Solve the problem in C++ (HexFormatException) Implement the hex2Dec function in Programming Exercise 16.1 to throw a HexFormatException if the string is not a hex string . Define a custom exception class named HexFormatException. Write a test program that prompts the user to enter a hex number as a string and displays the number in decimal. If the function throws an exception, display "Not a hex number".

C++   You did this way back in Unit 1! But now all of your RomanNumber code is wrapped up in a class, so the "main" program is short and sweet. As before, write a program that accepts entries from the user.   If it's an integer, convert to Roman Number and display. If it's a Roman Number, convert to integer and display. If it's neither, thrown an exception and continue to process The action to take here will be to display an error message If the entry is 0 or O (The digit 0 (zero) or the letter O) exit and state how many conversions were done of each type (integer to Roman and Roman to integer) and how many exceptions were thrown.   As I said, the main program will be short and sweet. Provide your .cpp code and a screen shot of your program in action. Enter twelve conversions - four integer to Roman, four Roman to integer, and two of each in which the input is invalid so that I can see the exceptions. The thirteenth and final entry will be 0 or O.

Instructions: Exception handing Add exception handling to the game (try, catch, throw). You are expected to use the standard exception classes to try functions, throw objects, and catch those objects when problems occur.  At a minimum, you should have your code throw an invalid_argument object when data from the user is wrong.    File GamePurse.h: class GamePurse { // data int purseAmount; public: // public functions GamePurse(int); void Win(int); void Loose(int); int GetAmount(); };   File GamePurse.cpp: #include "GamePurse.h" // constructor initilaizes the purseAmount variable GamePurse::GamePurse(int amount){      purseAmount = amount; } // function definations // add a winning amount to the purseAmount void GamePurse:: Win(int amount){      purseAmount+= amount; } //  deduct an amount from the purseAmount. void  GamePurse:: Loose(int amount){      purseAmount-= amount; }   // return the value of purseAmount. int GamePurse::GetAmount(){      return purseAmount; }   File…

Design and implement a program that creates an exception classcalled StringTooLongException, designed to be thrown when astring is discovered that has too many characters in it. In the maindriver of the program, read strings from the user until the userenters "DONE". If a string that has too many characters (say 20) isentered, throw the exception. Allow the thrown exception toterminate the program

Modify the GreenvilleRevenue program created in Chapter 10, Case Study 1 so that it performs the following tasks: The program prompts the user for the number of contestants in this year’s competition; the number must be between 0 and 30. Use exception-handling techniques to ensure a valid value and display the error message:Number must be between 0 and 30 The program prompts the user for talent codes. Use exception-handling techniques to ensure a valid code and update the displayed message to the following message:x is not a valid talent code. Assigned as Invalid.where x was the invalid code entered into the console. After data entry is complete, the program prompts the user for codes so the user can view lists of appropriate contestants. Use exception-handling techniques for the code verification and display the following message: Enter a talent type or Z to quit >> x x is not a valid code and for valid codes: Enter a talent type or Z to quit >> S Contestants with talent…

Write a C++ program that converts 12-hour time (including AM/PM) to 24 hour time. You must define an exception class called InvalidTime wherein if the user enters an out of range time or gibberish characters, your program will throw and catch InvalidTime. Make your class support the following code: TwelveHourTime sevenAM( "7:00 AM" );cout << sevenAM.twentyFourTime( ) << endl;   // prints "07:00"TwelveHourTime eightPM( "8:30 PM" );cout << eightPM.twentyFourTime( ) << endl;  // prints "20:30"try{  TwelveHourTime bad( "asef32422" );  // the previous line should throw an InvalidTime exception} catch( InvalidTime ) {  cout << "caught error as expected" << endl;}

write a propram has a exception class named “Exception” that must inheritfrom the C++ runtime_errorclass.This class will capture the error case for a variable price when it is negative.For example, if the user tries to create with a variable price -1, it will generate an exception and this class should capture the reason and the error value, then print:Error: Invalid price. Ignored.

Write a program that calculates an adult's fat-burning heart rate, which is 70% of 220 minus the person's age. Complete fat_burning_heart_rate() to calculate the fat burning heart rate. The adult's age must be between the ages of 18 and 75 inclusive. If the age entered is not in this range, raise a ValueError exception in get_age() with the message "Invalid age." Handle the exception in_main_ and print the ValueError message along with "Could not calculate heart rate info." Ex: If the input is: 35 the output is: Fat burning heart rate for a 35 year-old: 129.5 bpm If the input is: 17 the output is: Invalid age. Could not calculate heart rate info.

Write a program that calculates an adult's fat-burning heart rate, which is 70% of 220 minus the person's age. Complete fat_burning_heart_rate() to calculate the fat burning heart rate. The adult's age must be between the ages of 18 and 75 inclusive. If the age entered is not in this range, raise a ValueError exception in get age() with the message "Invalid age." Handle the exception in _main_ and print the ValueError message along with "Could not calculate heart rate info." Ex: If the input is: 35 the output is: Fat burning heart rate for a 35 year-old: 129.5 bpm If the input is: 17 the output is: Invalid age. Could not calculate heart rate info.

Foundation in java Please provide a basic exception code. Do not use input, output.  Please provide code and explain. Thank you. Write the Java code for the following: Write the InvalidGradeException class that will be used below. Write the Java program that reads an integer grade from a user and checks that it is valid (between 0 and 100). If it is invalid an  InvalidGradeException will be thrown, stating what the invalid grade is.  This will be caught in the main( ) method which will write a message about the invalid grade.  If the grade is valid, it is written to the monitor..