Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 11, Problem 7AW
The method getValueFromFile is public and returns an int. It accepts no arguments. The method is capable of throwing an IOException and a FileNotFoundException. Write the header for this method.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Variables name: Choose meaningful and descriptive names. No x, y … etc. Use lowercase. If the name consists of several words, concatenate all in one, uselowercase for the first word, and capitalize the first letter of each subsequent word inthe name. For example, the variables radius and area, and the method computeArea.3. File type: only JAVA file is allowed. Name it as Assignment2. Java5. Please add the appropriate comments for each step you add. In the top of the program, addyour name, time of starting writing the code and title of the assignment. Extra informationwould be great
. The TryParse methods throw an exception if the string argument cannot be
converted
InvalidDateException
An event management company needs to keep track of all the events they organize in the year 2017. They have the dates in which all the events that had happened in the whole year. You are the technical head of the company write a program to check whether the entered date is valid and find the count of events for each quarter for the year 2017. The program asks for dates as input. If the date is not valid it prints an error message.Strictly adhere to the Object-Oriented specifications given in the problem statement. All class names, member variable names, and function names should be the same as specified in the problem statement.
The class named InvalidDateException inherits the exception class and includes a member function that returns the following message "InvalidDateException: Please enter the date again".
In the Main method, obtain the number of events from the user in the console. Get the date for each event. If the date is invalid, throw…
Chapter 11 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Ch. 11.1 - Prob. 11.1CPCh. 11.1 - Prob. 11.2CPCh. 11.1 - Prob. 11.3CPCh. 11.1 - Prob. 11.4CPCh. 11.1 - Prob. 11.5CPCh. 11.1 - Prob. 11.6CPCh. 11.1 - Prob. 11.7CPCh. 11.1 - Prob. 11.8CPCh. 11.1 - Prob. 11.9CPCh. 11.1 - When does the code in a finally block execute?
Ch. 11.1 - What is the call stack? What is a stack trace?Ch. 11.1 - Prob. 11.12CPCh. 11.1 - Prob. 11.13CPCh. 11.1 - Prob. 11.14CPCh. 11.2 - What does the throw statement do?Ch. 11.2 - Prob. 11.16CPCh. 11.2 - Prob. 11.17CPCh. 11.2 - Prob. 11.18CPCh. 11.2 - Prob. 11.19CPCh. 11.3 - What is the difference between a text file and a...Ch. 11.3 - What classes do you use to write output to a...Ch. 11.3 - Prob. 11.22CPCh. 11.3 - What class do you use to work with random access...Ch. 11.3 - What are the two modes that a random access file...Ch. 11.3 - Prob. 11.25CPCh. 11 - Prob. 1MCCh. 11 - Prob. 2MCCh. 11 - Prob. 3MCCh. 11 - Prob. 4MCCh. 11 - FileNotFoundException inherits from __________. a....Ch. 11 - Prob. 6MCCh. 11 - Prob. 7MCCh. 11 - Prob. 8MCCh. 11 - Prob. 9MCCh. 11 - Prob. 10MCCh. 11 - Prob. 11MCCh. 11 - Prob. 12MCCh. 11 - Prob. 13MCCh. 11 - Prob. 14MCCh. 11 - Prob. 15MCCh. 11 - This is the process of converting an object to a...Ch. 11 - Prob. 17TFCh. 11 - Prob. 18TFCh. 11 - Prob. 19TFCh. 11 - True or False: You cannot have more than one catch...Ch. 11 - Prob. 21TFCh. 11 - Prob. 22TFCh. 11 - Prob. 23TFCh. 11 - Prob. 24TFCh. 11 - Find the error in each of the following code...Ch. 11 - // Assume inputFile references a Scanner object,...Ch. 11 - Prob. 3FTECh. 11 - Prob. 1AWCh. 11 - Prob. 2AWCh. 11 - Prob. 3AWCh. 11 - Prob. 4AWCh. 11 - Prob. 5AWCh. 11 - Prob. 6AWCh. 11 - The method getValueFromFile is public and returns...Ch. 11 - Prob. 8AWCh. 11 - Write a statement that creates an object that can...Ch. 11 - Write a statement that opens the file...Ch. 11 - Assume that the reference variable r refers to a...Ch. 11 - Prob. 1SACh. 11 - Prob. 2SACh. 11 - Prob. 3SACh. 11 - Prob. 4SACh. 11 - Prob. 5SACh. 11 - Prob. 6SACh. 11 - What types of objects can be thrown?Ch. 11 - Prob. 8SACh. 11 - Prob. 9SACh. 11 - Prob. 10SACh. 11 - What is the difference between a text file and a...Ch. 11 - What is the difference between a sequential access...Ch. 11 - What happens when you serialize an object? What...Ch. 11 - TestScores Class Write a class named TestScores....Ch. 11 - Prob. 2PCCh. 11 - Prob. 3PCCh. 11 - Prob. 4PCCh. 11 - Prob. 5PCCh. 11 - FileArray Class Design a class that has a static...Ch. 11 - File Encryption Filter File encryption is the...Ch. 11 - File Decryption Filter Write a program that...Ch. 11 - TestScores Modification for Serialization Modify...Ch. 11 - Prob. 10PC
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
In Section 3.6.8, we saw that a common way to implement switch statements is to create a set of code blocks and...
