Starting Out with Java: From Control Structures through Objects (6th Edition)
Starting Out with Java: From Control Structures through Objects (6th Edition)
6th Edition
ISBN: 9780133957051
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 2, Problem 12MC

Which Scanner class method would you use to read a double as input?

  1. a. nextDouble
  2. b. getDouble
  3. c. readDouble
  4. d. None of these; you cannot read a double with the Scanner class
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Ask the user to enter the month of the year (number 1 through 12): “Enter the month of the year - number 1 to 12”b. Get the month using a Scannerc. checks for invalid input (i.e. numbers that are not 1 – 12) and terminates the programusing System.exit(1)if input is invalidd. Prints the name of the month: “The month is XXXXX”Now, this time, write a class, NumberToMonthUsingSwitch, that does the same but uses the switch statement.Tips Use the switch statement along with case and break Use the System.exit(1) in the default to terminate the programSubmission Copy and paste your code Screen shot the console with user input of three example months (one invalid input, two anymonth)Sample RunEnter the month of the year - number 1 to 1277Invalid InputEnter the month of the year - number 1 to 122The month is FebruaryEnter the month of the year - number 1 to 1210The month is October
10-6. Addition: One common problem when prompting for numerical input occurs when people provide text instead of numbers. When you try to convert the input to an int, you’ll get a ValueError. Write a program that prompts for two numbers. Add them together and print the result. Catch the ValueError if either input value is not a number, and print a friendly error message. Test your program by entering two numbers and then by entering some text instead of a number. 10-7. Addition Calculator: Wrap your code from 10-6 in a while loop so the user can continue entering numbers even if they make a mistake and enter text instead of a number.
Task 5: ScanningMoney.java Write a program that reads User Input using the Scanner class. Your program should ask the user how many quarters, nickels, dimes, and pennies they have, then display the total amount in dollars. This can be done in main method. Expected Output The highlighted text denotes text that you type into the console yourself. It is not printed by the program. Due to floating point values being used your answer may have the trailing 1 or not. ----JGRASP exec: java ScanningMoney Quarters: 4 Dimes: 3 Nickels: 2 Pennies: 1 You have $1.4100000000000001 ----JGRASP: operation complete.

