Answer

if single, compound, or statement sequences may be selected, if only one or multiple clauses can be executed, if none of the clauses satisfy the selection condition

Question 10

8: Selection and Iterative Statements are collectively known as

Accepted Answer

Control Statements

Question 11

7: In most programming languages

Accepted Answer

unary operators have one operand, binary operators are infix

Question 12

7: Associativity rules of C++ dictate that

Accepted Answer

operators of equal precedence are evaluated left to right

Question 13

7: The conditional expression if...else is the only one allowed in C++

Accepted Answer

False

Question 14

7: Parentheses cannot be used to alter precedence

Accepted Answer

False

Question 15

8: The Switch statement in C and C++ (also Java and JavaScript) is an example of

Accepted Answer

a multiple-selector statement

Question 16

7: Type conversions are either

Accepted Answer

narrowing or widening

Question 17

8: Most useful programs consist entirely of assignment statements

Accepted Answer

False

Question 18

7: Expressions are

Accepted Answer

the fundamental means of specifying computations in programs, governed by syntax of a language

Question 19

8: "if <control-expression>; then clause; else clause" is an example of

Accepted Answer

a two-way selection statement

Question 20

8: An iterative statement

Accepted Answer

causes one or more statements to be executed zero+ times, is also known as a loop

Concepts of Programming Languages-Ch 7-8

Questions 20

Concepts of Programming Languages-Ch 7-8

Questions 20