Questions
Write a program that loops, prompting the user for their full name, their exam result (an...

Write a program that loops, prompting the user for their full name, their exam result (an integer between 1 and 100), and then writes that data out to file called ‘customers.txt’. The program should check inputs for validity according to the following rules:

  • First and last names must use only alphabetical characters. No spaces, hyphens or special characters. Names must be less than 20 characters long.
  • Exam result (an integer between 1 and 100 inclusive)

The file should record each customers information on a single line and the output file should have the following appearance.

Nurke Fred 58

Cranium Richard 97

Write a second program that opens the ‘customers.txt’ file for reading and then reads each record, splitting it into its component fields and checking each field for validity.

The rules for validity are as in your first program, with the addition of a rule that specifies that each record must contain exactly 3 fields.

Your program should print out each valid record it reads.

The program should be able to raise an exception on invalid input, print out an error message with the line and what the error was, and continue running properly on the next line(s).

In: Computer Science

Python It's time to put everything together!  This week you will write a program that mimics an...

Python

It's time to put everything together!  This week you will write a program that mimics an online shopping cart . You will use all the programming techniques we have learned thus far this semester, including if statements, loops, lists and functions. I leave the bulk of design up to you (hint - think A LOT about it before you start programming!!) but it should include all of the following:

The basics - Add items to a cart until the user says "done" and then print out a list of items in the cart and a total price.

- Ensure the user types in numbers for quantities
- "Hardcode" the price of items into a list and pick from it randomly for each item
- Get the user's name and shipping address
- Separate functions that compute tax (bonus - different based on shipping state?) and shipping costs (based on number of items?), and returns their values to the main program
- Bonus: Set up a list of lists with all the items/prices in your store and only let users pick from that list

In: Computer Science

To play the PowerBall lottery, you buy a ticket that has five unique numbers in the...

To play the PowerBall lottery, you buy a ticket that has five unique numbers in the range of 1–69, and a “PowerBall” number in the range of 1–26. (You can pick the numbers yourself, or you can let the ticket machine randomly pick them for you.) Then, on a specified date, a winning set of numbers is randomly selected by a machine. If your first five numbers match the first five winning numbers in any order, and your PowerBall number matches the winning Pow-erBall number, then you win the jackpot, which is a very large amount of money. If your numbers match only some of the winning numbers, you win a lesser amount, depending on how many of the winning numbers you have matched. In the student sample programs for this book, you will find a file named pbnumbers.txt, containing the winning PowerBall numbers that were selected between February 3, 2010 and May 11, 2016 (the file contains 654 sets of winning numbers). Figure 8-6 shows an example of the first few lines of the file’s contents. Each line in the file contains the set of six numbers that were selected on a given date. The numbers are separated by a space, and the last number in each line is the PowerBall number for that day. For example, the first line in the file shows the numbers for February 3, 2010, which were 17, 22, 36, 37, 52, and the PowerBall number 24. Write a program that works with this file to display the 10 most common numbers, ordered by frequency.

In: Computer Science

This is a question about coding in python. I think that the question is asking me...

This is a question about coding in python. I think that the question is asking me to code the following: Implement the scalar product of 2 vectors in 2-space, using two tuple parameters (the function scalarProduct2). Write a docstring; then write some test function calls (can I pick any data for this? - the question gave these examples data examples: (1., 1.) dot (2,3) = (1.,1.) dot (2,0) = (1., 1.) dot (0,2) = (1., 1.,) dot (4,5) = ); then implement the body of the function ( I am not sure what this means - run the function?)

In: Computer Science

Perform a Web search for “Announcing the Advanced Encryption Standard (AES).” Read this document, which is...

Perform a Web search for “Announcing the Advanced Encryption Standard (AES).” Read this document, which is a FIPS 197 standard. Write a short overview of the development and implementation of this cryptosystem. Your response must include the type of Algorithm used, the size of data blocks that can be processed, and the lengths of the cipher keys.

In: Computer Science

Complete the following Lab and submit screenshots showing each step. IRC is an older application layer...

Complete the following Lab and submit screenshots showing each step.
IRC is an older application layer protocol which is the ancestor of many modern message applications. While it has greatly declined in popularity, there are still several million people using IRC.

IRC is a text only chat based protocol. There are many IRC clients you can use, and several of them are web based.

Connect to an IRC room of your choice, and post a screenshot and short description of the room and how you found it.

