QUESTION 4 When defining our own exception class, it is necessary to provide: O Only a constructor with String argument O Only a default constructor O Either a default constructor or a constructor with String argument O Both a default constructor and a constructor with String argument
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- Exception Project JAVA Create a Java program that searches for a student’s ID or name in a text file, complete the findID() and findName() functions. Then, insert a try/catch statement in main() to catch any exceptions thrown by findID() or findName(), and output the exception message. Each line in the text file contains a name and ID separated by a space. Function findID() has two parameters: a student's name (string) and the text file's contents (infile, input file variable). The function findID() returns the ID associated with the student's name if the name is in the file, otherwise the function throws a runtime error with the message "Student ID not found for studentName", where studentName is the name of the student. Function findName() has two parameters: a student's ID (string) and the text file's contents (infile). The function findName() returns the name associated with the student's ID if the ID is in the file, otherwise the function throws a runtime error with the message…in C# i need to Write the program BookExceptionDemo for the Peterman Publishing Company. Create a BookException class that is instantiated when a Book’s price exceeds 10 cents per page and whose constructor requires three arguments for title, price, and number of pages. Create an error message that is passed to the Exception class constructor for the Message property when a Book does not meet the price-to-pages ratio. For example, an error message: For Goodnight Moon, ratio is invalid. ...Price is $12.99 for 25 pages. Next, create a Book class that contains fields for title, author, price, and number of pages. Include properties for each field. Throw a BookException if a client program tries to construct a Book object for which the price is more than 10 cents per page. Finally, using the Book class, create an array of five Books. Prompt the user for values for each Book. To handle any exceptions that are thrown because of improper or invalid data entered by the user, set the Book’s…in c++ Write a function named createOneStudent that will read in from the user the student info: id, name and gpa. It will use try-catch to handle the exception if the user provides a negative id or gpa that is out of bound (< 0.0 or > 4.0) by asking the user to re-enter them. It must provide the correct reason for the error and the actual error value. Then it will allow the user to try up to 3 times. This function will return the pointer of a newly created Student object or nullptr if the info is still incorrect. Note that this function can and will use cin and cout to read in values from the user. Here is an example of a run up to 3 times: Enter ID: -1 Enter GPA: 4.0 Enter name: John Smith Exception: negative id: -1 Enter ID: 1234 Enter GPA: 5.0 Enter name: John Smith Exception: out of bound gpa: 5.00 Enter ID: 1234 Enter GPA: 4.0 Enter name: John Smith ID(1234) NAME(John Smith) GPA(4.00) Here is an example of a run of 3 times and still not able to create it: Enter ID: 1234…
- -Modify your parameter constructors to call your set methods. This will cause validation of the parameter.-Create an exception class named TractorException.-Modify your setters to throw TractorException if invalid values are passed in. You may also need to add a throws clause to your parameter constructors. This way we will not have any print methods in our Tractor object defining class-Modify your main method to try and catch exceptions. It should catch TractorExceptions and general Exceptions and display an appropriate message import java.util.*; class TestException { public static void main(String s[]) { Scanner scanner = new Scanner(System.in); boolean valid=false; // validation loop while (!valid) { try { System.out.println("Enter integer:"); int number = scanner.nextInt(); // may throw an exception System.out.println("You entered "+ number); valid=true;…QUESTION 5 A class may simultaneously "implement" a class and "extend" an interface. True False QUESTION 6 Checked exceptions are exceptions that result from hardware or logic errors that typically cannot be anticipated or handled appropriately . True Falsein c # i need to Write the program BookExceptionDemo for the Peterman Publishing Company. Create a BookException class that is instantiated when a Book’s price exceeds 10 cents per page and whose constructor requires three arguments for title, price, and number of pages. Create an error message that is passed to the Exception class constructor for the Message property when a Book does not meet the price-to-pages ratio. my errors are Test Case IncompleteComplete program walkthrough, test 1 InputBook1Author110.99200Book2Author219.99100Book3Author225.00600Book4Author35.0020Book5Author48.00120OutputEnter information for book #1:Title: Author: Price: Number of pages: Unhandled Exception:System.DivideByZeroException: Value was either too large or too small for a Decimal. at System.Decimal+DecCalc.VarDecDiv (System.Decimal& d1, System.Decimal& d2) [0x0003e] in <7b90a8780ac4414295b539b19eea7eea>:0 at System.Decimal.Divide (System.Decimal d1, System.Decimal d2) [0x00000] in…
