Absolute Java (6th Edition)
6th Edition
ISBN: 9780134041674
Author: Walter Savitch, Kenrick Mock
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 10STE
Write an import statement that makes the Scanner class available to your
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Overview
In this task, you should try using the Scanner class to read data from the keyboard. This data should be stored in variables in your program and then printed on screen.
Task
You should write a class called Story that should include a main method. This programs should create a fairy tale for a child. The program is based on a completed story, but some words must be replaced with such as the user may enter. The fairy tale you are going to based on are the following:
The little ant (1)
There was once a small, small ant that lived with its (2) and its (3) siblings in an anthill, by a large (4) in the forest. The little ant is called (1). For the most part, (1) and his siblings used to work on carrying (5) and (6) to the stack, but today it was (7), so (1) was free.
The words that are crossed out are the words that your program should ask the user for.
In total, there are seven entries the user must make. The program must save these entries in separate variables and then print…
Create a flowchart and modify the code.
INSTRUCTION:
Create a new class called CalculatorWithMod. This class should be a sub class of the base class Calculator. This class should also have an additional method for calculating the modulo. The modulo method should only be seen at the sub class, and not the base class! Include exception handling for instances when dividing by 0 or calculating the modulo with 0. You would need to use throw, try, and catch. The modulo (or "modulus" or "mod") is the remainder after dividing one number by another.Example: 20 mod 3 equals 2Because 20/3 = 6 with a remainder of 2
CODE TO COPY:
#include <iostream>
using namespace std;
class Calculator{public:Calculator(){printf("Welcome to my Calculator\n");
}
int addition(int a, int b);int subtraction(int a, int b);int multiplication(int a, int b);float division(int a, int b);};
int Calculator::addition(int a, int b){return (a+b);}
int Calculator::subtraction(int a, int b){return (a-b);}
int…
What import statement do you write in a program that uses the JOptionPane class?
Chapter 2 Solutions
Absolute Java (6th Edition)
Ch. 2 - Prob. 1STECh. 2 - Write Java statements that will cause the...Ch. 2 - What is the difference between System.out.println...Ch. 2 - Prob. 4STECh. 2 - What output is produced by the following code?
Ch. 2 - What output is produced by the following code? For...Ch. 2 - Write a Java statement to output the value in...Ch. 2 - What output is produced by the following code?...Ch. 2 - Suppose the class Robot is a part of the standard...Ch. 2 - Write an import statement that makes the Scanner...
Ch. 2 - Prob. 11STECh. 2 - Write a line of code that uses the object frank...Ch. 2 - Write a complete Java program that reads in a line...Ch. 2 - Write a complete Java program that reads in a line...Ch. 2 - Something could go wrong with the following code....Ch. 2 - Suppose your code creates an object of the class...Ch. 2 - Continue with the object keyboard from Self-Test...Ch. 2 - Prob. 18STECh. 2 - What is missing from the following code, which...Ch. 2 - The Babylonian algorithm to compute the square...Ch. 2 - (This is a version with input of an exercise from...Ch. 2 - Write a program that reads in two numbers typed on...Ch. 2 - John travels a distance of 55 miles at an average...Ch. 2 - Grade point average (GPA) in a 4-point scale is...Ch. 2 - (This is a better version of an exercise from...Ch. 2 - Write a program that determines the change to be...Ch. 2 - Write a program that reads in a string containing...Ch. 2 - (This is a better version of an exercise from...Ch. 2 - Write a program that inputs the name, quantity,...Ch. 2 - Write a program that calculates the total grade...Ch. 2 - (This is a variant of an exercise from Chapter 1.)...Ch. 2 - (This is an extension of an exercise from Chapter...Ch. 2 - From Programming Project 10 in Chapter 1,...
