Problem Charge Account Validation Create an application that reads the contents of the file into an array or a List . The application should then let the user enter a charge account number. The program should determine whether the number is valid by searching for it in the array or List that contains the valid charge account numbers. If the number is in the array or List , the program should display a message indicating the number is valid. If the number is not in the array or List , the program should display a message indicating the number is invalid. For Visual Studio .Net 4.6.1 current solution on bartleby does not work as it does not actually use a list and does not properly retrieve the file file is a text document with 18 7 digit numbers named ChargeAccounts.txt

The logic will allow the user to: Load a single dimensional array of size 50 with a random number The random number will range from 1 to 1,000 (you may have duplicate values) Find the highest value and the index location that it was in Find the smallest value and the index location that it was in Display the array’s contents. Display the highest value and its index location Display the lowest value and its index location Allow the user to execute this application multiple times (some sort of loop?) You will need one for loop to load the array as well as one or two for loops to search that array. The rand also has a "nasty" tendency to create the same results repeatedly in an exe. To avoid that, we have to "shuffle the deck" every time. This ensures that all numbers are an equal probability of appearing and not the same set of values (would create a boring game). // Add this to "shuffle the deck" every time to ensure that // different values could occur else the exe produces the...

In Python, grades_dict = {'Wally': [87,96,70], 'Eva': [100,87,90], 'Sam': [94,77,90], 'Katie': [100,81,82], 'Bob': [83, 65, 85]} Ask user to enter the names of the rows, i.e., indices. You can use: len(grades) to get the number of rows of the DataFrame. In addition, using the sort_index() method, ask user whether they wish to sort by rows or by columns and whether to sort in ascending or descending order (do not use any if-else statements)

C# According to the following statement, __.Random rn = new Random(); Question 1 options: It declares a variable named rn that can be used to reference an object of the Random type. The new operator creates an object in memory and returns a reference to that object. The = operator assigns the reference that was returned from the new operator to the rn object. All of the above.

Fleet class: Instance Variables An array that stores Aircraft that represents Delta Airlines entire fleet A variable that represents the count for the number of aircraft in the fleet Methods: o Constructor-One constructor that instantiates the array and sets the count to aero readFile()-This method accepts a string that represents the name of the file to be read. It will then read the file. Once the data is read, it should create an aircraft and then pass the vehicle to the addAircraft method. It should not allow any duplication of records. Be sure to handle all exceptions. o writeFile()-This method accepts a string that represents the name of the file to be written to and then writes the contents of the array to a file. This method should call a sort method to sort the amay before writing to it. sortArray()-This method returns a sorted array. The array is sorted by registration number.u addAircraft- This method accepts an aircraft and adds it to the fleet(the array only if it is not...

Create a Console application that does the following:This program must use a single array to store integers and find the minimum value.1. Create an array that can hold up to 100 integers.2. Prompt the user for the number of integers to be stored in the array.3. Prompt the user for the integers to be stored in the array.4. Use a loop to iterate through the array and determine the minimum value.

Pointer variable stores the address where another object resides and system will automatically do garbage collection. Group of answer choices True False

The subscript identifies the of a particular element in the array. O range value O location name

Open the project or solution named mpg in this folder: ex_starts\ch07_ex1_mpg Review the code and run the program to refresh your memory on how it works. Notice that, unlike the program in this chapter, this program lets the user perform more than one calculation, it stores the values the user enters in a text file, and it displays the total miles, total gallons, and average miles per gallon when the program starts and after each entry. Add a function that calculates the miles per gallon Define a function named calculate_mpg() before the main() function that calculates the miles per gallon. This function should accept two double values for the miles and gallons, round the result to two decimal places, and return the result as a double type. Modify the code in the main() function so it uses the calculate_mpg() function. Note that the miles per gallon is calculated in three different places. Move the definition for the calculate_mpg() function after the main() function. When you run...

5. Charge Account Validation If you have downloaded the source code from the Computer Science Portal you will find a file named charge_accounts.txt in the Chapter 07 folder. This file has a list of a com- pany's valid charge account numbers. Each account number is a seven-digit number, such as 5658845. Programming Exercises 403 program Write a program that reads the contents of the file into a list. The program should then ask the user to enter a charge account number. The program should determine whether the number is valid by searching for it in the list. If the number is in the list, the should display a message indicating the number is valid. If the number is not in the list, the program should display a message indicating the number is invalid. (You can access the

What form of object should be created if you want to read data from a text file?

Weather Statistics": Problem Statement: Write a program that uses a structure to store the following weather data for a particular month: Total Rainfall High Temperature Low Temperature Average Temperature The program should have an array of 12 structures to hold weather data for an entire year. When the program runs, it should ask the user to enter data for each month. (The average temperature should be calculated.) Once the data are entered for all the months, the program should calculate and display the average monthly rainfall, the total rainfall for the year, the highest and lowest temperatures for the year (and the months they occurred in), and the average of all the monthly average temperatures. Input Validation: Only accept temperatures within the range between -100 and +140 degrees Fahrenheit.

The intNums array is declared as follows: Dim intNums() As Integer = {10, 5, 7, 2}. Which of the following blocks of code correctly calculates the average value stored in the array? The intTotal, intSub, and dblAvg variables contain the number 0 before the loop is processed. a. Do While intSub < 4 intNums(intSub) = intTotal + intTotal intSub += 1 Loop dblAvg = intTotal / intSub b. Do While intSub < 4 intTotal += intNums(intSub) intSub = intSub + 1 Loop dblAvg = intTotal / intSub c. Do While intSub < 4 intTotal += intNums(intSub) intSub += 1 Loop dblAvg = intTotal / intSub – 1 d. Do While intSub < 4 intTotal = intTotal + intNums(intSub) intSub = intSub + 1 Loop dblAvg = intTotal / (intSub – 1)