- for c++ please need three files employee.h productionWorker.h cpp file NB: NEED ANSWER THE EXCEPTION PROJECT. here is chapter 15 required 15, Employee and ProductionWorker Classes Design a class named Employee. The class should keep the following information in • Employee name • Employee number • Hire date Write one or more constructors and the appropriate accessor and mutator functions for the class. VideoNote Solving the Employee and ProductionWorker Classes Problem Programming Challenges 963 Next, write a class named ProductionWorker that is derived from the Employee class. The ProductionWorker class should have member variables to hold the following information: • Shift (an integer) • Hourly pay rate (a double ) The workday is divided into two shifts: day and night. The shift variable will hold an integer value representing the shift that the employee works. The day shift is shift 1, and the night shift is shift 2. Write one or more constructors and the appropriate accessor and…Time Converter 1. Write a program that converts dates from a numerical month-day format to alphabetic month-day format. IE 1/31 or 01/31 would have an output of January 31. 1. User enters the month and day as a single string. It is then converted. (10%) 2. Create 2 exception classes (20%) 1. MonthException thrown for invalid months 2. DayException-thrown for invalid days for the given month 3. You can assume Feb is always 28 days 2. This should run in a for loop and end when a user is done entering dates (70%)Programming Problem 1 – CycleThrowTryCatch Revisit the Cycle class in Module 3. Modify your application such that the properties, numberOfWheels and weightare entered as double values interactively (at the keyboard). Exception handling will be used to determine whether a type mismatch occurs. Edit your application such that, in addition to [A], the values for numberOfWheels and weight, entered interactively, will throw a new exception “Values cannot be less than or equal to zero” only If the values are less than or equal to zero. Add or use the appropriate try and/or catch blocks. Directions Examine your application for the class called Cycle. Add Try and Catch blocks appropriately. Add the throw statement for the new exception. Display an appropriate message if an exception occurs. Display the properties of the object.
- 1. Create an exception class called SocSecException. The UML diagram for this class is below. SocSecException + SocSecException(error: String) : The constructor will call the superclass constructor. It will set the message associated with the exception to "Invalid social security number" concatenated with the error string. 2. Create a driver program called SocSecProcessor. This program will have a main method and a static method called isValid that will check if the social security number is valid. SocSecProcessor + main(args : String[]): void + is Valid(ssn: String): boolean Copyright © 2019 Pearson Education, Inc., Hoboken NJ Task #2 Writing Code to Handle an Exception 1. In the main method: a. The main method should read a name and social security number from the user as String objects. b. The main method should contain a try-catch statement. This statement tries to check if the social security number is valid by using the method isValid. If the social security number is valid, it…C++ 1) Create an admin class including:• Two private members: login and password• A constructor that initializes the object.2) Create a friend function that allows you to change the password.This function asks the user to enter the login and the old password.3) Use exception handling to display messages in case of a false login or passwordJava question Write a Thermostat class such that a user of the Thermostat class can create an objectof Thermostat and set it to the desired temperature within a pre-specified range. If theuser tries set the temperature outside this range it should throw a TemperatureTooHighor TemperatureTooLow exception. Use inheritance to create an exception superclassTemperatureOutofRange and subclasses TemperatureTooHigh andTemperatureTooLow.Sample Tester code:Thermostat t = new Thermostat(0, 100);t. setTemp(50); // Should be OK.t.setTemp(150); // Should throw TemperatureTooHigh exception.t.setTemp(-50); // Should throw TemperatureToolLow exception.Write a Tester class to demonstrate throwing and catching of exceptions. Show that thecatch specifying the superclass catches the subclass exceptions. The order of exceptionhandlers is important. If you try to catch a superclass exception type before a subclasstype, the compiler would generate errors. Also show the re-throwing of exceptions.