DATABASE SYSTEM CONCEPTS LCPO
7th Edition
ISBN: 9781265586577
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 1, Problem 14E
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Reason for emerging of “Not only Structured Query Language ((NoSQL)”:
The following is the reason for emerging the “No SQL” language in 2000’s,
- The various data intensive application and rapid data development starts up the “NoSQL” because it is the light weight form of data management.
- This supports high level query language on the relational model which makes the programmer comfortable to work with new types of data...
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this module is java 731 , follow all instructions and make sure the outputs are like what they expect and make sure the code is 100% correct . include all comments , layout and structure to be perfect too, thanks.
Question 1:
E-Hailing Bicycle Management System
Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles).
The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles.
Requirements:
Add and View Bicycles:
Borrow Bicycles:
Return Bicycles
Display Borrowed Bicycles and Search for a bicycle
Create a menu-driven program to implement the above.
Sample Output:
Add Bicycle
View All Bicycles
Borrow Bicycle
Return…
Add a method called transfer () to the BankAccount class, that takes in an amount and
destinationAccount as input and transfer the funds from current account to destination
account.
This method should return the balance of the current account after the transfer, also should
check for the sufficient balance in current account before proceeding the transfer and if there is
insufficient balance return an error message "Insufficient balance".
Modify the BankAccount Test class, so that it calls the transfer () method and prints the
balance after transfer.
Make sure that the transfer() method updates the balance of both the current account
and the destination account.
• Create a public method called deposit() that takes in an amount of type double as input
and adds the amount to the current balance. This method should also return the updated
balance.
• Create another public method called withdraw() that takes in an amount of type double as
input, checks if the withdrawal amount is less than the current balance, and if so, subtracts
the amount from the balance. If the withdrawal amount is greater than the current balance,
the method should return an error message "Insufficient balance".
• Create a public method getAccountInfo() that returns the account information in the format
"Account Number: xxxxx, Account Holder: John Doe, Account Type: SAVINGS/CHECKING,
Balance: $xxxX.XX".
• Finally, create a constructor method that takes in the account number, account holder name,
initial balance and account type as input and initializes the corresponding instance variables.
In the BankAccount class, make sure to use the private access modifier for the
instance…
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- Create a BankAccount Test class that contains a main() method that instantiates an object of type BankAccount, with account number of 12345, account holder name of "John Doe", initial balance of $1000 and account type as SAVINGS . Then use the deposit() and withdraw() methods of the object to deposit $500 and withdraw $300. Finally, use the getAccountInfo() method to print the current account information. Use the getAccountInfo() method to verify that the deposit and withdrawal actions are performed correctly and that the account information is updated accordingly.arrow_forwardAdd a new class checkingAccount that inherits from the BankAccount class, and has a double instance variable overdraft Limit in addition to the variables inherited from the superclass. • Create a constructor for the checking Account class that takes in the account number, account holder name, initial balance, account type and overdraft limit as input, and uses the super keyword to call the constructor of the superclass, passing in the account number, account holder name and initial balance, account type. • Re-write the withdraw() method in the checkingAccount class so that it first checks if the withdrawal amount is less than the current balance plus the overdraft limit. If it is, the withdrawal is allowed and the balance is updated. If not, the method should return an error message "Insufficient funds". • Create a new method displayOverdraft Limit() that returns the overdraft limit of the CheckingAccount . • In the BankAccountTest class, create a new object of type Checking Account…arrow_forwardExplain what the rwpos() function does. What is the base case? What values are passed to the recursive call? What value is returned by the original function call?arrow_forward
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- java: Question 1: (40 MARKS) E-Hailing Bicycle Management System Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles). The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles. Requirements: Add and View Bicycles: Borrow Bicycles: Return Bicycles Display Borrowed Bicycles and Search for a bicycle Create a menu-driven program to implement the above. Sample Output: Add Bicycle View All Bicycles Borrow Bicycle Return Bicycle View Borrowed Bicycles Search Bicycle ExitEnter your choice: Question 2 (30 MARKS) Pentagonal Numbers Problem Statement Create a Java program that will display the first 40 pentagonal…arrow_forwardRequest for Java Programming Expert Assistance - Module: Java 731 Please assign this to a human expert for detailed Java programming solutions. The AI keeps attempting to answer it, but I need expert-level implementation. Question 1 (40 MARKS) - E-Hailing Bicycle Management System Case Study:An e-hailing company needs a Java system to manage bicycle rentals. Key requirements: Users (families with children ≤18) can borrow up to 2 bicycles. Track bicycles (name, make, type, availability) and users (name, ID, borrowed bikes). Use a multidimensional array for bicycle data. Functionalities: Add/view bicycles. Borrow/return bicycles. Display borrowed bikes and search functionality. Menu-driven program with the following options: Copy 1. Add Bicycle 2. View All Bicycles 3. Borrow Bicycle 4. Return Bicycle 5. View Borrowed Bicycles 6. Search Bicycle 7. Exit Question 2 (30 MARKS) - Pentagonal Numbers Problem Statement:Write a Java program to display the first 40…arrow_forwardmodule , java 731 Question 1: (40 MARKS) E-Hailing Bicycle Management System Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles). The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles. Requirements: Add and View Bicycles: Borrow Bicycles: Return Bicycles Display Borrowed Bicycles and Search for a bicycle Create a menu-driven program to implement the above. Sample Output: Add Bicycle View All Bicycles Borrow Bicycle Return Bicycle View Borrowed Bicycles Search Bicycle ExitEnter your choice:arrow_forward
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