The document provides a Java application for managing a checking account, allowing users to enter transactions such as deposits and checks, and displaying account balances and service charges. It involves various classes, including 'checkingaccount', 'transaction', and a GUI panel for user input. The main functionalities include processing transactions, calculating service charges, and listing transaction history.

1. help me Java project
I put problem and my own code in the link
my code is long link : https://codeshare.io/YohNo
Solution
import javax.swing.*;
import java.awt.Font;
import javax.swing.JOptionPane;
import java.text.DecimalFormat;
import java.util.Scanner;
public class Assignment21 {
/**
* @param args the command line arguments
*/
public static JFrame frame;
public static DecimalFormat fmt = new DecimalFormat ("0.00;(0.00)");
public static String message;
public static boolean firstTime = true;
public static boolean firstTime2 = true;
public static CheckingAccount CheckAcc;
public static Transaction newTrans;
public static void main(String[] args) {
// TODO code application logic here
frame = new JFrame ("Transaction Options");
frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
EOptionsPanel panel = new EOptionsPanel();
frame.getContentPane().add (panel);
frame.pack();
frame.setVisible(true);
}
public static int getTransCode()
{
String codeStr;
int code;

2. codeStr=JOptionPane.showInputDialog(" Here are the Transaction
Codes: 1)Checking 2)Depositing 0)Terminate");
code = Integer.parseInt(codeStr);
return code;
}
public static double getTransAmount(){
String tStr;
double tAmount;
tStr = JOptionPane.showInputDialog("Enter the trans amount: ");
tAmount = Double.parseDouble(tStr);
return tAmount;
}
public static double processCheck(double tAmount)
{
CheckAcc.setServiceCharge(0.15);
newTrans = new Transaction(CheckAcc.getTransCount(),3,0.15);
CheckAcc.addTrans(newTrans);
message += " Transaction : Check in Amount of $" + fmt.format(tAmount) +
" Current Balance : $ " + fmt.format(CheckAcc.getBalance()) +
" Service Charge : Check --- charge: $0.15";
if(CheckAcc.getBalance()<500 && firstTime2)
{
CheckAcc.setServiceCharge(5.00);
newTrans = new Transaction(CheckAcc.getTransCount(),3,5.00);
CheckAcc.addTrans(newTrans);
firstTime2=false;
message += " Service Charge : Balance under $500 -- Charge: $5.00";
}
if(CheckAcc.getBalance()<0)
{
CheckAcc.setServiceCharge(10.00);
newTrans = new Transaction(CheckAcc.getTransCount(),3,10.00);
CheckAcc.addTrans(newTrans);

3. message += " Service Charge : Overdfart Balance --- Charge: $10.00";
}
message += " Total ServiceCharge : $ " + fmt.format(CheckAcc.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
return 0;
}
public static double processDeposit(double tAmount)
{
CheckAcc.setServiceCharge(0.10);
newTrans = new Transaction(CheckAcc.getTransCount(),3,0.10);
CheckAcc.addTrans(newTrans);
message += " Transaction : Deposit in Amount of $" + fmt.format(tAmount) +
" Current Balance : $ " + fmt.format(CheckAcc.getBalance()) +
" Service Charge : Check --- charge: $0.10"+
" Total ServiceCharge : $ " + fmt.format(CheckAcc.getServiceCharge());
JOptionPane.showMessageDialog(null, message);
return 0;
}
public static void inputTransactions()
{
// define local variables
String initialStr;
double initial, tAmount, check, deposit, amount=0;
int code, number=0, id=0;
// get initial balance from the user
if(firstTime)
{
initialStr = JOptionPane.showInputDialog ("Please enter the initial balance: ");
initial = Double.parseDouble (initialStr);
/*
instantiate CheckingAccount object
to keep track of account information

