Opening and Closing AccountsFile Account,java (see previous exercise) contains a definition for a simple bank account class with methods to withdraw,deposit, get the balance and account number, and return a String representation. Note that the constructor for this classcreates a random account number. Save this class to your directory and study it to see how it works. Then write the followingadditional code:1. Suppose the bank wants to keep track of how many accounts exist.Declare a private static integer variable numAccounts to hold this value. Like all instance and static variables, it willbe initialized (to 0, since it’s an int) automatically.а.b. Add code to the constructor to increment this variable every time an account is created.Add a static method getNumAccounts that returns the total number of accounts. Think about why this method shouldbe static - its information is not related to any particular account.c.d. File TestAccountsl1.java contains a simple program that creates the specified number of bank accounts then uses thegetNumAccounts method to find how many accounts were created. Save it to your directory, then use it to test yourmodified Account class.2. Add a method void close() to your Account class. This method should close the current account by appending"CLOSED" to the account name and setting the balance to 0. (The account number should remain unchanged.) Alsodecrement the total number of accounts.3. Add a static method Account consolidate(Account acctl, Account acct2) to your Account class that creates a newaccount whose balance is the sum of the balances in acct1 and acct2 and closes acct1 and acct2. The new account shouldbe returned. Two important rules of consolidation:• Only accounts with the same name can be consolidated. The new account gets the name on the old accounts but a newaccount number.Two accounts with the same number cannot be consolidated. Otherwise this would be an easy way to double yourmoney!Check these conditions before creating the new account. If either condition fails, do not create the new account or closethe old ones; print a useful message and return null.4. Write a test program that prompts for and reads in three names and creates an account with an initial balance of $ 100 foreach. Print the three accounts, then close the first account and try to consolidate the second and third into a new account.Now print the accounts again, including the consolidated one if it was created.//**********// TestAccounts1// A simple program to test the numAccts method of the// Account class.****************//********************** **************:************import java.util.Scanner;public class TestAccounts1public static void main(String[] args){Account testAcct;Scanner scan = new Scanner (System.in);Chapter 7: Object-Oriented Design113System.out.println("How many accounts would you like to create?"); int num =scan.nextInt();for (int i=1; i<=num; i++){testAcct = new Account (100, "Name"System.out.println("\nCreated accountSystem.out.println("Now there are+ i);+ testAcct);+ Account.numAccounts () +accounts");%3D}}}

Answered: v many accounts exist. numAccounts to…

v many accounts exist. numAccounts to hold this value. Lik omatically. at this variable every time an account hat returns the total number of accour to any particular account.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: If the following code, what will be the variable "value" equal to when y=2 is being executed: def…

A: The question has been answered in step2

Q: please fix the following , when user log in with debit# and pin and choose 1 for deposit and you…

A: Let's understand your requirement and let's see how we can achieve it step by step . We want to…

Q: he weather generator methods you will be writing for this assignment will: predict future…

A: A weather generator produces a “synthetic” time series of weather data for a location based onthe…

Q: C1. Write an assignment that assigns to a variable named red_change the percentage change in the red…

A: Required: C1.Write an assignment that assigns to a variable named red_change the percentage change…

Q: USe the guidelines and just show the result no need to say that your weight is over weight or…

A: // function named bmiCalculator_697 function bmiCalculator_697(m, h) { // calculate BMI return m…

Q: Petroleum Refinery A refinery blends four petroleum components into three grades of…

Q: Question Completion Status: 1 4 100 12 130 11 14 15 16 170 18 19 20 21 22 23 24 25 26р T pom JUYC…

A: To compute the minimum number of students in a section that holds the maximum number of students, we…

Q: Acme Parts runs a small factory and employs workers who are paid one of three hourly rates depending…

A: Objective: This program asks the user for hours worked and shift to display the total working hours,…

Q: Joe wants to record each transaction through the day and get the sum at the end of day. He would…

A: Required: Joe wants to record each transaction through the day and get the sum at the end of the…

Q: int goo = 5, bam bam = 12, hah = 6, еek; %3D double meh; eek = goo + bam % hah; meh = eek * goo +…

A: by the use of operator precendence

Q: Bob employs a Landscaping company that wants to use your services to help create an invoice…

A: We need to take input the number of hours worked by an employee. Then we know that they charge $30…

Q: Clunker Motors Inc. is recalling all vehicles in its Extravagant line from model years 1999-2002. A…

A: Code for the above requirements is given in next step

Q: Give Examples of Immediate value.

