Derek Elder: Additions

2009-02-09T00:12:14Z

Additions

Derek Elder: Start of page

2008-10-30T00:56:41Z

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__TOC__
==GUI.java==
<pre>
//*******************************************************************
// GUI Class Author: Derek Elder
//********************************************************************
package program04;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class GUI extends JPanel
{
private JLabel prompt;
private JRadioButton one, two, three, four, five, six;
private String ioFile = "";

public GUI()
{
prompt = new JLabel("Choose your action: ");
prompt.setFont (new Font("Helvetica", Font.BOLD, 30));
one = new JRadioButton("Enter a transaction");
one.setBackground(Color.blue);
two = new JRadioButton("List all transactions");
two.setBackground(Color.blue);
three = new JRadioButton("List all checks");
three.setBackground(Color.blue);
four = new JRadioButton("List all deposits");
four.setBackground(Color.blue);
five = new JRadioButton("Read from File");
five.setBackground(Color.blue);
six = new JRadioButton("Write to File");
six.setBackground(Color.blue);

ButtonGroup group = new ButtonGroup();
group.add(one);
group.add(two);
group.add(three);
group.add(four);
group.add(five);
group.add(six);

GUIListener listener = new GUIListener();
one.addActionListener(listener);
two.addActionListener(listener);
three.addActionListener(listener);
four.addActionListener(listener);
five.addActionListener(listener);
six.addActionListener(listener);

//Add the components to the JPanel
add(prompt);
add(one);
add(two);
add(three);
add(four);
add(five);
add(six);
setBackground(Color.blue);
setPreferredSize(new Dimension(350, 100));
}
//*****************************************************************
// Represents the listener for the radio buttons
//*****************************************************************
private class GUIListener implements ActionListener
{
public void actionPerformed(ActionEvent event)
{
Object source = event.getSource();

if(source == one)
{
Main.doTransactions();
}
else if(source == two)
{
Main.listTransactions();
}
else if(source == three)
{
Main.listChecks();
}
else if(source == four)
{
Main.listDeposits();
}
else if(source == five)
{
Main.readFromFile();
}
else //if(source == six)
{
Main.writeToFile();
}
}
}
}
</pre>
==Transaction.java==
<pre>
//*******************************************************************
// Transaction Class Author: Derek Elder
//********************************************************************

package program04;

import java.text.NumberFormat;

public class Transaction
{
private int transID;
private int transNumber; //Current value of transCount
private float transAmt;
private String transType;

public int getTransID()
{
return transID; //1 = check, 2 = deposit 3 = service charge
}
public int getTransNumber()
{
return transNumber;
}
public float getTransAmt()
{
return transAmt;
}
public Transaction(int currentTransID, int currentTransNumber, float currentTransAmt)
{
transID = currentTransID;
transNumber = currentTransNumber;
transAmt = currentTransAmt;
}
public String toString()
{
NumberFormat fmt = NumberFormat.getCurrencyInstance();
String description;

if(transID == 1)
{
transType = "Check";
}
else if(transID == 2)
{
transType = "Deposit";
}
else //(transID == 3)
{
transType = "S.Ch.";
}

description = transNumber + "\t\t" + transType + "\t\t" + fmt.format(transAmt);

return description;
}
}
</pre>
==Account.java==
<pre>
//*******************************************************************
// Account Class Author: Derek Elder
//********************************************************************
package program04;

public class Account
{
private String name;
private double balance;

public String getName()
{
return name;
}
public double getBalance()
{
return balance;
}
}
</pre>
==CheckingAccount.java==
<pre>
//*******************************************************************
// CheckingAccount Class Author: Derek Elder
//********************************************************************

package program04;

import java.text.NumberFormat;

public class CheckingAccount
{
private float balance;
private float totalServiceCharge; //Changed from double
private int transCount;
private Transaction[] tList;

public void addTrans(int transID, int transNumber, float transAmt)
{
if(transCount == tList.length)
increaseArray();