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- 8. True or False: The Import Statement must be written between the package statement and the class declaration. If there are no package statements, then the import statement should be the first line in the source file. True False Give an explanation for the answer. Thank youarrow_forwardCheck this code for this assignment: It runs successfully on Netbeans IDE but there is no output.// Create a Scanner object to read user input Scanner input = new Scanner(System.in); // Prompt the user to enter the street number System.out.print("Enter street number: "); int streetNumber = input.nextInt(); input.nextLine(); // Prompt the user to enter the street name System.out.print("Enter street name: "); String streetName = input.nextLine(); // Prompt the user to enter the number of rooms in the house System.out.print("Enter number of rooms: "); int numRooms = input.nextInt(); input.nextLine(); // Create an array to store the room types String[] roomTypes = { "living", "dining", "bedroom1", "bedroom2", "kitchen", "bathroom" }; // Create an array to store the area of each room int[] roomAreas = new int[6]; // Prompt the user to enter the area of each room…arrow_forwardInstructions: In the code editor, you are provided with a treasureChestMagic() function which has the following description: Return type - void Name - treasureChestMagic Parameters - an address of an integer Description - updates the value of a certain integer randomly You do not have to worry about how the treasureChestMagic() function works. All you have to do is ask the user for an integer and then call the treasureChestMagic() function, passing the address of that integer you just asked. Finally, print the updated value of the integer inputted by the user. Please create a main code for my function that works with this. This is my code: #include<stdio.h>#include<math.h> void treasureChestMagic(int*); int main(void) { // TODO: Write your code here return 0;} void treasureChestMagic(int *n) { int temp = *n; int temp2 = temp; *n = *n + 5 - 5 * 5 / 5; temp2 = (int) pow(2, 3); if(temp % 3 == 0) { *n = temp * 10; } else if(temp %…arrow_forward
- (Creating Custom Exception Class) Write a Password class that stores a password string. Passwords must contain at least seven alpha-numeric characters, with at least one letter and one digit. Also write an InvalidPasswordException class that extends Exception. The Password constructor should throw an InvalidPasswordException, which should report an appropriate message based on a given string (e.g. if the string contains no digits, the exception should report this fact). Write a GUI program to prompt the user to enter a password and report an InvalidPasswordException if an invalid password is entered. Some sample screenshots are shown below:arrow_forwardCan a test class be added to the program?arrow_forward(Creating Custom Exception Class) Write a Password class that stores a password string. Passwords must contain at least seven alpha-numeric characters, with at least one letter and one digit. Also write an InvalidPasswordException class that extends Exception. The Password constructor should throw an InvalidPasswordException, which should report an appropriate message based on a given string (e.g. if the string contains no digits, the exception should report this fact). Write a GUI program to prompt the user to enter a password and report an InvalidPasswordException if an invalid password is entered. Please teach and help me how to deisgn the program based on the two files given .Some sample screenshots are shown below: InvalidPasswordException.java public class InvalidPasswordException extends Exception{ public InvalidPasswordException (String errMsg){ super(errMsg); } } Password.java public class Password {private String passwordstr; public…arrow_forward
- Please be aware that your score will be zero if your codes are the same as others'. Do not cheat. 填空题 The JDK command to compile a class in the file Test.java is The main method header is written as Suppose a Scanner object is created as follows: Scanner input = new Scanner(System.in); What method do you use to read a double type number? What is y after the following statement is executed? x = -1; y = (x < 0) ? 10: -10; What is the index variable for the element at the first row and first column in array a? 1. 2. 3. 4. 5.arrow_forwardWhich statement of the following is the most appropriate? Group of answer choices You don’t have to write every container class from scratch. The C++ Standard Template Library (STL) provides couple container classes that are useful in some settings. You may have to write every container class from scratch. The C++ Standard Template Library (STL) does not provide any container classe. You don’t have to write every container class from scratch. The C++ Standard Template Library (STL) provides four container classes that are useful in many different settings. You don’t have to write every container class from scratch. The C++ Standard Template Library (STL) provides a variety of container classes that are useful in many different settings.arrow_forwardCode to catch an UnderflowExceptionarrow_forward
- use this code template to help you continue: private boolean included Indicates whether the item should be taken or not public Item(String name, double weight, int value) Initializes the Item’s fields to the values that are passed in; the included Field is initialized to false public Item(Item other) Initializes this item’s fields to the be the same as the other item’s public void setIncluded(boolean included) Setter for the item’s included field (you don’t need setters for the other fields) Given code: public class Item { private final String name; private final double weight; private final int value; public Item(String name, double weight, int value) { this.name = name; this.weight = weight; this.value = value; } static int max(int a, int b) { if(a > b) return a; return b; } // function to print the items which are taken static void printSelection(int W, Item[] items, int…arrow_forward~Java Program ~ Write a small application with a GUI that could be the basis of a larger application. Your application will allow someone to enter a user nameand password to separate text fields. When the user clicks the Login button, you should check whether the string in the name field matches "John" and the string in the password field matches "myPassword". If both match, put the message You have been logged in on a result label. If they don't match, put the message Sorry, that password is not valid on the result label.arrow_forwardFor variables with private access modifier in a class, select all the apply a. b. Cannot be accessed using get methods Can be directly accessed outside the class C. Cannot be directly accessed outside the class d. Can be accessed using get methodsarrow_forward
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