Computer Systems: A Programmer's Perspective (3rd Edition)
The following is the first line of the copy constructor definition for the class StringVar. The identifier Stri...
Problem Solving with C++ (9th Edition)
(The Point class) Design a class named Point that meets the following requirements: Two data fields x and y for...
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Fill in the blanks in each of the following statements: A(n)and a(n)begin and end the body of every method.
Java How To Program (Early Objects)
Suppose the memory cells at addresses 0x00 through 0x05 in the Vole contain the following bit patterns: Address...
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
Temperature Class Write a Temperature class that will hold a temperature in Fahrenheit, and provide methods to ...
Starting Out with Java: From Control Structures through Data Structures (3rd 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.Similar questions
- Challenge 2: InvalidNumbers.java Write a program InvalidNumbers that asks the user to enter a positive integer. The program will warn the user if a valid integer is not entered using the InputMismatchException and ask to enter again. The program should also throw an exception if the user enters negative numbers. Write the program and test it using negative numbers, doubles, and very large numbers.arrow_forwardJava Programming: Below is the lexer, shank and token files along with the shank.txt file. The shank file is the main method file. The lexer must break up the input text stream into lexemes and return a token object for each one in the shank.txt file. Make sure to fix the errors in the lexer.java file and show the complete code for lexer.java.There must be no error in the code at all. Run the whole code and show the output which the shank.txt must be printed out in the terminal. Attached is the rubric. Lexer.java package mypack; import java.util.HashMap;import java.util.List;import mypack.Token.TokenType; public class Lexer { private static final int INTEGER_STATE = 1;private static final int DECIMAL_STATE = 2;private static final int IDENTIFIER_STATE = 3;private static final int SYMBOL_STATE = 4;private static final int ERROR_STATE = 5;private static final int STRING_STATE = 6;private static final int CHAR_STATE = 7;private static final int COMMENT_STATE = 8; private static final…arrow_forwardFor this exercise, you will create 2 classes: InputOutput class and AddNumbers class. ⦁ InputOutput Class: write a program that carries out the following tasks:⦁ Create an object of type PrintWriter and that writes into a file with the name greeting.txt.⦁ Print the message “Hello, world!” on the file.⦁ Close the file.⦁ Open the same file again.⦁ Read the message into a string variable (hint: use nextLine() method to read the text).⦁ Print the message on the screen. ⦁ AddNumbers Class: write a program that asks the user to input four floating-point numbers. Add all correctly specified values and print the sum when the user is done entering data. Use exception handling to detect improper inputs. For example, the user might enter letters instead of numbers. In this case, use the exception handling mechanism to print a proper message. (hint: use InputMismatchException) Don’t forget to import java.util.*.arrow_forward
- Write a class name FileDisplay with the following methods: Constructor: takes the name of a file as an argument displayHead: displays only the first five lines of the file’s contents. If the file contains less than 5 lines, it should display the file’s entire contents. displayContents: displays the entire contents of the file, the name of which was passed to the constructor. writeNew: displays the contents of a file, the name of which was passed to the constructor. Each line should be preceded with a line number followed by a colon. The line numbering should start at 1. As each line is displayed it should also be written to a new file, the name of which is passed in as a parameter. I have provided a test file called “testfile.txt”. I have also provided a driver for the application called “filedisplaytest.java”. This file is complete and should not be altered. Test File: This is line one.This is line two.This is line three.This is line four.This is line five.This is line…arrow_forwardProgramming Problem 3 – CycleFileInput Revisit the Cycle class in Module 3. Modify your application such that the properties will be read from a text file called “Cycle.txt”. Directions Examine your application for the class called Cycle. Add an appropriate throws statement in the main method. Create a reference to a File class with the appropriate name of a text file (Cycle.txt). Note: Cycle.txt was created in the previous assignment, CycleFileOutput. In your code, check that the text file does exist. Input the values from the file to memory. Close the file.arrow_forwardRules: Corner cases. Throw the specified exception for the following corner cases: Throw an IllegalArgumentException if the client calls either addFirst() or addLast() with a null argument. Throw a java.util.NoSuchElementException if the client calls either removeFirst() or removeLast when the deque is empty. Throw a java.util.NoSuchElementException if the client calls the next() method in the iterator when there are no more items to return. Unit testing. Your main() method must call directly every public constructor and method to help verify that they work as prescribed (e.g., by printing results to standard output). Performance requirements. Your implementation must achieve the following worst-case performance requirements: A deque containing n items must use at most 48n + 192 bytes of memory, not including the memory for the items themselves. Each deque operation (including construction) must take constant time. Each iterator operation (including construction) must take…arrow_forward
