BankAccount Example

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BankAccount Example

• Nattapong Songneam
• http//www.siam2dev.com
• xnattapong_at_hotmail.com

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Class Diagram with Multiple Classes
Customer
BankAccount
account
- firstName String
- balance double
- lastName String
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- account BankAccount

BankAccount(initBalancedouble)
getBalance double

Customer(fString, lString)
deposit(amt double)
getFirstName String
withdraw(amt double)
getLastName String
setAccount( acctBankAccount)
getAccount( ) BankAccount
Class Diagram of Customer.java and
BankAccount.java
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????? Project ????

• ????????? File
• ????? New Project

• ????????? File
• ????? New Project

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????? Project ????

• ????? java
• ????? java application
• ?????? Next

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???????????? BankAccount
????? Project ????

• Name BankAccount
• Location C\java_project
• ?????? finish

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????? ???????? (New File)
????? Project ????

• ????????? File
• ????? New File

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????? Project ????
????? ???????? (New File)

• ????? java
• ????? java class
• ?????? Next

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BankAccount2

• ????? Class Name BankAccount2
• ??????

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??????????? Balance
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????? ????????????? (constructor)
initBalance initial ???????? Balance ???????
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?????????????????????? (deposit)
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?????????????????????? (withdraw)
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Error ????????????
Error ??????????? return
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???????????

• /
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• /
• package bankaccount
• /
• _at_author nat
• /
• public class BankAccount2
• private double Balance
• public BankAccount2()
• Balance 0.0
• public BankAccount2(double initBalance)

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????? object ??? BankAccount2
Overloading constructor method
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?????????????? Overloading Method
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???????????????? BankAccount2
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???????????????
????????? RUN
???????
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Customer
public class Customer private String
firstName private String lastName private
BankAccount2 account public Customer(String f,
String l) this.firstName f this.lastName
l this.account null public String
getName() return (this.firstName " "
this.lastName) public BankAccount2
getAccount() return this.account public
void setAccount(BankAccount2 acct) this.account
acct
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• public static void main(String args)
• Customer cust new Customer("Joe","Goodman")
  
• cust.setAccount(new BankAccount2(3000.0))
• System.out.println("customer "
  cust.getName()
• " open account with balance "
• cust.getAccount().getBalance() "
  baht.")
• cust.getAccount().deposit(1250.25)
• System.out.println("customer "
  cust.getName()
• " deposit 1250.25 baht "
• " current balance "
• cust.getAccount().getBalance() "
  baht.")

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• GUI graphic user interface

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GUI graphic user interface
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???? OK
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?????????? Exit
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?????? jButton2
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(No Transcript)