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Liono4ka [1.6K]
4 years ago
8

Look at the following description of a problem domain:The bank offers the following types of accounts to its customers: saving a

ccounts, checking accounts and money market accounts. Customers are allowed to deposit money into an account (thereby increasing its balance), withdraw money from an account (thereby decreasing its balance) and earn interest on the account. Each account has an interest rateAssume that you will write the code for an application that will calculate the amount of interest earned for a bank account.Use word document to answer the following questions:1) Identify the potential classes in this problem domain be list all the nouns2) Refine the list to include only the necessary class names for this problem3) Identify the responsibilities of the class or classes.
Computers and Technology
1 answer:
Alchen [17]4 years ago
5 0

Answer:

The answers are explained below

Explanation:

1) Identify the potential classes in this problem domain be list all the nouns

class Customer

class Acco  unt

2) Refine the list to include only the necessary class names for this problem

the class customer is not necessary to solve the problem itself, therefore the only class could be the account class

3) Identify the responsibilities of the class or classes.

The responsibilities of the class account will be

* determination of the type of account--> Acc  ount . type(char)

*  deposit money into the account --> Acc  ount . de posit(float)

* withdraw money into the account --> Acc  ount . with draw(float)

* show balance of the account --> Acc  ount . bal ance()

* generate interest --> Acc  ount . int erest()

Please join the words together. I used spaces due to regulations

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When the code that follows is executed, a message is displayed if the value the user entersvar userEntry = (prompt("Enter cost:"
Reika [66]

Answer:

The answer is "Option b".

Explanation:

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How many bits does it take to store a 3-minute song using an audio encoding method that samples at the rate of 40,000 bits/secon
blondinia [14]

Answer:

115200000 bits

Explanation:

Given Data:

Total Time = 3 minute = 3 x 60 sec = 180 sec

Sampling rate = 40,000 bits / sample

Each sample contain bits = 16 bits /sample

Total bits of song = ?

Solution

Total bits of song = Total Time x Sampling rate x Each sample contain bits

                             = 180 sec x 40,000 bits / sec x 16 bits /sample

                             = 115200000 bits

                             =  115200000/8 bits

                             = 14400000 bytes

                             = 144 MB

There are total samples in one second are 40000. Total time of the song is 180 seconds and one sample contains 16 bits. so the total bits in the song are 144 MB.

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Assume that a gallon of paint covers about 350 square feet of wall space. Create anapplication with a main() method that prompts
Elena-2011 [213]

Answer:

import java.util.Scanner;

public class PaintClculator {

   public static void main(String[] args) {

Scanner in = new Scanner(System.in);

       System.out.println("Enter Values for length, width, and height of the room");

       double length = in.nextDouble();

       double width = in.nextDouble();

       double height = in.nextDouble();

       double wallArea = calculateWallArea(length,width,height);

       double noGallons = calculatePaint(wallArea);

       double price = price(noGallons);

       System.out.println("Price is: "+ price);

   }

   // Creating Method to Calculate Wall Area

   public static double calculateWallArea( double length, double width, double height){

       // formular for the surface area of a room Area=2*length*heigth+2*width*height+lenth*width

       double Area = 2*length*height+2*width*height+length*width;

       System.out.println("Wall Area: "+Area);

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   }

   //Creating method to calculate amount of paint

   public static double calculatePaint(double Area){

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   }

   // Creating Method Calculate Price

   public static double price(double noGallons){

       return noGallons*32;

   }

}

Explanation

  1. Created Three Methods in all; calculateWallArea(), calculatePaint(), and price()
  2. Method calculateWallArea() calculates area based on this formula Area=2*length*heigth+2*width*height+lenth*width
  3. The value of Area is passed to method calculatePaint() Which calculates the number of gallons required to cover the area given that one gallon covers 350 wall space
  4. Method price() calculates and dis[plays the price by calling method calculatePaint() that returns number of gallons. since one gallon is 32$
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