- Write an application TestStudent that prompts for and reads a student name. It then creates a Student object. It then prompts for and reads the number of quizzes n that the student has taken. It then prompts for and reads the scores of the student in n quizzes and adds each to the totalScore of the student using addQuiz() method. Finally, the application prints the student object using the toString() method, and it also prints his quiz average. The main method must handle java.util.InputMismatchException, java.lang.IllegalArgumentException and java.lang.Unsupported OperationException.arrow_forwardThe file Names.txt is located in the folder input_files within your project. The content of that file is shown in the following figure Java: import java.io.FileInputStream;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Question2 {public static void main(String[] args) throws FileNotFoundException {/*** Part a* Finish creating an ArrayList called NameList that stores the names in the file Names.txt.*/ArrayList<String> NameList;/*** Part b* Replace null on the right-hand-side of the declaration of the FileInputStream object named inputStream* so that it is initialized correctly to the Names.txt file located in the folder specified in the question description*/FileInputStream inputStream = null;Scanner scnr = new Scanner(inputStream); //Do not modify this line of code/*** Part c* Using a loop and the Scanner object provided, read the names from Names.txt* and store them in NameList created in Part a.*//*** Part d* Reorder the…arrow_forwardWrite an application that determines whether the first two files are located in the same folder as the third one. If the files are in the same folder display All files are in the same folder, otherwise display Files are not in the same folder. Test the program when the files are in the same folder and when they are not. import java.nio.file.*; import java.io.IOException; public class CompareFolders { public static void main(String[] args) { Path file1 = Paths.get("/root/sandbox/TestData1.txt"); Path file2 = Paths.get("/root/sandbox/TestData2.txt"); Path file3 = Paths.get("/root/sandbox/test/TestData3.txt"); // Write your code here } }arrow_forward
- Place the CashRegister calss in a file called cashregister.py and write following test code in the cell below. a Complete following test code: Import all methods of CashRegister class Write a test function to test the getTotal() and getCount() methods as it follows. add 5 items. undo the last item. add 3 more items. undo the last item after your test has done all of the above, print an statement for expected total price and total count. call the getTotal() and getCount(). (the result must be equal to the previous part) class CashRegister: def __init__(self): self._itemCount=0 self._totalPrice=0.0 self._taxPercent=13 def addItem(self,price): self._itemCount=self._itemCount+1 self._totalPrice=self._totalPrice+price def getTotal(self): return self._totalPrice def getCount(self): return self._itemCount def clear(self): self._itemCount=0 self._totalPrice=0 def updateTaxRate(self,newTaxPercent): if…arrow_forwardArgumentException is an existing class that derives from Exception; you use it when one or more of a method’s arguments do not fall within an expected range. Write the application SwimmingWaterTemperature containing a variable that can hold a temperature expressed in degrees Fahrenheit. Within the class, create a method that accepts a parameter for a water temperature and returns true or false, indicating whether the water temperature is between 70 and 85 degrees and thus comfortable for swimming. If the temperature is not between 32 and 212 (the freezing and boiling points of water), it is invalid, and the method should throw an ArgumentException. In the Main() method, continuously prompt the user for data temperature, pass it to the method, and then display the following messages indicating whether the temperature is comfortable, not comfortable, or invalid: X degrees is comfortable for swimming. X degrees is not comfortable for swimming. Value does not fall within the expected…arrow_forwardArgumentException is an existing class that derives from Exception; you use it when one or more of a method’s arguments do not fall within an expected range. Write the application SwimmingWaterTemperature containing a variable that can hold a temperature expressed in degrees Fahrenheit. Within the class, create a method that accepts a parameter for a water temperature and returns true or false, indicating whether the water temperature is between 70 and 85 degrees and thus comfortable for swimming. If the temperature is not between 32 and 212 (the freezing and boiling points of water), it is invalid, and the method should throw an ArgumentException. In the Main() method, continuously prompt the user for data temperature, pass it to the method, and then display the following messages indicating whether the temperature is comfortable, not comfortable, or invalid: X degrees is comfortable for swimming. X degrees is not comfortable for swimming. Value does not fall within the expected…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
C - File I/O; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=cEfuwpbGi1k;License: Standard YouTube License, CC-BY
file handling functions in c | fprintf, fscanf, fread, fwrite |; Author: Education 4u;https://www.youtube.com/watch?v=aqeXS1bJihA;License: Standard Youtube License