Chapter 2 Solutions

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

Ch. 2.3 - What will the following program display on the...Ch. 2.4 - Which of the following are illegal variable names...Ch. 2.4 - Prob. 2.13CPCh. 2.4 - Prob. 2.14CPCh. 2.4 - Prob. 2.15CPCh. 2.4 - A program declares a float variable named number,...Ch. 2.4 - Prob. 2.17CPCh. 2.4 - Prob. 2.18CPCh. 2.4 - Prob. 2.19CPCh. 2.4 - Prob. 2.20CPCh. 2.4 - What is wrong with the following statement? char...Ch. 2.5 - Prob. 2.22CPCh. 2.5 - Prob. 2.23CPCh. 2.6 - Write statements using combined assignment...Ch. 2.7 - The following declaration appears in a program:...Ch. 2.7 - The variable a is a float and the variable b is a...Ch. 2.9 - Write a statement that declares a String variable...Ch. 2.9 - Assume that stringLength is an int variable. Write...Ch. 2.9 - Prob. 2.29CPCh. 2.9 - Prob. 2.30CPCh. 2.9 - Prob. 2.31CPCh. 2.11 - Prob. 2.32CPCh. 2.11 - How are documentation comments different from...Ch. 2.14 - Prob. 2.34CPCh. 2.14 - Write code that will display each of the dialog...Ch. 2.14 - Write code that displays an input dialog asking...Ch. 2.14 - Prob. 2.37CPCh. 2 - Every complete statement ends with a __________....Ch. 2 - The following data 72 'A' Hello World 2.8712 are...Ch. 2 - A group of statements, such as the contents of a...Ch. 2 - Which of the following are not valid assignment...Ch. 2 - Which of the following are nor valid println...Ch. 2 - The negation operator is __________. a. unary b....Ch. 2 - This key word is used to declare a named constant....Ch. 2 - These characters mark the beginning of a...Ch. 2 - These characters mark the beginning of a...Ch. 2 - These characters mark the beginning of a...Ch. 2 - Which Scanner class method would you use to read a...Ch. 2 - Which Scanner class method would you use to read a...Ch. 2 - You can use this class to display dialog boxes. a....Ch. 2 - Prob. 14MCCh. 2 - Prob. 15MCCh. 2 - True or False: A left brace in a Java program is...Ch. 2 - True or False: A variable must be declared before...Ch. 2 - True or False: Variable names may begin with a...Ch. 2 - True or False: You cannot change the value of a...Ch. 2 - True or False: Comments that begin with / / can be...Ch. 2 - True or False: If one of an operators operands is...Ch. 2 - What will the following code segments print on the...Ch. 2 - int x = 0, y=2; x = y 4; System.out.println(x +...Ch. 2 - System.out.print(I am the incredible);...Ch. 2 - System.out.print(Be careful\n);...Ch. 2 - int a, x = 23; a = x % 2; System.out.println(x +...Ch. 2 - Find the Error There are a number of syntax errors...Ch. 2 - Show how the double variables temp, weight, and...Ch. 2 - Prob. 2AWCh. 2 - Write assignment statements that perform the...Ch. 2 - Assume the variables result, w, x, y, and z are...Ch. 2 - Prob. 5AWCh. 2 - Modify the following program so it prints two...Ch. 2 - What will the following code output? int apples =...Ch. 2 - What will the following code output? double d =...Ch. 2 - What will the following code output? String...Ch. 2 - What will the following code output? String...Ch. 2 - Convert the following pseudocode to Java code. Be...Ch. 2 - Prob. 12AWCh. 2 - Write the code to set up all the necessary objects...Ch. 2 - Prob. 14AWCh. 2 - A program has a float variable named total and a...Ch. 2 - Is the following comment a single-line style...Ch. 2 - Is the following comment a single-line style...Ch. 2 - Describe what the phrase self-documenting program...Ch. 2 - Prob. 4SACh. 2 - Prob. 5SACh. 2 - What does a variable declaration tell the Java...Ch. 2 - Prob. 7SACh. 2 - What things must be considered when deciding on a...Ch. 2 - Briefly describe the difference between variable...Ch. 2 - What is the difference between comments that start...Ch. 2 - Briefly describe what programming style means. Why...Ch. 2 - Assume that a program uses the named constant PI...Ch. 2 - Assume the file Sales Average, java is a Java...Ch. 2 - Prob. 14SACh. 2 - Name, Age, and Annual Income Write a program that...Ch. 2 - Name and Initials Write a program that has the...Ch. 2 - Personal Information Write a program that displays...Ch. 2 - Star Pattern Write a program that displays the...Ch. 2 - Sales Prediction The East Coast sales division of...Ch. 2 - Land Calculation One acre of land is equivalent to...Ch. 2 - Sales Tax Write a program that will ask the user...Ch. 2 - Cookie Calories A bag of cookies holds 40 cookies....Ch. 2 - Miles-per-Gallon A cars miles-per-gallon (MPG) can...Ch. 2 - Test Average Write a program that asks the user to...Ch. 2 - Circuit Board Profit An electronics company sells...Ch. 2 - Prob. 12PCCh. 2 - Restaurant Bill Write a program that computes the...Ch. 2 - Male and Female Percentages Write a program that...Ch. 2 - Stock Commission Kathryn bought 600 shares of...Ch. 2 - Energy Drink Consumption A soft drink company...Ch. 2 - Ingredient Adjuster A cookie recipe calls for the...Ch. 2 - Word Game Write a program that plays a word game...Ch. 2 - Stock Transaction Program Last month Joe purchased...

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