STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 17PC
Fat Gram Calculator
Write a
One gram of fat has 9 calories, so
Calories from fat = fat grams* 9
The percentage of calories from fat can be calculated as
Calories from fat + total calories
Input Validation: The program should make sure that the number of calories is greater than 0, the number of fat grams is 0 or more, and the number of calories from fat is not greater than the total number of calories.
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Question
Write a program that asks for the number of calories
and fat grams in a food. The program should display
the percentage of calories that come from fat. If the
calories from fat are less than 30% of the total calories
of the food, it should also display a message indicating
that the food is low in fat. One gram of fat has 9
calories, so Calories from fat = fat grams * 9. The
percentage of calories from fat can be calculated as
Calories from fat total calories . Input Validation:
Make sure the number of calories and fat grams are
not less than 0. Also, the number of calories from fat
cannot be greater than the total number of calories. If
that happens, display an error message indicating that
either the calories or fat grams were incorrectly
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Retail price calculator
Write a program that asks the user to enter an item’s wholesale cost and its markup percentage. It should then display the item’s retail price. For example:
• If an item’s wholesale cost is 5.00 and its markup percentage is 100 percent, then the item’s retail price is 10.00.• If an item’s wholesale cost is 5.00 and its markup percentage is 50 percent, then the item’s retail price is 7.50.
The program should have a method named calculateRetail that receives the wholesale cost and the markup percentage as arguments and returns the retail price of the item.
Time CalculatorWrite a program that asks the user to enter a number of seconds.-There are 60 seconds in a minute. If the number of seconds entered by the user is greater than or equal to 60, the program should display the number of minutes and leftover seconds in that many seconds.-There are 3,600 seconds in an hour. If the number of seconds entered by the user is greater than or equal to 3,600, the program should display the number of hours, minutes, and leftover seconds in that many seconds.-There are 86,400 seconds in a day. If the number of seconds entered by the user is greater than or equal to 86,400, the program should display the number of days, hours, minutes, and leftover seconds in that many seconds.
Chapter 4 Solutions
STARTING OUT WITH C++ MPL
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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