4. */
CheckAcc = new CheckingAccount (initial);
firstTime=false;
}
newTrans = new Transaction (number, id, amount);
frame.setVisible(false);
//Loop continues transactions until trans code = 0
do
{
message = "";
code = getTransCode();
if (code != 0) //initially checks that trans code != 0
{
tAmount = getTransAmount();
CheckAcc.setBalance(tAmount, code);
//creating a new Transaction object
newTrans = new Transaction (CheckAcc.getTransCount(), code, tAmount);
CheckAcc.addTrans(newTrans);//inputs the new object in the array
if (CheckAcc.getBalance() < 50)
message = "WARNING: Balance below $50";
if (code == 1)
{
check = processCheck(tAmount);
}
if (code == 2)
{
deposit = processDeposit(tAmount);
}
}
}

5. while (code != 0);
// When loop ends show final balance to user.
message += "*****************" + " Transaction End"
+ " *****************" + " Current Balance: " + fmt.format(CheckAcc.getBalance())
+ " Total Service Charges: " + fmt.format(CheckAcc.getServiceCharge())
+ " Final Balance: " + fmt.format(CheckAcc.getFinal());
JOptionPane.showMessageDialog(null, message);
frame.setVisible(true);
}
public static void listTransactions()
{
JTextArea text = new JTextArea();
String message = "";
int num;
text.setOpaque(false);
text.setFont(new Font("Monospaced", Font.PLAIN, 14) );
text.setBorder(null);
message+="All Transactions ";
message+="Number Type Amount($) ";
for ( num=0; num < CheckAcc.getTransCount(); num++)
{
String word = "";
newTrans = CheckAcc.getTrans(num);
System.out.println(newTrans.getTransId());
//Case switch to convert transID to a trans type (string)
switch (newTrans.getTransId())
{
case 1: word = "Check ";
break;
case 2: word = "Deposit ";
break;
case 3: word = "Service Charge";
}

6. message += String.format("%3d %10s %10s ",
newTrans.getTransNumber(), word, fmt.format(newTrans.getTransAmount()));
}
text.setText(message);
JOptionPane.showMessageDialog(null, text);
}
public static void listChecks()
{
JTextArea text = new JTextArea();
String message = "";
int num;
text.setOpaque(false);
text.setFont(new Font("Monospaced", Font.PLAIN, 14) );
text.setBorder(null);
message+="Checks Cashed ";
message+="Number Amount($) ";
for ( num=0; num < CheckAcc.getTransCount(); num++)
{
newTrans = CheckAcc.getTrans(num);
if (newTrans.getTransId() == 1)
{
message += String.format("%3d %10s ",
newTrans.getTransNumber(), fmt.format(newTrans.getTransAmount()));
}
}
text.setText(message);
JOptionPane.showMessageDialog(null, text);
}
public static void listDeposits()
{
JTextArea text = new JTextArea();
String message = "";
int num;
text.setOpaque(false);

7. text.setFont(new Font("Monospaced", Font.PLAIN, 14) );
text.setBorder(null);
message+="Deposits Made ";
message+="Number Amount($) ";
for ( num=0; num < CheckAcc.getTransCount(); num++)
{
newTrans = CheckAcc.getTrans(num);
if (newTrans.getTransId() == 2)
{
message += String.format("%3d %10s ",
newTrans.getTransNumber(), fmt.format(newTrans.getTransAmount()));
}
}
text.setText(message);
JOptionPane.showMessageDialog(null, text);
}
public static void listService_Charges()
{
JTextArea text = new JTextArea();
String message = "";
int num;
text.setOpaque(false);
text.setFont(new Font("Monospaced", Font.PLAIN, 14) );
text.setBorder(null);
message+="Service Charges ";
message+="Number Amount($) ";
for ( num=0; num < CheckAcc.getTransCount(); num++)
{
newTrans = CheckAcc.getTrans(num);
if (newTrans.getTransId() == 3)
{
message += String.format("%3d %10s ",
newTrans.getTransNumber(), fmt.format(newTrans.getTransAmount()));
}
}
text.setText(message);

