Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Question
Chapter 22, Problem 4PE
Program Plan Intro
Error checking
Program plan:
Filename: “BankAccount.java”
- Include the header files in the program
- Define the “BankService” class
- Declare the required variables
- Define the constructor
- Set the values
- Define the parameterized constructor
- Set the value
- Define the “deposit” method
- Call the method
- In “try” block,
- Calculate the new balance
- Set the balance
- In finally block, call the method
- Define the “withdraw” method
- Call the method
- In “try” block,
- Check the “amount” is greater than “balance”
- Throw “InsufficientFundsException” exception
- Check the “amount” is less than 0
- Throw “InsufficientFundsException” exception
- Calculate the new balance
- Set the balance
-
- In finally block, call the method
- Check the “amount” is greater than “balance”
- Define “getBalance ()” method
- Return the balance
Filename: “BankService.java”
- Include the required header files
- Define the class “BankService”
- Define the “main” method
- Declare the required variables.
- Define the constructor
- Set the values
- Define the “run ()” method
- In try block,
- Create the objects for “Scanner” and “PrintWriter” class in another “try” block.
-
- Call “doService()” method
- Finally, close the connection
-
-
- In catch block, throw an exception
-
- In try block,
- Define the “doService ()” method
- Execute all command until the QUIT command or the end of input
- Declare the string variable
- In “try” block,
- Call the “executeCommand ()” method and store the result in “response” variable
-
-
- In “catch” block, throw “InsufficientFundsException”, “InvalidCommandException”, and “NoSuchAccountException”.
- Print the response
-
- Define the “executeCommand ()” method
- Check the condition
- Throw “InvalidCommandException”
-
-
- Get the account number
- Check “command” is equal to “DEPOSIT”
- Get the amount
- Call “deposit ()” method in “Bank” class
- Check “command” is equal to “WITHDRAW”
- Get the amount
- Call “withdraw ()” method in “Bank” class.
- Check “command” is equal to “BALANCE”
- Print the invalid message
- Call the “getBalance” method and store the result
- Return the value
- Print the balance
-
- Check the condition
- Define the “main” method
Filename: “InsufficientFundsException.java”
- Define the “InsufficientFundsException” class
- Define the constructor
- Call the “super” method
- Define the constructor
Filename: “InvalidCommandException.java”
- Define the “InvalidCommandException” class
- Define the constructor
- Call the “super” method
- Define the constructor
Filename: “NoSuchAccountException.java”
- Define the “NoSuchAccountException” class
- Define the constructor
- Call the “super” method
- Define the constructor
Expert Solution & Answer
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Check out a sample textbook solutionChapter 22 Solutions
Big Java Late Objects
Ch. 22.1 - Prob. 1SCCh. 22.1 - Prob. 2SCCh. 22.2 - Prob. 3SCCh. 22.2 - Prob. 4SCCh. 22.3 - Prob. 5SCCh. 22.3 - Prob. 6SCCh. 22.4 - Prob. 7SCCh. 22.4 - Prob. 8SCCh. 22.5 - Prob. 9SCCh. 22.5 - Prob. 10SC
Ch. 22 - Prob. 1RECh. 22 - Prob. 2RECh. 22 - Prob. 3RECh. 22 - Prob. 4RECh. 22 - Prob. 5RECh. 22 - Prob. 6RECh. 22 - Prob. 7RECh. 22 - Prob. 8RECh. 22 - Prob. 9RECh. 22 - Prob. 10RECh. 22 - Prob. 11RECh. 22 - Prob. 12RECh. 22 - Prob. 13RECh. 22 - Prob. 14RECh. 22 - Prob. 15RECh. 22 - Prob. 16RECh. 22 - Prob. 17RECh. 22 - Prob. 18RECh. 22 - Prob. 1PECh. 22 - Prob. 2PECh. 22 - Prob. 3PECh. 22 - Prob. 4PECh. 22 - Prob. 5PECh. 22 - Prob. 1PPCh. 22 - Prob. 2PPCh. 22 - Prob. 3PPCh. 22 - Prob. 4PP
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