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3 years ago

I NEED HELP QUICK

Computers and Technology

1 answer:

Serjik [45]3 years ago

8 0

Answer: keeps confidential documents secure,

displays a GUI, allocates the computer's resources, and retrieves files

Explanation:

The operating system can be defined as the software installed in the system that provides the information and services to the users by controlling the hardware, software resources, and regulates the computer programs. It runs the applications and programs in the system, displays the graphic user interface for the services, stores, manipulates, and retrieves files. It prevents the unauthorized access to the data and programs by using passwords thus provides the security to the system and documents.

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Murrr4er [49]

Answer:

total = 0

items = int(input("Enter the number of items ordered: "))

for i in range(items):

price = float(input("Enter the price of item " + str(i+1) + ": "))

total += price

if total < 200:

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Explanation:

*The code is in Python.

Ask the user to enter the number of items ordered

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After the loop, check the total. If it is smaller than 200, add 10 for each item to the total

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4 years ago

Consider the following class declaration. This is the continuation of the lab 8, exercise 1. Suppose that management now wants t

anzhelika [568]

Answer:

Explanation:

The code is implemented in C++ and comments to aid understanding are provided below.

Will be attaching code for these 3 files:

CustomerDemo.cpp

Customer.cpp

Customer.h

Source code for CustomerDemo.cpp:

#include <iostream>

#include "Customer.h"

using namespace std;

int main()

{

string response = "y";

double val;

Customer a("John Doe", "101 Main St.", "Rockford", "IL", "61801", 100.00);

Customer b("J", "101 Main St.", "Rockford", "IL", "61801", 100.00);

Customer c("Doe", "101 Main St.", "Rockford", "IL", "61801", 100.00);

Customer z("D", "101 Main St.", "Rockford", "IL", "61801", 100.00);

while ( response == "y" )

{

cout << "Purchase value (in $): ";

cin >> val;

if(!c.add_purchase(val)) break;;

cout << "Do you want to purchase another item (y/n)? ";

cin >> response;

}

cout << "Please pay the balance of $" << c.get_unpaid_balance() << endl;

/* cout << "would you like to pay off part of the unpaid balance?" <<endl;

if (response== "y")

{

cout< "Enter the payment amoun (in $)";

(c.get_

cout << "Do you want to purchase another item (y/n)? ";

cin >> response;

}*/

system("pause");

return 0;

}

→ Source code for Customer.cpp:

#include "Customer.h"

Customer::Customer()

{

name = "";

address = "";

city = "";

state = "";

zipcode = "";

credit_limit = 0;

year_to_date_purchases = 0;

unpaid_balance = 0;

}

Customer::Customer(string n, string a, string c, string s, string z, double cl)

{

name = n;

address = a;

city = c;

state = s;

zipcode = z;

credit_limit = cl;

year_to_date_purchases = 0;

unpaid_balance = 0;

}

void Customer::increase_limit(double amount)

{

credit_limit += amount;

}

string Customer::get_name() const

{

return name;

}

string Customer::get_address() const

{

return address;

}

string Customer::get_city() const

{

return city;

}

string Customer::get_state() const

{

return state;

}

string Customer::get_zipcode() const

{

return zipcode;

}

double Customer::get_credit_limit() const

{

return credit_limit;

}

double Customer::get_unpaid_balance() const

{

return unpaid_balance;

}

bool Customer::add_purchase(double val)

{

if ( (val + unpaid_balance) > credit_limit )

{

cout << "Not enough credit limit. Purchase cannot be completed.\n";

return false;

}

year_to_date_purchases += val;

unpaid_balance += val;

cout << "Purchase successful.\n"; //trace message

return true;

}

void Customer::pay_balance(double payment)

{

unpaid_balance -= payment;

}

→ Source code for Customer.h:

#ifndef CUSTOMER_H

#define CUSTOMER_H

#include <string>

#include <vector>

#include <iostream>

using namespace std;

class Customer

{

public:

//constructors

Customer();

Customer(string name, string address, string city,

string state, string zipcode, double);

//accessors

string get_name() const;

string get_address() const;

string get_city() const;

string get_state() const;

string get_zipcode() const;

double get_credit_limit() const;

double get_unpaid_balance() const;

//mutators

void increase_limit(double amount);

bool add_purchase(double val);

void pay_balance(double payment);

private:

string name;

string address;

string city;

string state;

string zipcode;

double credit_limit;

double year_to_date_purchases;

double unpaid_balance;

};

#endif

cheers i hope this helped !!

8 0

3 years ago