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pav-90 [236]
3 years ago
8

The establishment called ABC Enterprise requires a Java program to keep a database of the inventory of the products that it sell

s. Each product is identified by its manufacturer, its name, the quantity, and unit price. Note: a manufacturer is characterized by its company’s name and address In addition to storing the information, the program should be able to make updates to the quantity and/or the price as time goes on. That is, when a sale is made, the quantity of that product must be reduced; similarly, when a product is re-ordered, the quantity of that product must be increased. Also, when there is a change in the price of a product, the price must be changed. The change must be interpreted as a replacement of the value. New products may be added to the inventory at any time; also, a product may be removed from the inventory at any time. Maintain a separate list the products that have been deleted from the database of active products.
Your program must be able to produce three kinds of reports, namely:

(a) Locate a single product and display its name, price and quantity alone.

(b) The inventory report should be structured as follows:

Product PurchaseDate Quantity Price Manufacturer State

Telephone 01/20/2013 10 254.99 Motorola FL

Computer 01/06/2013 15 756.99 CBS NY

: : : : : :

: : : : : :

(c) A list of the deleted products should be structured as follows:.

Product Date Manufacturer

Paper reams 01/20/2013 Morgan Jewelry

: : :

In your design, convince yourself that you need a minimum of four classes, not including the test class – Product, Manufacturer, Address, and Database. You may use the class called GetData.java, Listing 1.6 (in the textbook) , for inputting the data. Use a scrollable panes to display your output.
Computers and Technology
1 answer:
Alexandra [31]3 years ago
4 0

Answer:

// GetData.java

import javax.swing.JOptionPane;

public class GetData

{

  public static double getDouble(String s)

  {

      return Double.parseDouble(getWord(s));

  }

  public static int getInt(String s)

  {

      return Integer.parseInt(getWord(s));

  }

  public static String getWord(String s)

  {

      return JOptionPane.showInputDialog(s);

  }

  public static String getString(String s)

  {

      return JOptionPane.showInputDialog(s);

  }

}

// Address.java

public class Address

{

  private String street, city, state, zip;

  public Address(String str, String city, String st, String zip)

  {

      street = str;

      this.city = city;

      state = st;

      this.zip = zip;

  }

  public String getStreet()

  {

      return street;

  }

 

  public String getCity()

  {

      return city;

  }

  public String getState()

  {

      return state;

  }

  public String getZip()

  {

      return zip;

  }

}

// Manufacturer.java

public class Manufacturer

{

  private String companyName;

  private Address companyAddress;

 

  public Manufacturer()

  {

      this.companyName = "";

      this.companyAddress = null;

  }

 

  public Manufacturer(String compName, Address address)

  {

      this.companyName = compName;

      this.companyAddress = address;

  }

 

  public String getCompanyName()

  {

      return companyName;

  }

 

  public void setCompanyName(String companyName)

  {

      this.companyName = companyName;

  }

 

  public Address getCompanyAddress()

  {

      return companyAddress;

  }

 

  public void setCompanyAddress(Address address)

  {

      this.companyAddress = address;

  }

}

// Product.java

import java.text.SimpleDateFormat;

import java.util.Date;

public class Product

{

 

  SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");

 

 

  Manufacturer manufacture;

 

 

  String productName;

 

 

  int quantity;

 

 

  double unitPrice;

 

 

  Date productCreated;

 

 

  public Product()

  {

      this.productName = "";

      this.quantity = 0;

      this.unitPrice = 0.0;

      this.productCreated = null;

      this.manufacture = null;

  }

 

  public Product(String prodName, int quantity, double unitPrice,

                        Date productCreated, Manufacturer manufact)

  {

      this.productName = prodName;

      this.quantity = quantity;

      this.unitPrice = unitPrice;

      this.productCreated = productCreated;

      this.manufacture = manufact;

  }

 

 

  public Date getProductCreated()

  {

      return productCreated;

  }

 

 

  public void setProductCreated(Date productCreated)

  {

      this.productCreated = productCreated;

  }

 

  // to get the Manufacturer object

  public Manufacturer getManufacture()

  {

      return manufacture;

  }

 

  // to set the Manufacturer object

  public void setManufacture(Manufacturer manufacture)

  {

      this.manufacture = manufacture;

  }

 

  // to get the name of the product

  public String getProductName()

  {

      return productName;

  }

 

  // to set the name of the product

  public void setProductName(String prodName)

  {

      this.productName = prodName;

  }

 

  // to get the quantity of the product

  public int getQuantity()

  {

      return quantity;

  }

 

  // to set the quantity of the product

  public void setQuantity(int quantity)

  {

      this.quantity = quantity;

  }

 

  // to get the unit price of the product

  public double getUnitPrice()

  {

      return unitPrice;

  }

 

  // to set the unit price of product

  public void setUnitPrice(double unitPrice)

  {

      this.unitPrice = unitPrice;

  }

 

  // to update the quantity of the product

  public void upDateQuantity(int quantity_upDate)

  {

      quantity += quantity_upDate;

