FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 4: Making Decisions

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 1

Multiple Choice

Review LaterAdd Note

Review Later

What is the output of the following segment of code if the value 4 is input by the user? int num; int total = 0; cout << "Enter a number from 1 to 10: "; cin >> num; switch (num) { case 1: case 2: $\quad$ total = 5; case 3: $\quad$ total = 10; case 4: $\quad$ total = total + 3; Case 8: $\quad$ total = total + 6; default: $\quad$ total = total + 4; } cout << total << endl;

A) 0
B) 3
C) 13
D) 23
E) None of these

Correct Answer

verified

Show Answer

Question 2

Multiple Choice

Review LaterAdd Note

Review Later

Given the if/else statement: If (a < 5) B = 12; Else D = 30; Which of the following performs the same operation?

A) a < 5 ? b = 12 : d = 30;
B) b < 5 ? b = 12 : d = 30;
C) a >= 5 ? d = 30 : b = 12;
D) d = 30 ? b = 12 : a = 5;
E) None of these

Correct Answer

verified

Show Answer

Question 3

True/False

Review LaterAdd Note

Both of the following if statements perform the same operation. 1. if (sales > 10000) $\quad$$\quad$ commissionRate = 0.15; 2. if (sales > 10000) commissionRate = 0.15;

This operator represents the logical OR:

What is the value of the following expression? True || False

If you intend to place a block of statements within an if statement, you must place __________ around the block:

When an if statement is placed within the conditionally-executed code of another if statement, this is known as

What is the value of donuts after the following statement executes? int donuts = 10; if (donuts = 1) $\quad$ donuts = 0; else $\quad$ donuts += 2;

The conditional operator takes two operands.

What is the value of the following expression? True && true

Given the following code segment, what is the output? int x = 1, y = 1, z = 1; y = y + z; x = x + y; cout << "result = " << (x < y ? y : x) << endl;

After the following code executes, what is the output if user enters 0? int x = -1; cout << "Enter a 0 or 1: "; cin >> x; if (c) $\quad$ cout << "true" << endl; else $\quad$ cout << "False" << endl;

What will be displayed after the following statements execute? int funny = 7, serious = 15; funny = serious % 2; if (funny != 1) { $\quad$ funny = 0; $\quad$ serious = 0; } else if (funny == 2) { $\quad$ funny = 10; $\quad$ serious = 10; } else { $\quad$ funny = 1; $\quad$ serious = 1; } cout << funny << " " << serious << endl;

Which value can be entered to cause the following code segment to display the message "That number is acceptable"? Int number; Cin >> number; If (number > 10 && number < 100) Cout << "That number is acceptable.\n"; Else Cout << "That number is not acceptable.\n";

Whereas < is called a relational operator, x < y is called a(n)

The following code correctly determines whether x contains a value in the range of 0 through 100, inclusive. if (x > 0 && <= 100)

This statement uses the value of a variable or expression to determine where the program will branch to.

If you place a semicolon after the statement: If (x < y)

These operators connect two or more relational expressions into one, or reverse the logic of an expression.

What is the value of the following expression? True && False