8. JOptionPane.showMessageDialog(null, text);
}
}
//-----------------CheckingAccount.java-------------------------------
package assignment2.pkg1;
import java.util.ArrayList;
public class CheckingAccount
{
private ArrayList transList;// keeps a list of Transaction objects for the account
private int transCount; // the count of Transaction objects and used as the ID for each transaction
private double currentbalance;
private double totalServiceCharge;
private double finalbalance;
public CheckingAccount(double initial)
{
transList = new ArrayList();
currentbalance = initial;
totalServiceCharge = 0;
finalbalance = 0;
}
public double getBalance()
{
return currentbalance;
}
public void setBalance(double tAmount, int transCode)
{
if(transCode == 1)
currentbalance -= tAmount;
else //if(transCode == 2)
currentbalance += tAmount;
}
public double getServiceCharge()

9. {
return totalServiceCharge;
}
public void setServiceCharge(double currentServiceCharge)
{
totalServiceCharge += currentServiceCharge;
}
public double getFinal()
{
finalbalance = currentbalance - totalServiceCharge;
return finalbalance;
}
public void addTrans(Transaction newTrans)// adds a transaction object to the transList
{
transList.add(newTrans);
transCount ++;
}
public int getTransCount()//returns the current value of transCount;
{
return transCount;
}
public Transaction getTrans(int i)// returns the i-th Transaction object in the list
{
return transList.get(i);
}
}
//---------------------------------EOptionsPanel.java-------------------------------------------
package assignment2.pkg1;
import javax.swing.*;
import java.awt.*;

10. import java.awt.event.*;
import assignment2.pkg1.Assignment21;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.Color;
public class EOptionsPanel extends JPanel
{
private JLabel prompt;
private JRadioButton one, two, three, four, five;
//-----------------------------------------------------------------
// Sets up a panel with a label and a set of radio buttons
// that present options to the user.
//-----------------------------------------------------------------
public EOptionsPanel()
{
prompt = new JLabel ("Choose your input option:");
prompt.setFont (new Font ("Courier New", Font.BOLD, 24));
one = new JRadioButton ("Enter A Transaction");
one.setBackground (Color.red);
two = new JRadioButton ("List All Transactions");
two.setBackground (Color.GREEN);
three = new JRadioButton ("List All Checks");
three.setBackground (Color.Blue);
four = new JRadioButton ("List All Deposits");
four.setBackground (Color.yellow);
five= new JRadioButton ("List All Service Charges");
five.setBackground (Color.magenta);
ButtonGroup group = new ButtonGroup();
group.add (one);
group.add (two);

11. group.add (three);
group.add (four);
group.add (five);
EOptionListener listener = new EOptionListener();
one.addActionListener (listener);
two.addActionListener (listener);
three.addActionListener (listener);
four.addActionListener (listener);
five.addActionListener (listener);
// add the components to the JPanel
add (prompt);
add (one);
add (two);
add (three);
add (four);
add (five);
setBackground (Color.green);
setPreferredSize (new Dimension(400, 140));
}
//*****************************************************************
// Represents the listener for the radio buttons
//*****************************************************************
private class EOptionListener implements ActionListener
{
//--------------------------------------------------------------
// Calls the method to process the option for which radio
// button was pressed.
//--------------------------------------------------------------
public void actionPerformed (ActionEvent event)
{
Object source = event.getSource();
if (source == one)

12. Assignment21.inputTransactions();
else
if (source == two)
Assignment21.listTransactions();
else
if (source == three)
Assignment21.listChecks();
if (source == four)//list deposits
Assignment21.listDeposits();
if (source == five)
Assignment21.listService_Charges();
}
}
}
//------------------------------Transaction.java-----------------------------------
package assignment2.pkg1;
public class Transaction {
private int transNumber;
private int transId;
private double tAmount;
public Transaction(int number, int id, double amount)
{
transNumber = number;
transId = id;
tAmount = amount;
}
public int getTransNumber()
{
return transNumber;
}

13. public int getTransId()
{
return transId;
}
public double getTransAmount()
{
return tAmount;
}
}