Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)

4th Edition

ISBN: 9780134787961

Author: Tony Gaddis, Godfrey Muganda

Publisher: PEARSON

See similar textbooks

Concept explainers

Max Function

Statistical function is of many categories. One of them is a MAX function. The MAX function returns the largest value from the list of arguments passed to it. MAX function always ignores the empty cells when performing the calculation.

Power Function

A power function is a type of single-term function. Its definition states that it is a variable containing a base value raised to a constant value acting as an exponent. This variable may also have a coefficient. For instance, the area of a circle can be…

Videos

Textbook Question

Chapter 7, Problem 6PC

Driver’s License Exam

The local Driver’s License Office has asked you to write a program that grades the written portion of the driver’s license exam. The exam has 20 multiple choice questions. Here are the correct answers:

1. B
2. D
3. A
4. A
5. C
6. A
7. B
8. A
9. C
10. D
11. B
12. C
13. D
14. A
15. D
16. C
17. C
18. B
19. D
20. A

A student must correctly answer 15 of the 20 questions to pass the exam.

Write a class named DriverExam that holds the correct answers to the exam in an array field. The class should also have an array field that holds the student’s answers. The class should have the following methods:

passed. Returns true if the student passed the exam, or false if the student failed
totalCorrect. Returns the total number of correctly answered questions
totalIncorrect. Returns the total number of incorrectly answered questions
questionsMissed. An int array containing the question numbers of the questions that the student missed

Demonstrate the class in a complete program that asks the user to enter a student’s answers, and then displays the results returned from the DriverExam class’s methods.

Input Validation: Only accept the letters A, B, C, or D as answers.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 7, Problem 5PC

Chapter 7, Problem 7PC

Students have asked these similar questions

Fat Percentage Calculator One gram of fat has 9 calories. If you know the number of fat grams in a particular food, you can use the following formula to calculate the number of calories that come from fat in that food: Calories from fat = Fat grams × 9 If you know the food’s total calories, you can use the following formula to calculate the percentage of calories from fat: Percentage of calories from fat = Calories from fat ÷ Total calories Create an application that allows the user to enter: • The total number of calories for a food item • The number of fat grams in that food item The application should calculate and display: • The number of calories from fat • The percentage of calories that come from fat Also, the application’s form should have a CheckBox that the user can check if he or she wants to know whether the food is considered low fat. (If the calories from fat are less than 30% of the total calories of the food, the food is considered low fat.) Use the following test data…

20. Random Number Guessing GameWrite a program that generates a random number in the range of 1 through 100, and asks the user to guess what the number is. If the user’s guess is higher than the random number, the program should display “Too high, try again.” If the user’s guess is lower than the random number, the program should display “Too low, try again.” If the user guesses the number, the application should congratulate the user and generate a new random number so the game can start over.Optional Enhancement: Enhance the game so it keeps count of the number of guesses that the user makes. When the user correctly guesses the random number, the program should display the number of guesses. USE RAPTOR PROGRAM

Geometry Calculator Write a program that displays the following menu: Geometry Calculator 1. Calculate the Area of a Circle 2. Calculate the Area of a Rectangle 3. Calculate the Area of a Triangle 4. Quit Enter your choice (1-4): If the user enters 1, the program should ask for the radius of the circle and then display its area. Use the following formula: area = Pi*r^2 Use 3.14159 for and the radius of the circle for r. If the user enters 2, the program should ask for the length and width of the rectangle and then display the rectangle’s area. Use the following formula: area = length * width If the user enters 3 the program should ask for the length of the triangle’s base and its height, and then display its area. Use the following formula: area = base * height * .5 If the user enters 4, the program should end. Input Validation: Display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu. Do not accept negative values for…

Chapter 7 Solutions

Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)

Ch. 7.1 - Write statements that create the following arrays:...Ch. 7.1 - Whats wrong with the following array declarations?...Ch. 7.1 - Prob. 7.3CP Ch. 7.1 - Prob. 7.4CP Ch. 7.1 - Prob. 7.5CP Ch. 7.1 - Prob. 7.6CP Ch. 7.1 - Prob. 7.7CP Ch. 7.1 - Prob. 7.8CP Ch. 7.2 - Prob. 7.9CP Ch. 7.2 - Prob. 7.10CP

