Pearson eText for Starting Out with Java: Early Objects -- Instant Access (Pearson+)

6th Edition

ISBN: 9780137516803

Author: Tony Gaddis

Publisher: PEARSON+

See similar textbooks

Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic program…

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

Videos

Textbook Question

Chapter 4, Problem 7PC

FatGram Class

Design a class with a method that stores the number of calories and fat grams in a food item. The class should have a method that returns the percentage of the calories that come from fat. One gram of fat has 9 calories, so:

Calories from fat = fat grains * 9

The percentage of calories from fat can be calculated as:

Calories from fat ÷ total calories

Demonstrate the class in a program that asks the user to enter the number of calories and the number of fat grams for a food item. The program should display the percentage of calories that come from fat. If the calories from fat are less than 30 percent of the total calories of the food, it should also display a message indicating the food is low in fat.

Because the number of calories from fat cannot be greater than the total number of calories, if the user enters a number for the calories from fat that is greater than the total number of calories, the program should display an error message indicating that the numbers are invalid.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 4, Problem 6PC

Chapter 4, Problem 8PC

Students have asked these similar questions

I need to define and discuss the uses of one monitoring or troubleshooting tool in Windows Server 2019. thank you

I would likr toget help with the following concepts: - Windows Server features - Windows Server versus Windows 10 used as a client-server network

I need to define and discuss the uses of one monitoring or troubleshooting tool in Windows Server 2019. thank you

Chapter 4 Solutions

Pearson eText for Starting Out with Java: Early Objects -- Instant Access (Pearson+)

Ch. 4.1 - Write an if statement that assigns 0 to x when y...Ch. 4.1 - Write an if statement that multiplies payRate by...Ch. 4.1 - Write an if statement that assigns 0.2 to...Ch. 4.1 - Write an if statement that sets the variable fees...Ch. 4.1 - Write an if statement that assigns 20 to the...Ch. 4.1 - Write an if statement that assigns 0 to the...Ch. 4.1 - Write an if statement that displays Goodbye if the...Ch. 4.2 - Write an if-else statement that assigns 20 to the...Ch. 4.2 - Write an if-else statement that assigns 1 to x...Ch. 4.2 - Write an if-else statement that assigns 0.10 to...

Ch. 4.2 - Write an if-else statement that assigns 0 to the...Ch. 4.4 - Write nested if statements that perform the...Ch. 4.4 - Write code that tests the variable x to determine...Ch. 4.5 - What will the following program display? public...Ch. 4.5 - The following program is used in a bookstore to...Ch. 4.6 - Prob. 4.16CP Ch. 4.6 - Assume the variables a = 2, b = 4, and c = 6....Ch. 4.6 - Write an if statement that displays the message...Ch. 4.6 - Write an if statement that displays the message...Ch. 4.7 - Assume the variable name references a String...Ch. 4.7 - Prob. 4.21CP Ch. 4.7 - Prob. 4.22CP Ch. 4.9 - Rewrite the following if-else statements as...Ch. 4.10 - Complete the following program skeleton by writing...Ch. 4.10 - Rewrite the following if-else-if statement as a...Ch. 4.10 - Explain why you cannot convert the following...Ch. 4.10 - What is wrong with the following switch statement?...Ch. 4.10 - What will the following code display? int funny =...Ch. 4 - The if statement is an example of a __________. a....Ch. 4 - This type of expression has a value of either true...Ch. 4 - , , and = = are __________. a. relational...Ch. 4 - , | |, and ! are __________. a. relational...Ch. 4 - Prob. 5MC Ch. 4 - To create a block of statements, you enclose the...Ch. 4 - This is a boolean variable that signals when some...Ch. 4 - How does the character A compare to the character...Ch. 4 - This is an if statement that appears inside...Ch. 4 - Prob. 10MC Ch. 4 - When determining whether a number is inside a...Ch. 4 - Prob. 12MC Ch. 4 - The conditional operator takes this many operands....Ch. 4 - This section of a switch statement is branched to...Ch. 4 - True or False: The = operator and the == operator...Ch. 4 - True or False: A conditionally executed statement...Ch. 4 - Prob. 17TF Ch. 4 - True or False: When an if statement is nested in...Ch. 4 - True or False: When an if statement is nested in...Ch. 4 - True or False: The scope of a variable is limited...Ch. 4 - Find the errors in the following code: 1. //...Ch. 4 - Find the errors in the following code: 2. //...Ch. 4 - Find the errors in the following code: 3. //...Ch. 4 - Prob. 4FTE Ch. 4 - Find the errors in the following code: 5. The...Ch. 4 - Find the errors in the following code: 6. The...Ch. 4 - The following statement should determine whether...Ch. 4 - Find the errors in the following code: 8. The...Ch. 4 - Prob. 9FTE Ch. 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 - Using the following chart, write an if-else-if...Ch. 4 - Write an if statement that sets the variable hours...Ch. 4 - Write nested if statements that perform the...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Write an if statement that prints the message The...Ch. 4 - Write an if-else statement that displays the...Ch. 4 - Convert the following if-else-if statement into a...Ch. 4 - Match the conditional expression with the if-else...Ch. 4 - Explain what is meant by the phrase conditionally...Ch. 4 - Explain why a misplaced semicolon can cause an if...Ch. 4 - Why is it good advice to indent all the statements...Ch. 4 - What happens when you compare two String objects...Ch. 4 - Prob. 5SA Ch. 4 - What risk does a programmer take when not placing...Ch. 4 - Prob. 7SA Ch. 4 - Prob. 8SA Ch. 4 - Why are the relational operators called...Ch. 4 - How do you use private methods in a class to...Ch. 4 - Roman Numerals Write a program that prompts the...Ch. 4 - Time Calculator Write a program that asks the user...Ch. 4 - TestScores Class Design a TestScores class that...Ch. 4 - Software Sales A software company sells a package...Ch. 4 - BankCharges Class A bank charges 10 per month,...Ch. 4 - ShippingCharges Class The Fast Freight Shipping...Ch. 4 - FatGram Class Design a class with a method that...Ch. 4 - Running the Race Write a program that asks for the...Ch. 4 - The Speed of Sound The following table shows the...Ch. 4 - Freezing and Boiling Points The following table...Ch. 4 - Mobile Service Provider A mobile phone service...Ch. 4 - Mobile Service Provider, Part 2 Modify the program...Ch. 4 - Body Mass Index Write a program that calculates...Ch. 4 - Days in a Month Write a class named MonthDays. The...Ch. 4 - Book Club Points Serendipity Booksellers has a...Ch. 4 - Magic Dates The date June 10, 1960, is special...Ch. 4 - Hot Dog Cookout Calculator Assume that hot dogs...Ch. 4 - Roulette Wheel Colors On a roulette wheel, the...Ch. 4 - Wi-Fi Diagnostic Tree Figure 3-23 shows a...Ch. 4 - Restaurant Selector You have a group of friends...

Additional Engineering Textbook Solutions

Find more solutions based on key concepts

It is not necessary to initialize accumulator variables.

Starting Out with Python (4th Edition)

Write a loop that counts the number of uppercase characters that appear in the String object str.

Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)

Write some Java code to create an output stream of type ObjectOutputStream that is named to File and is connect...

Java: An Introduction to Problem Solving and Programming (8th Edition)

Personal Information Class Design a class that holds the following personal data: name, address, age, and phone...

Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)

For each of the following numeric formats, identify the format string used as the input parameter when calling ...

Starting Out With Visual Basic (8th Edition)

The current source in the circuit shown generates the current pulse Find (a) v (0); (b) the instant of time gr...

Electric Circuits. (11th Edition)

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.