tList[transCount] = new Transaction(transID, transNumber, transAmt);
transCount++;
}
public void getTrans(int checkOrDeposit)
{
int i;
for(i = 0;i < transCount;i++)
{
if(tList[i].getTransID() == checkOrDeposit)
{
System.out.println(tList[i]);
}
}
}
public int getTransCount()
{
return transCount;
}
public float getBalance()
{
return balance;
}
public float setBalance(float currentBalance, int tCode)
{
if(tCode == 1 || tCode == 0)
balance -= currentBalance;
else //if(tCode == 2)
balance += currentBalance;
return balance;
}
public float getServiceCharge()
{
return totalServiceCharge;
}
public float setServiceCharge(float currentServiceCharge)
{
totalServiceCharge += currentServiceCharge;
return totalServiceCharge;
}
public CheckingAccount() //Needed?
{
balance = 0;
totalServiceCharge = 0;
tList = new Transaction[10];
transCount = 0;
}
public CheckingAccount(float currentBalance, float currentServiceCharge)
{
balance = currentBalance;
totalServiceCharge = currentServiceCharge;
tList = new Transaction[10];
transCount = 0;
}
public String toString()
{
NumberFormat fmt = NumberFormat.getCurrencyInstance();
int i;

String report = "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
report += "My Transaction Status\n\n";
report += "Balance: " + balance + "\n";
report += "Total Service Charge: " + fmt.format(totalServiceCharge) + "\n";
report += "Number of Transactions: " + transCount;
report += "\n\nChecking Account List:\n\n";
report += "ID\t\tType\t\tAmount\n";
report += "---------------------------------------\n";

for(i = 0; i < transCount; i++)
report += tList[i] + "\n";

return report;
}
private void increaseArray()
{
int i;
Transaction[] temp = new Transaction[tList.length * 2];

for(i = 0; i < tList.length; i++)
temp[i] = tList[i];
tList = temp;
}
}
</pre>
==Main.java==
<pre>
//*******************************************************************
// Program 4 Author: Derek Elder
//********************************************************************

package program04;

import java.text.DecimalFormat;
import javax.swing.JOptionPane;
import javax.swing.JFrame;

public class Main
{
public static JFrame frame;
public static CheckingAccount account = null;
public static boolean below500 = false;
public static String filename = "C:\\student\\accounts.dat";

public static void main(String[] args)
{
frame = new JFrame("Checking Account Actions");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GUI panel = new GUI();
frame.getContentPane().add(panel);
frame.pack();
frame.setVisible(true);
}
public static void doTransactions()
{
int tCode = 0;
String stringBalance, stringTCode, stringTransAmt, message;
float balance, transAmt, charge, balanceBeforeCharge;
//boolean done = false;
charge = 0.00f;
frame.setVisible(false);
if(account == null)
{
stringBalance = JOptionPane.showInputDialog("Enter your initial balance: ");
balance = Float.parseFloat(stringBalance);
//CheckingAccount account = new CheckingAccount(); //Old version
account = new CheckingAccount(balance, charge);
}