In: Computer Science

Problem 1: Given an array A[0 ... n-1], where each element of the array represents a...

Problem 1:

Given an array A[0 ... n-1], where each element of the array represents a vote in the election. Assume that each vote is given as integers representing the ID of the chosen candidate. Write the code determining who wins the election.

Problem 2:

How do we find the number which appeared maximum number of times in an array?

( Use Java and an original code )

In: Computer Science

I am not even sure what the question is for the problem below, but I have...

I am not even sure what the question is for the problem below, but I have highlighted what I think the question is further down:

Let v = (v1, v2) and w = (w1, w2) be vectors in 2 space.

The Scalar Product of v and whose notation is v (dot) w, is defined as follows: V (dot) w : = v1*w1 + v2 *w2

The scalar product (aka inner product, or dot product) Scalar product of 2 vectors in 2-space using 4 float parameters (the function scalarProduct 1)

ACTUAL QUESTION (I think ) - Code the following in Python:

Write a docstring; then write some test function calls; then implement the body of the function

Some test data: (1., 1.) · (2,3) = 5 (or, as a function call: scalarProduct1)

(1., 1., 2., 3.) (1.,1.) · (2,0) = 2

(1., 1.) · (0,2) =2

(1., 1.,) · (4,5) =23

In: Computer Science

For each of the following, describe how to implement the operation of the variable "int x"...

For each of the following, describe how to implement the operation of the variable "int x" using only bitwise, addition, and subtraction operators (<<, >>, +, -, &, |, ^, ~)

A) x * 2

B) x * 14

C) x * -44

D) x * 1023

Problem 2. Floating point encoding. Write out the 32 bit IEEE floating point binary representation for each of the following numbers:

A) 1.0

B) -2.0

C) -1000000.00

D) nan

E) -inf

F) 3.402823e38

In: Computer Science

You work for a bank that has a program with a dependency of the account class....

You work for a bank that has a program with a dependency of the account class. Unfortunately the hard drive that contained the source code for the account class went bad and no backup can be found. Obviously, this means you bank needs to address this issue. However, your task is to recreate the account class. The good news is that your company was able to locate a tester of the account class and one helper function to output the class. Using these two files, you should be able to re-engineer account.h and account.cpp to work as originally designed.

Implement the account class.

main.cpp:

#include <iostream>
#include "account.h"
#include "account_output.h"
using namespace std;
using namespace DS;

int main() {

    cout << "Account Tester" << std::endl;

    //Create an account with 3.0% interest rate
    account savings(0.03);
    //Deposit one dollar
    savings.deposit(1.00);
    //Account should have exactly $1 in it
    cout << savings << endl;

    //Move up a week
    savings.advanceDay(7);
    cout << savings << endl;

    //Deposit $450.55
    savings.deposit(450.55);
    cout << savings << endl;

    //Move up 23 days, should see our first compound
    //However, the average balance not 451.55, since the balance was $1 for 7 of the 30 days
    savings.advanceDay(23);
    cout << savings << endl;

    //Advance a bunch with balance unchanged, two compoudings happen
    savings.advanceDay(65);
    cout << savings << endl;

    //Deposit more
    savings.deposit(1000);
    cout << savings << endl;

    //Advance a bunch with balance unchanged, at least two more interest calculations
    savings.advanceDay(65);
    cout << savings << endl;

    //Will not mutate object, amount must be > 0
    savings.deposit(-1000);
    cout << savings << endl;

    //Will not mutate object, amount must be > 0
    savings.withdraw(-1000);
    cout << savings << endl;

    //Will not mutate object, amount must < balance
    savings.withdraw(-10000);
    cout << savings << endl;

    //lower balance by 50
    savings.withdraw(50);
    cout << savings << endl;

    savings.advanceDay(30);
    cout << savings << endl;

    return 0;
}

account_output.h: Overload of the << operator to display the balance and week number.

#ifndef PROJECT_SAVINGS_ACCOUNT_OUTPUT_H
#define PROJECT_SAVINGS_ACCOUNT_OUTPUT_H

#include <ostream>
#include <iomanip>

namespace DS {
    //Precondition: None
    //Postcondition: Output to stream, in the format of
    // day: DAYNUM, balance: $x.xx
    std::ostream &operator<<(std::ostream &, const account &);

    std::ostream &operator<<(std::ostream &os, const account &account) {
        os << "day: "
            << account.getDayNumber()
            << ", balance: $"
            << std::fixed
            << std::setprecision(2)
            << account.getBalance();
        return os;
    }
}
#endif

Due 09/17/2019 11:59pm

In: Computer Science

IN JAVA create a program that has 8 players and ranks them randomly and contains 3...

