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NewAccount.java
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NewAccount.java
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
public class NewAccount extends JInternalFrame implements ActionListener {
private JPanel jpInfo = new JPanel();
private JLabel lbNo, lbName, lbDate, lbDeposit;
private JTextField txtNo, txtName, txtDeposit;
private JComboBox cboMonth, cboDay, cboYear;
private JButton btnSave, btnCancel;
private int count = 0;
private int rows = 0;
private int total = 0;
//String Type Array use to Load Records From File.
private String records[][] = new String [500][6];
//String Type Array use to Save Records into File.
private String saves[][] = new String [500][6];
private FileInputStream fis;
private DataInputStream dis;
NewAccount () {
// super(Title, Resizable, Closable, Maximizable, Iconifiable)
super ("Create New Account", false, true,true, true);
setSize (335, 235);
jpInfo.setBounds (0, 0, 500, 115);
jpInfo.setLayout (null);
lbNo = new JLabel ("Account No:");
lbNo.setForeground (Color.black);
lbNo.setBounds (15, 20, 80, 25);
lbName = new JLabel ("Person Name:");
lbName.setForeground (Color.black);
lbName.setBounds (15, 55, 80, 25);
lbDate = new JLabel ("Deposit Date:");
lbDate.setForeground (Color.black);
lbDate.setBounds (15, 90, 80, 25);
lbDeposit = new JLabel ("Dep. Amount:");
lbDeposit.setForeground (Color.black);
lbDeposit.setBounds (15, 125, 80, 25);
txtNo = new JTextField ();
txtNo.setHorizontalAlignment (JTextField.RIGHT);
txtNo.setBounds (105, 20, 205, 25);
txtName = new JTextField ();
txtName.setBounds (105, 55, 205, 25);
txtDeposit = new JTextField ();
txtDeposit.setHorizontalAlignment (JTextField.RIGHT);
txtDeposit.setBounds (105, 125, 205, 25);
//Restricting The User Input to only Numerics in Numeric TextBoxes.
txtNo.addKeyListener (new KeyAdapter() {
public void keyTyped (KeyEvent ke) {
char c = ke.getKeyChar ();
if (!((Character.isDigit (c) || (c == KeyEvent.VK_BACK_SPACE)))) {
getToolkit().beep ();
ke.consume ();
}
}
}
);
txtDeposit.addKeyListener (new KeyAdapter() {
public void keyTyped (KeyEvent ke) {
char c = ke.getKeyChar ();
if (!((Character.isDigit (c) || (c == KeyEvent.VK_BACK_SPACE)))) {
getToolkit().beep ();
ke.consume ();
}
}
}
);
//Creating Date Option.
String Months[] = {"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"};
cboMonth = new JComboBox (Months);
cboDay = new JComboBox ();
cboYear = new JComboBox ();
for (int i = 1; i <= 31; i++) {
String days = "" + i;
cboDay.addItem (days);
}
for (int i = 2000; i <= 2015; i++) {
String years = "" + i;
cboYear.addItem (years);
}
//Aligning The Date Option Controls.
cboMonth.setBounds (105, 90, 92, 25);
cboDay.setBounds (202, 90, 43, 25);
cboYear.setBounds (250, 90, 60, 25);
//Aligning The Buttons.
btnSave = new JButton ("Save");
btnSave.setBounds (20, 165, 120, 25);
btnSave.addActionListener (this);
btnCancel = new JButton ("Cancel");
btnCancel.setBounds (185, 165, 120, 25);
btnCancel.addActionListener (this);
//Adding the All the Controls to Panel.
jpInfo.add (lbNo);
jpInfo.add (txtNo);
jpInfo.add (lbName);
jpInfo.add (txtName);
jpInfo.add (lbDate);
jpInfo.add (cboMonth);
jpInfo.add (cboDay);
jpInfo.add (cboYear);
jpInfo.add (lbDeposit);
jpInfo.add (txtDeposit);
jpInfo.add (btnSave);
jpInfo.add (btnCancel);
//Adding Panel to Window.