  }

 

  // to update the price of the product

  public void upDatePrice(double price_upDate)

  {

      this.unitPrice = price_upDate;

  }

 

 

  public String getProductInfomation()

  {

      String result = "";

      result += String.format("%-30s", productName);

      String dateForm = sdf.format(productCreated);

      result += String.format("\t %s", dateForm);

      result += String.format("%10d", quantity);

      result += String.format("\t%15.2f", unitPrice);

      result += String.format("\t%15s",

                          manufacture.getCompanyName());

      result += String.format("\t%20s",

                 manufacture.getCompanyAddress().getState());

      return result;

  }  

}

Explanation:

  • Create a manufacturer class to store and get information about company name and company address.
  • Create a product class to hold the manufacturer object, product name and other relevant information.
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A palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes: Ab
Pavlova-9 [17]

Answer:

Following are the program in the C++ Programming Language.

//header file

#include <iostream>

//header file for string

#include <string>

#include<cstring>

//using namespace

using namespace std;

//define Function to checks the string is passed is a Palindrome or not

bool is_Palin(string strng, int start_Position, int end_Position)

{

//set the if Conditional statement

if(start_Position >= end_Position)

{

return true;

}

//Check if the character is not the alphabet

if(!isalpha(strng[start_Position]))

{

//Update the starting position  

start_Position += 1;

//call Recursive function

return is_Palin(strng, start_Position++, end_Position);

}

//Check if the character is not the alphabet

if(!isalpha(strng[end_Position]))

{

//Update the end position

end_Position -= 1;

//call Recursive function

return is_Palin(strng, start_Position, end_Position--);

}

//Check if the characters are same or not same

if(tolower(strng[start_Position]) != tolower(strng[end_Position]))

{

return false;

}

//Update the positions

start_Position = start_Position + 1;

end_Position = end_Position - 1;

//call Recursive function

return is_Palin(strng, start_Position, end_Position);

}

//define Main function

int main()

{

string strng;

//get string from the user

cout << "\n\n Enter a string: ";

getline(cin, strng);

//Check for the palindrome

if(is_Palin(strng, 0, strlen(strng.c_str())-1))

{

 //then print message

cout << "\n Is a Palindrome!!!! \n";

}

//otherwise

else

{

//then print message

cout << "\n Is not a Palindrome!!!! \n";

}

return 0;

}

<u>Output:</u>

Enter a string:  Able was I, ere I saw Elba

Is a Palindrome!!!!

Explanation:

Here, we define a boolean data type function "is_Palin" to check the string which passed through is palindrome or not and pass and pass two integer type arguments for starting position and ending position and pass one string data type argument to pass string, inside the function.

  • Set the if conditional statement to check the condition if the start_position of the string is greater than end _position of the string then return true.
  • Set the if conditional statement to check the condition the start_position of the staring is alphabet then, update the start_position and call the recursion function.
  • Again set the if conditional statement to check the condition the end_position of the staring is alphabet then, update the end_position and call the recursion function.
  • Set the if conditional statement to check the condition if the start_position of the string is not equal to the end _position of the string then, return false.
  • Then, update the start_position and end _position of the string increment by 1 then, call the recursive function and then, close the function.

Finally, we define the main function and pass string through calling and passing and argument list in its parameter.  

5 0
3 years ago
compare the two methods of creating table in ms access ( Datasheet view and Design view) which one wouldyou prefer to use to rec
Snezhnost [94]

The main difference between the datasheet view and the design view is in the datasheet view, we can only view and do minor changes but in the design view, we can edit the table and modify it.

<h3>What is MS Access?</h3>

MS Access is a service of Microsoft, that is used in the sector of business and other companies, to store and manage data.

Datasheet view and design view are the two types of tables in ms access, the design view has more functions, you can change and edit the table.

Thus, the primary distinction between the datasheet view and the design view is that while we can examine and make some minor adjustments in the datasheet view, we can edit and amend the table in the design view.

Learn more about MS Access, here:

brainly.com/question/17135884

#SPJ1

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Discuss the causes ,symptoms, preventive measures and treatment of AIDS​
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Answer:

AIDS can be caused by having sexual intercourse with an AIDS-infected partner. It can only be spread through the contact of infected blood or fluid from a mother to child during childbirth.

There are many symptoms of AIDS. However, these are the most common symptoms of AIDS:

  1. Swollen lymph glands
  • Most of the white blood cells are produced there.

2. Weight loss

3. Diarrhea

There are many measures that can be put in placed to prevent AIDS.

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When adapting graphs for slides,
mojhsa [17]
I would say don't use more than 8-9 graph lines

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Suppose we have a linearly separable dataset, and we divide the data into training and validation sets. Will a perceptron learne
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Answer:

Theoretically Yes

Explanation:

The data given is linearly separable. So, the subset of the data will also be linearly separable. And it will pass for all training dataset. However, you should definitely never expect such thing In any real-life problem because the data is noisy, for a bazilion of reasons, so no model is guaranteed to perform perfectly.

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