Java-Programs/Atm.java at main · CodeWithNehaGeorge/Java-Programs · GitHub

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importjava.io.*;
importjavax.swing.*;
importjava.util.*;
importjava.awt.event.*;

classAtmextendsJFrameimplementsActionListener {
JButtonwithdraw, deposit, balance;
JLabelwith, dep, bal, heading, accno;
JTextFieldw, d, b, a;

Atm() {
super("ATM APPLICATION");

this.withdraw = newJButton("WITHDRAW");
this.deposit = newJButton("DEPOSIT");
this.balance = newJButton("BALANCE");

this.with = newJLabel("WITHDRAW AMOUNT");
this.dep = newJLabel("DEPOSIT AMOUNT");
this.accno = newJLabel("ACCOUNT NUMBER");
this.bal = newJLabel("BALANCE");
this.heading = newJLabel("ATM");

this.w = newJTextField(10);
this.d = newJTextField(10);
this.b = newJTextField(10);
this.a = newJTextField(10);

this.add(this.withdraw);
this.add(this.deposit);
this.add(this.balance);
this.add(this.with);
this.add(this.dep);
this.add(this.accno);
this.add(this.bal);
this.add(this.heading);
this.add(this.w);
this.add(this.d);
this.add(this.b);
this.add(this.a);
this.setLayout(null);

this.heading.setBounds(20, 50, 150, 20);
this.accno.setBounds(20, 70, 150, 20);
this.a.setBounds(20, 90, 150, 20);
this.bal.setBounds(20, 110, 150, 20);
this.b.setBounds(20, 130, 150, 20);
this.dep.setBounds(20, 150, 150, 20);
this.d.setBounds(20, 170, 150, 20);
this.with.setBounds(20, 190, 150, 20);
this.w.setBounds(20, 210, 150, 20);
this.withdraw.setBounds(200, 150, 150, 50);
this.deposit.setBounds(350, 150, 150, 50);
this.balance.setBounds(500, 150, 150, 50);

this.setVisible(true);
this.setSize(500, 300);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);

this.withdraw.addActionListener(this);
this.deposit.addActionListener(this);
this.balance.addActionListener(this);

 }

publicvoidactionPerformed(ActionEventae) {
Stringno;
doublebal = 0, amt;
Strings = ae.getActionCommand();
try {
if ((s.equals("DEPOSIT")) == true) {
no = this.a.getText();
FileReaderfin = newFileReader(no + ".txt");
amt = Double.parseDouble(this.d.getText());
Scannerfscan = newScanner(fin);
if ((fscan.hasNextDouble()) == true) {
bal = fscan.nextDouble();
 }
bal = bal + amt;
this.b.setText(Double.toString(bal));
fin.close();
FileWriterfout = newFileWriter(no + ".txt");
fout.write(Double.toString(bal));
fout.close();
 } elseif ((s.equals("WITHDRAW")) == true) {
no = this.a.getText();
FileReaderfin = newFileReader(no + ".txt");
amt = Double.parseDouble(this.w.getText());
Scannerfscan = newScanner(fin);
if ((fscan.hasNextDouble()) == true) {
bal = fscan.nextDouble();
 }
if (bal < amt) {
thrownewException("INSUFFICIENT BALANCE");
 }
bal = bal - amt;

this.b.setText(Double.toString(bal));
fin.close();
FileWriterfout = newFileWriter(no + ".txt");
fout.write(Double.toString(bal));
fout.close();
 } elseif ((s.equals("BALANCE")) == true) {
no = this.a.getText();
FileReaderfin = newFileReader(no + ".txt");
Scannerfscan = newScanner(fin);
if ((fscan.hasNextDouble()) == true) {
bal = fscan.nextDouble();
 }
this.b.setText(Double.toString(bal));
fin.close();
 }
 } catch (FileNotFoundExceptione) {
this.accno.setText("INVALID ACCNO");
 } catch (IOExceptione) {
System.out.println("Exception:" + e);
 } catch (Exceptione) {
this.b.setText("INSUFFICIENT BALANCE");
 }
 }

publicstaticvoidmain(Stringargs[]) {
Atma1 = newAtm();
 }

}