MyLab Programming with Pearson eText -- Standalone Access Card -- for Starting Out With C++: Early Objects (My Programming Lab)
9th Edition
ISBN: 9780134379548
Author: Tony Gaddis, Judy Walters, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 4.11, Problem 4.35CP
Rewrite the following conditional expressions as if/else statements.
A) j = k > 90 ? 57 : 12;
B) factor = x >= 10 ? y * 22 : y * 35;
C) total += count == 1 ? sales : count * sales;
D) cout << ((num % 2) == 0) ? "Even\n" : "Odd\n");
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Factorial) The factorial of a nonnegative integer n is written n! (pronounced “n factorial”) and is defined as follows:For example, 5!= 5.4.3.2.1 , which is 120. Use while statements in each of the following:A. Write a program that reads a nonnegative integer and computes and prints its factorial.B. Write a program that estimates the value of the mathematical constant e by using the formula:Prompt the user for the desired accuracy of e (i.e., the number of terms in the summation).C. Write a program that computes the value of by using the formula Prompt the user for the desired accuracy of e (i.e., thenumber of terms in the summation).
Suppose that sale and bonus are double variables. Write an if...else statement that assigns a value to bonus as follows: If sale is greater than $20,000, the value assigned to bonus is 0.10, that is 10%; If sale is greater than $10,000 and less than or equal to $20,000, the value assigned to bonus is 0.05, that is 5%; otherwise the value assigned to bonus is 0, that is 0%.
Determine whether the following are valid switch statements. if not, explain why. Assume that n and digit are int variables.
A. switch (n <= 2)
{
case 0:
cout << "Draw." << endl;
break;
case 1:
cout << "Win." << endl;
break;
case 2:
cout << "Lose." << endl;
break;
}
B. switch (digit / 4)
{
case 0,
case 1:
cout << "low." << endl;
break;
case 1,
case 2:
cout << "middle." << endl;
break;
case 3:
cout << "high." << endl;
}
C. switch (n % 6)
{
case 1:
case 2:
case 3:
case 4:
case 5:
cout << n;
break;
case 0:
cout << endl;
break;
}
D. switch (n % 10)
case 2:
{
case 4:
case 6:
case 8:
cout << "Even";
break;
case 1:
case 3:
case 5:
case 7:
cout << "Odd";
break;
}
Chapter 4 Solutions
MyLab Programming with Pearson eText -- Standalone Access Card -- for Starting Out With C++: Early Objects (My Programming Lab)
Ch. 4.1 - Prob. 4.1CPCh. 4.1 - Indicate whether each of the following statements...Ch. 4.1 - Prob. 4.3CPCh. 4.1 - What will the following program segment display?...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that multiplies payRate by...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - TRUE or FALSE: Both of the following if statements...Ch. 4.2 - Write an if statement that performs the following...Ch. 4.2 - Write an if statement that prints The performance...