A: Immediate value: It is a piece of data stored in register memory as a part of instruction. Some of…

Q: Bob a builder has come to you to build a program for his construction business. He needs to…

A: Given: Bob a builder has come to you to build a program for his construction business. Heneeds to…

Q: Type" alone does not define a variable. Variables contain distinct features, including data types.…

A: In programming, a variable is a named storage location that holds a value. The concept of data types…

Q: Declaration of variables shares - 2000 shareBuy - 40 shareSell - 42.75 brokerRate - 0.03 SProcessing…

A: Introduction of Flow Chart: A flow chart is a pictorial representation of any task or program. It…

Concept explainers

Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.

Question

Opening and Closing Accounts
File Account,java (see previous exercise) contains a definition for a simple bank account class with methods to withdraw,
deposit, get the balance and account number, and return a String representation. Note that the constructor for this class
creates a random account number. Save this class to your directory and study it to see how it works. Then write the following
additional code:
1. Suppose the bank wants to keep track of how many accounts exist.
Declare a private static integer variable numAccounts to hold this value. Like all instance and static variables, it will
be initialized (to 0, since it’s an int) automatically.
а.
b. Add code to the constructor to increment this variable every time an account is created.
Add a static method getNumAccounts that returns the total number of accounts. Think about why this method should
be static - its information is not related to any particular account.
c.
d. File TestAccountsl1.java contains a simple program that creates the specified number of bank accounts then uses the
getNumAccounts method to find how many accounts were created. Save it to your directory, then use it to test your
modified Account class.
2. Add a method void close() to your Account class. This method should close the current account by appending
"CLOSED" to the account name and setting the balance to 0. (The account number should remain unchanged.) Also
decrement the total number of accounts.
3. Add a static method Account consolidate(Account acctl, Account acct2) to your Account class that creates a new
account whose balance is the sum of the balances in acct1 and acct2 and closes acct1 and acct2. The new account should
be returned. Two important rules of consolidation:
• Only accounts with the same name can be consolidated. The new account gets the name on the old accounts but a new
account number.
Two accounts with the same number cannot be consolidated. Otherwise this would be an easy way to double your
money!
Check these conditions before creating the new account. If either condition fails, do not create the new account or close
the old ones; print a useful message and return null.
4. Write a test program that prompts for and reads in three names and creates an account with an initial balance of $ 100 for
each. Print the three accounts, then close the first account and try to consolidate the second and third into a new account.
Now print the accounts again, including the consolidated one if it was created.
//**********
// TestAccounts1
// A simple program to test the numAccts method of the
// Account class.
****
************
//******************
**** ********
******:
************
import java.util.Scanner;
public class TestAccounts1
public static void main(String[] args)
{
Account testAcct;
Scanner scan = new Scanner (System.in);
Chapter 7: Object-Oriented Design
113
System.out.println("How many accounts would you like to create?"); int num =
scan.nextInt();
for (int i=1; i<=num; i++)
{
testAcct = new Account (100, "Name"
System.out.println("\nCreated account
System.out.println("Now there are
+ i);
+ testAcct);
+ Account.numAccounts () +
accounts");
%3D
}
}
}