getContentPane().add (jpInfo);
//In the End Showing the New Account Window.
setVisible (true);
}
//Function use By Buttons of Window to Perform Action as User Click Them.
public void actionPerformed (ActionEvent ae) {
Object obj = ae.getSource();
if (obj == btnSave) {
if (txtNo.getText().equals("")) {
JOptionPane.showMessageDialog (this, "Please! Provide Id of Customer.",
"BankSystem - EmptyField", JOptionPane.PLAIN_MESSAGE);
txtNo.requestFocus();
}
else if (txtName.getText().equals("")) {
JOptionPane.showMessageDialog (this, "Please! Provide Name of Customer.",
"BankSystem - EmptyField", JOptionPane.PLAIN_MESSAGE);
txtName.requestFocus ();
}
else if (txtDeposit.getText().equals("")) {
JOptionPane.showMessageDialog (this, "Please! Provide Deposit Amount.",
"BankSystem - EmptyField", JOptionPane.PLAIN_MESSAGE);
txtDeposit.requestFocus ();
}
else {
populateArray (); //Load All Existing Records in Memory.
findRec (); //Finding if Account No. Already Exist or Not.
}
}
if (obj == btnCancel) {
txtClear ();
setVisible (false);
dispose();
}
}
//Function use to load all Records from File when Application Execute.
void populateArray () {
try {
fis = new FileInputStream ("Bank.dat");
dis = new DataInputStream (fis);
//Loop to Populate the Array.
while (true) {
for (int i = 0; i < 6; i++) {
records[rows][i] = dis.readUTF ();
}
rows++;
}
}
catch (Exception ex) {
total = rows;
if (total == 0) { }
else {
try {
dis.close();
fis.close();
}
catch (Exception exp) { }
}
}
}
//Function use to Find Record by Matching the Contents of Records Array with ID TextBox.
void findRec () {
boolean found = false;
for (int x = 0; x < total; x++) {
if (records[x][0].equals (txtNo.getText())) {
found = true;
JOptionPane.showMessageDialog (this, "Account No. " + txtNo.getText () + " is Already Exist.",
"BankSystem - WrongNo", JOptionPane.PLAIN_MESSAGE);
txtClear ();
break;
}
}
if (found == false) {
saveArray ();
}
}
//Function use to add new Element to Array.
void saveArray () {
saves[count][0] = txtNo.getText ();
saves[count][1] = txtName.getText ();
saves[count][2] = "" + cboMonth.getSelectedItem ();
saves[count][3] = "" + cboDay.getSelectedItem ();
saves[count][4] = "" + cboYear.getSelectedItem ();
saves[count][5] = txtDeposit.getText ();
saveFile (); //Save This Array to File.
count++;
}
//Function use to Save new Record to the File.
void saveFile () {
try {
FileOutputStream fos = new FileOutputStream ("Bank.dat", true);
DataOutputStream dos = new DataOutputStream (fos);
dos.writeUTF (saves[count][0]);
dos.writeUTF (saves[count][1]);
dos.writeUTF (saves[count][2]);
dos.writeUTF (saves[count][3]);
dos.writeUTF (saves[count][4]);
dos.writeUTF (saves[count][5]);
JOptionPane.showMessageDialog (this, "The Record has been Saved Successfully",
"BankSystem - Record Saved", JOptionPane.PLAIN_MESSAGE);
txtClear ();
dos.close();
fos.close();
}
catch (IOException ioe) {
JOptionPane.showMessageDialog (this, "There are Some Problem with File",
"BankSystem - Problem", JOptionPane.PLAIN_MESSAGE);
}
}
//Function use to Clear all TextFields of Window.
void txtClear () {
txtNo.setText ("");
txtName.setText ("");
txtDeposit.setText ("");
txtNo.requestFocus ();
}
}