Code: Select all
// SavingsAccount.java
import java.awt.*; //Container, FlowLayout
import java.awt.event.*; //ActionEvent, ActionListener
import javax.swing.*; //JApplet, JButton, JLabel, JTextField
public class SavingsAccount extends JApplet implements ActionListener {
// variables for GUI
String name; //variable to hold account name from accountNameField
float startingBalance; //variable to hold account balance from sBalanceField
float currentBalance; //variable to hold account balance from cBalanceField
float transactionAmount;//variable to hold transaction amount from transactionfield
static int transaction = 0; //variable to hold # of transactions
// graphical user interface components
//labels to identify fields
JLabel accountName, sBalance, transaction1, cBalance;
//strings for the labels
private static String accountNameString = "Enter Account Name";
private static String startingBalanceString = "Enter Starting Balance";
private static String transactionAmountString = "Enter Transaction Amount";
private static String currentBalanceString = "Current Balance";
JTextField accountNameField, sBalanceField, transactionField, cBalanceField;
JButton createAccountButton, processTransactionButton, quitButton;
// set up GUI components
public void init()
{
//obtain content pane and change its layout to FlowLayout
Container container = getContentPane();
container.setLayout( new FlowLayout());
//create label and text field for Account Name
accountName = new JLabel (accountNameString);
container.add( accountName );
accountNameField = new JTextField ( 10 );
accountNameField.setEditable( true );
container.add( accountNameField );
//create label and text field for Starting Balance
sBalance = new JLabel (startingBalanceString);
container.add( sBalance );
sBalanceField = new JTextField ( 10 );
sBalanceField.setEditable( true );
container.add( sBalanceField );
//create label and text field for Transaction Amount
transaction1 = new JLabel (transactionAmountString);
container.add( transaction1 );
transactionField = new JTextField ( 10 );
transactionField.setEditable( true );
container.add( transactionField );
//create label and text field for Current Balance
cBalance = new JLabel (currentBalanceString);
container.add( cBalance );
cBalanceField = new JTextField ( 10 );
cBalanceField.setEditable( false );
container.add( cBalanceField );
//create button user clicks to create account
createAccountButton = new JButton( "Create Account" );
createAccountButton.addActionListener( this );
container.add( createAccountButton );
//create button user clicks to process tranaction
processTransactionButton = new JButton( "Process Transaction" );
processTransactionButton.addActionListener( this );
container.add( processTransactionButton );
//create button user clicks to quit
quitButton = new JButton( "Quit" );
quitButton.addActionListener( this );
container.add( quitButton );
}//end method init
//process button clicks
public void actionPerformed( ActionEvent e )
{
if (e.getSource() == quitButton)
{
quit();
}
else if(e.getSource() == processTransactionButton)
{
processTransaction();
}
else if(e.getSource() ==createAccountButton)
{
createAccount();
}
//here is where the three actions should be implemented for Create and Process and Quit
}//end method actionPerformed
// keeps track of transactions performed and protects agains Overdrafts
public void processTransaction()
{
if (currentBalance < 0 )
{
showStatus( "OverDraft, please try again" );
}
else if (currentBalance > 0)
{
currentBalance = startingBalance + transactionAmount;
cBalanceField.setText(Float.toString(currentBalance));
SavingsAccount.transaction++;
}
transactionField.setText("");
}// end method processTransaction
//method to Create Account
public void createAccount()
{
name = accountNameField.getText();
String newStartingBalance = Float.toString(startingBalance) ;
newStartingBalance = sBalanceField.getText();
accountNameField.setText(name);
sBalanceField.setText(newStartingBalance);
accountNameField.setEditable(false);
sBalanceField.setEditable(false);
showStatus( "Account Created" );
} // end method createAccount()
public void quit()
{
showStatus( "Bye " + name + " you had " + transaction + " transactions" );
//need to figure out how to add variables in output string
accountNameField.setText("");
sBalanceField.setText("");
cBalanceField.setText("");
accountNameField.setEditable(true);
sBalanceField.setEditable(true);
}
}//end class SavingsAccount