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

BMI is a measure of body condition and it is related to a person's weight and height. In the metric system, for weight given in Kilograms (Kg) and height given in centimeters (cm), the BMI value is given by: $BMI=10000*weight/(height^2)$. The person's condition is given by the table below:\n", "\n", "| BMI | Condition|\n", "|-----|----------|\n", "| <18.5| Underweight|\n", "|>=18.5 and <25| Normal |\n", "|>=25 and <30| Overweight |\n", "|>= 30 | Obese|\n", "\n", Write a program that asks for a person's height in cm and weight in Kg and print's the person's condition.
Annotate following code. def QualityPointCalculator(qualPnts, crdts): if crdts > 0: return qualPnts/crdts return 0def convertGrade(grade): if grade == "A": return 4.00 elif grade == "A-": return 3.70 elif grade == "B+": return 3.30 elif grade == "B": return 3.00 elif grade == "B-": return 2.70 elif grade == "C+": return 2.30 elif grade == "C": return 2.00 elif grade == "C-": return 1.70 elif grade == "D+": return 1.30 elif grade == "D": return 1.00 else: return 0.00 def calcQualPnts(pnts, crdts): return pnts*crdts if __name__ == '__main__': quality_points = [] course_names = [] grades = [] credits = [] final_gpa = 0.0 semester_gpa = 0.0 final_total = 0.0 howMany = 0 print('GRADE & QUALITY NUMERICAL POINTS') choice = input('Would you like to calculate your GPA for a term? Enter Y/N: ') while choice.upper()[0] == 'Y':…
By using Loop in c++, you are responsible to develop a Credit Limit Calculator, which will determine if their customer has exceeded the credit limit on a charge account. For each customer, the following facts are available:- a) Account number b) Balance at the beginning of the month c) Total of all items charged by this customer this month d) Total of all credits applied to this customer's account this month e) Type of Membership: SVIP(S), VIP(V) and Basic(B) Your program should input each for these facts, calculate the new balance (= beginning balance + charges - credit), and determine if the new balance exceeds the customer's credit limit. The customer's credit limit is based on their membership type as below:- Type of Membership SVIP (S) VIP (V) Basic (B) Credit Limit (HK$) 20,000 10,000 5,000 For those customers whose credit limit is exceed, the program should display the customer's account number, type of membership, credit limit, new balance and the message "Credit Limit"…
Last Name Dev Hours Review Date Rating Salary Bonus Brody 6 1/5/2018 2 $ 19,840 Alex 8 4/1/2018 5 $ 26,700 Ashley 1 7/1/2018 4 $ 33,200 1. Use the logical if function to pay a bonus. You determine the rules for the bonus. List the rules and your steps. For example, you may use the employee rating to align with a specific bonus percentage such as 2% for a 2 rating, 5% for a 5 rating, etc.
Answer this question attached
13. Factorial Implementation What is incorrect with the following implementation of factorial: def factorial(n): return n* factorial(n-1) Pick ONE option Nothing is wrong The return value should be n+ factorial(n-1) The return value should be factorial(n-1) * factorial(n-2) ) A base case is missing Clear Selection loxitu
OCaml Questions: Please make sure to answer each question correctly and indicate which question you are answering. There must be no mistake in any of the answers.
Credit Rating (feature1) Liabiltiy or not (Target) Yes No Total Excellent 3 1 4 Good 4 2 6 Poor 0 4 4 Total 7 7 14 Balance (feature2) Liabiltiy or not (Target) Yes No Total >50K 2 6 8 < 50 K 5 1 6 Total 7 7 14 Liability Tables Refer to the ‘Liability’ tables above, the target variable is Liability which can take on two values “Yes” and “No” and we 2 features: Credit Rating (which can take on values “Excellent”, “Good” and “Poor”), and Balance (which can take on values “> 50K”, “< 50K”). There are 14 observations in total. See the above liability table for different figures of ‘excellent’, ‘good’, ‘poor’ credit ratings and ‘Yes’, ‘No’ liability class. Use decision tree algorithm to work out which feature provides more information or reduces more uncertainty about our target variable out of the two using the concepts of entropy and information Gain.Please answer ASAP,…
Create a function named fnTuition that calculates the tuition for a student. This function accepts one parameter, the student ID, and it calls the fnStudentUnits function that you created in task 2. The tuition value for the student calculated according to the following pseudocode: if (student does not exist) or (student units = 0) tuition = 0 else if (student units >= 9) tuition = (full time cost) + (student units) * (per unit cost) else tuition = (part time cost) + (student units) * (per unit cost) Retrieve values of FullTimeCost, PartTimeCost, and PerUnitCost from table Tuition. If there is no student with the ID passed to the function, the function should return -1. Code two tests: 1) a student who has < 9 student units, and 2) for a student who has >= 9 student units. For each test, display StudentID and the result returned by the function. Also, run supportive SELECT query or queries that prove the results to be correct.
Question 14 papa .Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this line
Fill in the blank in the following statement.A store sells an item for 50% more than it's sale price. This means the original price of the item is ______ times larger than the sale price.
Java