IN JAVA create a program that has 8 players and ranks them randomly and contains 3 rounds. For each round the highest ranked player plays the lowest ranked one i.e., in quarter-final round, player ranked 1 plays player ranked 8, player ranked 2 plays player ranked 7 and so on. Report the winner of each match, simulating using random values of your choice USING JAVA COLLECTIONS IS NOT ALLOWED

In: Computer Science

WRITTEN IN C PLEASE. Write a switch statement that tests the value of the char variable...

WRITTEN IN C PLEASE.

Write a switch statement that tests the value of the char variable response and performs the following actions: if response is y, the message Your request is being processed is printed if response is n, the message Thank you anyway for your consideration is printed if response is h, the message Sorry, no help is currently available is printed for any other value of response, the message Invalid entry; please try again is printed

In: Computer Science

Consider a discrete fully observable world with S states. How many distinct simple reflex agents, each...

Consider a discrete fully observable world with S states. How many distinct simple reflex agents, each with A actions, can be written for such a world? Two agents are distinct if there exists some world state where they take different actions.

In: Computer Science

Assignment #2*: Build A Report Purpose: Exercise, use, Inputs, Outputs, and perform conditional evaluation Requirements: (Multiple...

Assignment #2*: Build A Report Purpose: Exercise, use, Inputs, Outputs, and perform conditional evaluation Requirements: (Multiple classes/Multiple types of input) • Input: Report Owner’s full name and 7 numbers (at least one double and one integer) o The owner’s name cannot contain any special characters, blank spaces, or numbers • You must use an if statement and at least one switch statement in your program • You are not allowed to have static variables or methods in any class except for the class with the main method. • You have to have at least 2 classes • You are not allowed to use ArrayLists or Vectors, only primitive arrays or string arrays if you want. Application Operation: 1.) Input, via a question in the console, the report owner’s first name as a string and build the last name via input, one character at a time. a. Check, conditionally, to make sure the first name and last name don’t contain any numeric characters, numbers between 0 – 9. If it does you must remove it. The names can not contain any white space either or special characters. 2.) Input report name via a request from the console. 3.) Input, and display, the total of the numeric input after each input is entered. Average the numeric input, indicate lowest numeric input value and the highest numeric input value for the previous numeric inputs, before the next numeric input is asked for. (Example given in class) 4.) Have a program exit input, condition, value available (i.e. if you type -1 the program exits) 5.) Create and display a final report that should have the report name, owner and the following: Numeric output should appear as a table with the following columns: (columns should be underlined) a. Input Number b. Highest Number c. Lowest Number d. Total (by the row) e. Average Number 6.) At the end of the report you must have a grand total for the numeric entries

In: Computer Science

Develop a C# console application that will implement one method that will return an integer value,...

Develop a C# console application that will implement one method that will return an integer value, one void method that will calculate an average, and one void overload for the calculate method that will compute a total. Please read the requirements below carefully. In Main: You will need four variables: an integer value to hold a random value, a double value to hold an average, a double value to hold a total, and a double value to hold an input entry. Using a for loop that will call a get random method 20 times. In the loop, you will pass a seed value to the get random method to use with the random generator and it will return a random value to be added to (accumulate) to the local integer variable in Main. In the getRandommethod, you will generate a random value between 1 and 100 (see p241, section 7.9) and return that random value to Main. The random value will be generated to get random using a Random class object. Once the loop has completed the 20 method calls you will call a calculate method which returns no value and to which you will pass the total of the random values, the average variable by reference, and the literal value of 20. In the calculate method you will compute an average by dividing the total of the random number passed in by the literal value 20 that was passed into the calculate method. After the calculation method executes you will display the average to the console. Following the writeline statement noted above, you will implement a second for loop that will process 5 iterations. Within this for loop you will prompt the user to enter a double value from the console and then assign that input to the double variable declared to hold the input entry. Also within the loop you will call an overload of the void calculate method and will pass two arguments: the entry taken from the console and the variable to hold the total by reference. The overload of the void calculate method will receive the double entry value and the byref double variable that will receive the total. In the overloaded calculate method you will add the value passed in to the total variable. After the overloaded calculate method executes you will display the total to the console. and I want the screenshot of the output too.

In: Computer Science