What happens when the following code segment executes if test.txt does not exist? infile = open("test.txt", "r") Select one: The file test.txt is created as a new empty file The program raises an exception All attempts to read from the file return an empty string All attempts to read from the file return random values

This is the question - Write an application that displays a series of at least eight student ID numbers (that you have stored in an array) and asks the user to enter a test letter grade for the student. Create an Exception class named GradeException that contains a static public array of valid grade letters (A, B, C, D, F, and I) that you can use to determine whether a grade entered from the application is valid. In your application, throw a GradeException if the user does not enter a valid letter grade. Catch the GradeException, and then display the message Invalid grade. In addition, store an I (for Incomplete) for any student for whom an exception is caught. At the end of the application, display all the student IDs and grades. Code I was given, I will attach a screenshot of the errors-  public class GradeException extends Exception {     public GradeException(String string) {     } }   import java.util.*; public class TestGrade {    public static void main(String args[]) throws…

it is a java question  Write a custom exception class named StringTooLongException containing a no argument constructor and a one argument constructor.

The while loop reads values from input until an integer is read. Complete the exception handler in the while loop to catch an InputMismatchException exception and: Output "Removed unacceptable input for number of cents". End with a newline. Discard the invalid input. Ex: If the input is 20 60, then the output is: 20 cents = 4 nickels Processed one valid input value Ex: If the input is Aya Tia 20 60, then the output is: New JAVA code can only be added after code given:     Removed unacceptable input for number of cents Removed unacceptable input for number of cents 20 cents = 4 nickels Processed one valid input value Note: Each value read from input is on one line.       /*******************************************************************************************************                                New Java Code here: test input:   Aya Tia 20 60 *******************************************************************************************************/

There is no limit to the number of arguments that may be put into a catch block.

4. Read from File Create a program that reads the values in the temperature data file created in the previous program. The program will display each temperature value in the file and calculate and display the average temperature. Be sure your program handles exceptions.

s and throws an exception if the second input on a line is a string rather than an int. At FIXME in the code, add a try/catch statement to catch ios_base::failure, and output 0 for the age. Ex: If the input is: Lee 18 Lua 21 Mary Beth 19 Stu 33 -1 then the output is: Lee 19 Lua 22 Mary 0 Stu 34 419894.2696446.qx3zqy7 #include <string>#include <iostream> using namespace std; int main() {   string inputName;   int age;   // Set exception mask for cin stream   cin.exceptions(ios::failbit);    cin >> inputName;   while(inputName != "-1") {      // FIXME: The following line will throw an ios_base::failure.      //        Insert a try/catch statement to catch the exception.      //        Clear cin's failbit to put cin in a useable state.      cin >> age;      cout << inputName << " " << (age + 1) << endl;       cin >> inputName;   }      return 0;}

There is no limit to the number of arguments that may be put into a catch block.

PARTICIPATION ACTIVITY Arrange the following lines to make a program that determines when the number of people in a restaurant equals or exceeds 10 occupants. The program continually gets the number of people entering or leaving the restaurant. Ex: 2 means two people entered, and -3 means three people left. After each input, the program outputs the number of people in the restaurant. Once the number of people in the restaurant equals or exceeds 10, the program exits. If an Input MismatchException exception occurs, the program should get and discard a single string from input. Ex: The input "2 abc 8" should result in 10 occupants. Not all lines are used in the solution. How to use this tool ✓ Unused totalNumPeople += scnr.nextInt (); while (totalNumPeople < maxNumPeople) { } } 11.1.5: Handling input exceptions: restaurant max occupancy tracker. catch { try { catch (InputMismatchException e) { scnr .nextLine(); scnr.next(); System.out.println("Error"); } System.out.println("Occupancy:…

java Program Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage  I do not want a goodbye system out in the program and it has to pass all the test cases. Test Case 1     Please enter the file name or type QUIT to exit:\ninput1.txtENTERTotal: 11.800\nAverage: 2.950\n   Test Case 2     Please enter the file name or type QUIT to exit:\ninput2.txtENTERTotal: 17.300\nAverage: 3.460\n   Test Case 3     Please enter the file name or type QUIT to exit:\ninput3.txtENTERTotal: 1.124\nAverage: 1.124\n   Test Case 4     Please enter the file name or type QUIT to exit:\ninput4.txtENTERFile input4.txt is empty.\n   Test Case 5     Please enter the file name or type QUIT…