Ch. 4.2 - Although the following code segments are...Ch. 4.3 - Write an if/else statement that assigns 0.10 to...Ch. 4.3 - Write an if / else statement that assigns 1 to x...Ch. 4.3 - Write an if /else statement that assigns .10 to...Ch. 4.3 - True or false: The following if / else statements...Ch. 4.3 - Will the if / else statement shown on the right...Ch. 4.4 - What will the following program segment display?...Ch. 4.4 - The following program is used in a bookstore to...Ch. 4.4 - Write an if/else if statement that carries out the...Ch. 4.4 - Write an if/else if statement that performs the...Ch. 4.6 - If you execute the following code, what will it...Ch. 4.6 - If you execute the following code, what will it...Ch. 4.7 - Prob. 4.23CPCh. 4.7 - If a = 2, b = 4, and c = 6, indicate whether each...Ch. 4.7 - If a = 2, b = 4, and c = 6, is the following...Ch. 4.7 - Rewrite the following using the ! operator so that...Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.9 - Write an if statement that prints the message The...Ch. 4.9 - Find and fix the errors in the following code...Ch. 4.10 - Prob. 4.30CPCh. 4.10 - Indicate whether each of the following relational...Ch. 4.10 - Prob. 4.32CPCh. 4.10 - Indicate whether each of these character testing...Ch. 4.11 - Rewrite the following if / else statements as...Ch. 4.11 - Rewrite the following conditional expressions as...Ch. 4.11 - Prob. 4.36CPCh. 4.12 - Explain why you cannot convert the following i...Ch. 4.12 - What is wrong with the following switch statement?...Ch. 4.12 - What will the following program segment display?...Ch. 4.12 - Complete the following program segment by writing...Ch. 4.12 - Rewrite the following program segment using a...Ch. 4.13 - Prob. 4.42CPCh. 4.13 - Follow the instructions to complete the following...Ch. 4 - An expression using the greater-than, less-than,...Ch. 4 - Prob. 2RQECh. 4 - The if statement regards an expression with the...Ch. 4 - For an if statement to conditionally execute a...Ch. 4 - In an if / else statement, the if part executes...Ch. 4 - The trailing else in an if / else if statement has...Ch. 4 - If the subexpression on the left of the logical...Ch. 4 - If the subexpression on the left of the || logical...Ch. 4 - The ____ logical operator has higher precedence...Ch. 4 - Logical operators have _____ precedence than...Ch. 4 - The _____ logical operator works best when testing...Ch. 4 - The _____ logical operator works best when testing...Ch. 4 - A variable with _____ scope is only visible when...Ch. 4 - The expression that is tested by a switch...Ch. 4 - A program will fall through to the following case...Ch. 4 - Prob. 16RQECh. 4 - Write an if statement that assigns 100 to x when y...Ch. 4 - Write an if/else statement that assigns 0 to x...Ch. 4 - Write an if / else statement that prints Excellent...Ch. 4 - Write an if statement that sets the variable hours...Ch. 4 - Convert the following conditional expression into...Ch. 4 - Convert the following if/else if statement into a...Ch. 4 - Assume the variables x = 5, y = 6, and z = 8....Ch. 4 - Assume the variables x = 5, y = 6, and z = 8....Ch. 4 - Write a C++ statement that prints the message The...Ch. 4 - Prob. 26RQECh. 4 - Write a C++ statement that prints the message The...Ch. 4 - Prob. 28RQECh. 4 - Using the following chart, write a C++ statement...Ch. 4 - Write one or more C++ statements that assign the...Ch. 4 - The following statement should determine if x is...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should determine if count...Ch. 4 - The following statement should determine if x has...Ch. 4 - Each of the following program segments has errors....Ch. 4 - Sometimes either a switch statement or an if /else...Ch. 4 - Minimum / Maximum Write a program that asks the...Ch. 4 - Roman Numeral Converter Write a program that asks...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Areas of Rectangles The area of a rectangle is the...Ch. 4 - Book Club Points An online book club awards points...Ch. 4 - Change for a Dollar Game Create a change -counting...Ch. 4 - Time Calculator Write a program that asks the user...Ch. 4 - Math Tutor Version 2 This is a modification of the...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - Bank Charges A bank charges 15 per month plus the...Ch. 4 - Prob. 11PCCh. 4 - Color Mixer The colors red, blue, and yellow are...Ch. 4 - Running the Race Write a program that asks for the...Ch. 4 - Personal Best Write a program that asks for the...Ch. 4 - February Days The month of February normally has...Ch. 4 - Body Mass Index Write a program that calculates...Ch. 4 - Fat Gram Calculator Write a program that asks for...Ch. 4 - Prob. 18PCCh. 4 - The Speed of Sound in Gases When traveling through...Ch. 4 - Spectral Analysis If a scientist knows the...Ch. 4 - Freezing and Boiling Points The following table...Ch. 4 - Mobile Service Provider A mobile phone service has...
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