java

Hi Friend,

Try the following code:

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

class openTest extends JFrame{
private JPanel panel2,p1,p2;
private JLabel lab,lab1;
private JLabel l[]=new JLabel [4];
private GridLayout gridLayout1;
private JTextField t[]=new JTextField [4];
private JTabbedPane pane;
private Font boldFont;
private Font boldItalicFont;
private JButton submit;
private JButton but,but1;
BankAccount b;
public openTest(){
super("Savings Account Application Form");
panel2=new JPanel();
p1=new JPanel(new GridLayout(5,2));
p2=new JPanel();
pane=new JTabbedPane();
lab=new JLabel(" ");
lab1=new JLabel(" ");
but=new JButton("Create Account");
but1=new JButton("Test Account");
p2.add(lab1);
p2.add(lab);
l[0]=new JLabel("Enter Your Account Number");
l[1]=new JLabel("Enter Your Initial Balance");
l[2]=new JLabel("Deposit Amount");
l[3]=new JLabel("Withdraw Amount");
for(int i=0;i<4;i++){
t[i]=new JTextField(10);
p1.add(l[i]);
p1.add(t[i]);
}
p1.add(but);
p1.add(but1);
but1.setVisible(false);
l[2].setVisible(false);
l[3].setVisible(false);
t[2].setVisible(false);
t[3].setVisible(false);
panel2.add(p1);
panel2.add(p2);
but.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String des=JOptionPane.showInputDialog(null,"Deposit or Withdraw");
if(des.equals("Deposit")){
b=new BankAccount(Integer.parseInt(t[0].getText()),Integer.parseInt(t[1].getText()));
but1.setVisible(true);
l[2].setVisible(true);
l[3].setVisible(false);
t[2].setVisible(true);
t[3].setVisible(false);
but.setVisible(false);
l[0].setVisible(false);
l[1].setVisible(false);
t[0].setVisible(false);
t[1].setVisible(false);
lab1.setText("Account : "+b.accnum+", Current Balance : "+b.amount);
but1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
lab.setText(testAccount1(Integer.parseInt(t[2].getText())));
lab1.setText("Account : "+b.accnum+", Current Balance : "+b.amount);
}
});
}
else if(des.equals("Withdraw")){
b=new BankAccount(Integer.parseInt(t[0].getText()),Integer.parseInt(t[1].getText()));
but1.setVisible(true);
l[2].setVisible(false);
l[3].setVisible(true);
t[2].setVisible(false);
t[3].setVisible(true);
but.setVisible(false);
l[0].setVisible(false);
l[1].setVisible(false);
t[0].setVisible(false);
t[1].setVisible(false);
lab1.setText("Account : "+b.accnum+", Current Balance : "+b.amount);
but1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
lab.setText(testAccount2(Integer.parseInt(t[3].getText())));
lab1.setText("Account : "+b.accnum+", Current Balance : "+b.amount);
}
});
}
}
});
pane.addTab("Deposit/Withdrawl",panel2);

add(pane);
}
String testAccount1(int d_amt){
String msg;
b.deposit(d_amt);
msg="Transaction Succesful";
return msg;
}

continue..

String testAccount2(int w_amt){
String msg;
msg="Transaction Succesful";
try{
b.withdraw(w_amt);
}catch(FundsInsufficientException fe){
fe=new FundsInsufficientException(b.amount,w_amt);
msg=String.valueOf(fe);
}
return msg;
}

}
public class BankRecord{
public static void main(String[] args){
openTest savings =new openTest();
savings.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
savings.setSize(450,380);
savings.setVisible(true);
}
}
class BankAccount{
int accnum;
int amount;
BankAccount(int num,int amt){
accnum=num;
amount=amt;
}
public void deposit(int amt){
amount=amount+amt;
}
public void withdraw(int amt) throws FundsInsufficientException{
if(amt>amount)
throw new FundsInsufficientException(amount,amt);
else
amount=amount-amt;
}
}
class FundsInsufficientException extends Exception{
int balance;
int withdraw_amount;
FundsInsufficientException(int bal,int w_amt){
balance=bal;
withdraw_amount=w_amt;
}
public String toString(){
return "Your withdraw amount ("+withdraw_amount+") is more than the balance ("+balance+"). No withdrawal was recorded.";
}
}

Hope that it will be helpful for you.
Thanks