//while(!done)
//do
{
stringTCode = JOptionPane.showInputDialog("Enter the trans code: ");
tCode = Integer.parseInt(stringTCode);
DecimalFormat fmt = new DecimalFormat ("0.00"); //Round to two decimal places
if(tCode == 1)
{
stringTransAmt = JOptionPane.showInputDialog("Enter the trans amount: ");
transAmt = Float.parseFloat(stringTransAmt);
account.setBalance(transAmt, tCode);
account.addTrans(1,account.getTransCount(),transAmt);
if(account.getBalance() < 0.00)
{
if(below500 == true)
{
charge = 10.15f; //Cost of Check + Below $0 charge
account.setServiceCharge(charge);
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Warning : Balance below $50.00" + "\n" +
"Service charge : Below $0 -- charge $10.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.15f);
account.addTrans(3,account.getTransCount(),10.00f);
}
else
{
charge = 5.15f; //Cost of Check + Below $500 charge
account.setServiceCharge(charge);
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Service charge : Below $500.00 -- charge $5.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
below500 = true;
account.addTrans(3,account.getTransCount(),0.15f);
account.addTrans(3,account.getTransCount(),5.00f);
}
//done = false;
}
else if(account.getBalance() < 500.00 && below500 == false)
{
charge = 5.15f; //Cost of Check + Below $500 charge
account.setServiceCharge(charge);
below500 = true;
if(account.getBalance() < 50.00)
{
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Warning : Balance below $50.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.15f);
account.addTrans(3,account.getTransCount(),5.00f);
}
else
{
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Service charge : Below $500.00 -- charge $5.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.15f);
account.addTrans(3,account.getTransCount(),5.00f);
}
}
else
{
charge = 0.15f;
account.setServiceCharge(charge);
if(account.getBalance() < 50.00)
{
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Warning : Balance below $50.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.15f);
}
else
{
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Check -- charge $0.15" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.15f);
}
}
//done = false;
}
else if(tCode == 2)
{
stringTransAmt = JOptionPane.showInputDialog("Enter the trans amount: ");
transAmt = Float.parseFloat(stringTransAmt);
charge = 0.10f;
account.setServiceCharge(charge);
account.setBalance(transAmt, tCode);
account.addTrans(2,account.getTransCount(),transAmt);
if(account.getBalance() <= 50.00)
{
message = "Transaction : Check in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Deposit -- charge $0.10" + "\n" +
"Warning : Balance below $50.00" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.10f);
}
else
{
message = "Transaction : Deposit in the amount of $" + fmt.format(transAmt) + "\n" +
"Current Balance : $" + fmt.format(account.getBalance()) + "\n" +
"Service charge : Deposit -- charge $0.10" + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
account.addTrans(3,account.getTransCount(),0.10f);
}
//done = false;
}
else //tCode = 0
{
balanceBeforeCharge = account.getBalance();
charge = account.getServiceCharge();
account.setBalance(charge, tCode);
message = "Transaction : End" + "\n" +
"Current Balance : $" + fmt.format(balanceBeforeCharge) + "\n" +
"Total service charge : $" + fmt.format(account.getServiceCharge()) + "\n" +
"Final Balance : $" + fmt.format(account.getBalance());
JOptionPane.showMessageDialog(null, message);
//done = true;
System.exit(0); //Modify to window listener?
}
}
frame.setVisible(true);
}
public static void listTransactions()
{
System.out.println(account);
}
public static void listChecks()
{
account.getTrans(1);
}
public static void listDeposits()
{
account.getTrans(2);
}
}
</pre>
==Code from Class==
<pre>
public static void readElements()
{
chooseFile(1);
try
{
FileInputStream fis = new
FileInputStream(filename);
ObjectInputStream in = new
ObjectInputStream(fis);
Integer eCountObj = (Integer)in.readObject();
int eCount = eCountObj.intValue();
System.out.println("count of objects in file = "+ eCount);
for (int i = 0; i < eCount; i++)
{
System.out.println("reading object "+ i);
eList[i] = (ChemicalElement)in.readObject();
}
in.close();
ChemicalElement.setNumOfElements(eCount);
}
catch(ClassNotFoundException e)
{
System.out.println(e);
}

catch (IOException e)
{
System.out.println(e);
}
}
public static void writeElements()
{
chooseFile(2);
try
{
FileOutputStream fos = new
FileOutputStream(filename);
ObjectOutputStream out = new
ObjectOutputStream(fos);
int eCount = ChemicalElement.getNumOfElements();
Integer eCountObj = new Integer(eCount);
out.writeObject(eCountObj);
for (int i = 0; i < eCount; i++)
{
System.out.println("writing object "+ i);
out.writeObject(eList[i]);
}
out.close();

}
catch(IOException e)
{
System.out.println(e);
}

}
public static void chooseFile(int ioOption)
{
int status, confirm;

String message = "Would you like to use the current default file: \n" +
filename;
confirm = JOptionPane.showConfirmDialog (null, message);
if (confirm == JOptionPane.YES_OPTION)
return;
JFileChooser chooser = new JFileChooser();
if (ioOption == 1)
status = chooser.showOpenDialog (null);
else
status = chooser.showSaveDialog (null);
if (status == JFileChooser.APPROVE_OPTION)
{
File file = chooser.getSelectedFile();
filename = file.getPath();
}
}
</pre>

Directory:Derek Elder/Programs/CheckingAccount4 - Revision history

Derek Elder: Additions

Derek Elder: Start of page