Ch. 7.2 - A program has the following declaration: double[]...Ch. 7.2 - Look at the following statements: int[] a = { 1,...Ch. 7.3 - Prob. 7.13CP Ch. 7.3 - Write a method named zero, which accepts an int...Ch. 7.6 - Prob. 7.15CP Ch. 7.7 - Recall that we discussed a Rectangle class in...Ch. 7.10 - Prob. 7.17CP Ch. 7.11 - What value in an array does the selection sort...Ch. 7.11 - How many times will the selection sort swap the...Ch. 7.11 - Prob. 7.20CP Ch. 7.11 - Prob. 7.21CP Ch. 7.11 - If a sequential search is performed on an array,...Ch. 7.13 - What import statement must you include in your...Ch. 7.13 - Write a statement that creates an ArrayList object...Ch. 7.13 - Write a statement that creates an ArrayList object...Ch. 7.13 - Prob. 7.26CP Ch. 7.13 - Prob. 7.27CP Ch. 7.13 - Prob. 7.28CP Ch. 7.13 - Prob. 7.29CP Ch. 7.13 - Prob. 7.30CP Ch. 7.13 - Prob. 7.31CP Ch. 7 - Prob. 1MC Ch. 7 - Prob. 2MC Ch. 7 - Prob. 3MC Ch. 7 - Prob. 4MC Ch. 7 - Array bounds checking happens. a. when the program...Ch. 7 - Prob. 6MC Ch. 7 - Prob. 7MC Ch. 7 - Prob. 8MC Ch. 7 - Prob. 9MC Ch. 7 - Prob. 10MC Ch. 7 - Prob. 11MC Ch. 7 - To delete an item from an ArrayList object, you...Ch. 7 - Prob. 13MC Ch. 7 - Prob. 14TF Ch. 7 - Prob. 15TF Ch. 7 - Prob. 16TF Ch. 7 - Prob. 17TF Ch. 7 - Prob. 18TF Ch. 7 - True or False: The Java compiler does not display...Ch. 7 - Prob. 20TF Ch. 7 - True or False: The first size declarator in the...Ch. 7 - Prob. 22TF Ch. 7 - Prob. 23TF Ch. 7 - int[] collection = new int[-20];Ch. 7 - Prob. 2FTE Ch. 7 - Prob. 3FTE Ch. 7 - Prob. 4FTE Ch. 7 - Prob. 5FTE Ch. 7 - Prob. 1AW Ch. 7 - Prob. 2AW Ch. 7 - Prob. 3AW Ch. 7 - In a program you need to store the populations of...Ch. 7 - In a program you need to store the identification...Ch. 7 - Prob. 6AW Ch. 7 - Prob. 7AW Ch. 7 - Prob. 8AW Ch. 7 - Prob. 9AW Ch. 7 - Prob. 10AW Ch. 7 - Prob. 11AW Ch. 7 - Prob. 1SA Ch. 7 - Prob. 2SA Ch. 7 - Prob. 3SA Ch. 7 - Prob. 4SA Ch. 7 - Prob. 5SA Ch. 7 - Prob. 6SA Ch. 7 - Prob. 7SA Ch. 7 - Prob. 8SA Ch. 7 - Prob. 9SA Ch. 7 - Rainfall Class Write a RainFall class that stores...Ch. 7 - Payroll Class Write a Payroll class that uses the...Ch. 7 - Charge Account Validation Create a class with a...Ch. 7 - Charge Account Modification Modify the charge...Ch. 7 - Prob. 5PC Ch. 7 - Drivers License Exam The local Drivers License...Ch. 7 - Magic 8 Ball Write a program that simulates a...Ch. 7 - Grade Book A teacher has five students who have...Ch. 7 - Grade Book Modification Modify the grade book...Ch. 7 - Average Steps Taken A Personal Fitness Tracker is...Ch. 7 - Array Operations Write a program with an array...Ch. 7 - 12.1994 Gas Prices In the student sample programs...Ch. 7 - Sorted List of 1994 Gas Prices Note: This...Ch. 7 - Name Search If you have downloaded this books...Ch. 7 - Population Data If you have downloaded this books...Ch. 7 - World Series Champions If you have downloaded this...Ch. 7 - 2D Array Operations Write a program that creates a...Ch. 7 - Prob. 18PC Ch. 7 - Trivia Game In this programming challenge, you...Ch. 7 - Prob. 20PC

Additional Engineering Textbook Solutions

Find more solutions based on key concepts

Course Grades In a course, a teacher gives the following tests and assignments: A lab activity that is observed...

Starting Out with Java: From Control Structures through Objects (6th Edition)

T F Classes and structures in C++ are very similar.

Starting Out with C++ from Control Structures to Objects (8th Edition)

What is wrong with the following while statement? 1 while (z = 0) { 2 sum += z; 3 }

Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)

In what year was Plankalkl designed? In what year was that design published?

Concepts Of Programming Languages

Write the declaration for class B. The classs members should be as follows: m, an integer. This variable should...

Starting Out with Java: Early Objects (6th Edition)

What output will be produced by the following code?

Java: An Introduction to Problem Solving and Programming (7th 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.