In this assignment, the overall task is to develop an application that records s

ID: 3705312 • Letter: I

Question

In this assignment, the overall task is to develop an application that records sales and handle payments in a retail store. Study the POS Project Requirements below. You are recommended to use a GUI for your application. A cashier will be asked to log in the system using his/her user id and password. (There are no limits on the maximum tries of incorrect passwords or users). The system logs in the cashier if proper credentials are provided otherwise a message is displayed to reenter the credentials. (If the user id or password is wrong, the cashier will be asked to re-enter as follows). In this assignment, the overall task is to develop an application that records sales and handle payments in a retail store. Study the POS Project Requirements below. You are recommended to use a GUI for your application. A cashier will be asked to log in the system using his/her user id and password. (There are no limits on the maximum tries of incorrect passwords or users). The system logs in the cashier if proper credentials are provided otherwise a message is displayed to reenter the credentials. (If the user id or password is wrong, the cashier will be asked to re-enter as follows). A Simple Point-of-Sale (POS) Systemm 1. OBJECTIVE The objective of this assignment is to get you familiar with all (mostly) Java basics and some advance concepts, which include the syntax, Java input/output, arrays, lists, classes, objects, inheritance and interfaces utilizing polymorphism. After performing this assignment, you should be able to master these Java concepts. You need to use Eclipse for this assignment. 2. TASK In this assignment, the overall task is to develop an application that records sales and handle payments in a retail store. Study the POS Project Requirements below. You are recommended to use a GUI for your application. A cashier will be asked to log in the system using his/her user id and password. (There are no limits on the maximum tries of incorrect passwords or users). The system logs in the cashier if proper credentials are provided otherwise a message is displayed to reenter the credentials. (If the user id or password is wrong, the cashier will be asked to re-enter as follows) Welcome to the Point-Of-Sale Registration System Password Remembe Log in Please enter your user name: alinaqvi Please enter your password: thisismypassword

Explanation / Answer

//Login.java

it is the starting point the application

Username: abc

Password:123

import javax.swing.JOptionPane;

/**
*
* @author Prashant Tomer
*/
public class Login extends javax.swing.JFrame {

/**
* Creates new form Login
*/
public Login() {
initComponents();
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jPasswordField1 = new javax.swing.JPasswordField();

jLabel1.setText("jLabel1");

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel2.setText("UserName");

jLabel3.setText("Password");

jTextField1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField1ActionPerformed(evt);
}
});

jButton1.setText("Login");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Cancel");

pack();
}// </editor-fold>

private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
Inventory obj=new Inventory();

System.out.println(jTextField1.getText());
System.out.println(jPasswordField1.getPassword());
if(jTextField1.getText().equals("abc") | jPasswordField1.getPassword().equals("123"))
{
obj.go();
}

else
{
JOptionPane.showMessageDialog(null,"UserName/Password is incorrect");
}
// TODO add your handling code here:
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Login().setVisible(true);
}
});
}

//Inventory.java

/**
*
* @author Prashant Tomer
*/
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

import java.awt.*;
import java.awt.event.*;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class Inventory extends javax.swing.JFrame implements ActionListener {

JFrame frame;
JMenuBar mb;
JMenu mn1,mn2,mn3;
JMenuItem item1,item2;
JButton b1;
public void go()
{
frame=new JFrame("menubar");

mb=new JMenuBar();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
b1=new JButton("Hello");
mn1=new JMenu("Start");
mn2=new JMenu("Delete");
//mn3=new JMenu("Open");
item1=new JMenuItem("new sale");
item2=new JMenuItem("items");
//item3=new JMenuItem("load");
item1.addActionListener(this);
item2.addActionListener(this);

mb.add(mn1);
mb.add(mn2);
//mb.add(mn3);
mn1.add(item1);
mn2.add(item2);
//mn1.add(item3);
frame.setJMenuBar(mb);
frame.add(b1,BorderLayout.CENTER);
//UseAnimation1 obj=new UseAnimation1();

frame.setSize(300,300);
frame.setVisible(true);

}




// public static void main(String aa[])
//{
//Inventory obj=new Inventory();
//obj.go();
//}

@Override

public void actionPerformed(ActionEvent e)
{
if(e.getSource()==item1)
{

ItemPurchase purchase=new ItemPurchase();
purchase.setVisible(true);
// JFrame myframe=new JFrame("start");
// myframe.setSize(300,300);
//myframe.setVisible(true);
}

else if(e.getSource()==item2)
{
JFrame myframe=new JFrame("Details");
myframe.setSize(300,300);
myframe.setVisible(true);
}
//frame.setVisible(false);
}

}

//ItemPurchase.java

/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package cheggswing.Inventory;
import java.util.*;
/**
*
* @author Prashant Tomer
*/
public class ItemPurchase extends javax.swing.JFrame {

/**
* Creates new form ItemPurchase
*/
public ItemPurchase() {
initComponents();
}

jLabel3 = new javax.swing.JLabel();
jLabel6 = new javax.swing.JLabel();
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jTextField2 = new javax.swing.JTextField();
jLabel5 = new javax.swing.JLabel();
jTextField3 = new javax.swing.JTextField();
jTextField4 = new javax.swing.JTextField();
jLabel7 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();

jLabel3.setText("jLabel3");

jLabel6.setText("jLabel6");

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jLabel1.setText("Sales Point Form");

jLabel2.setText("Itemit");

jLabel4.setText("Itemname");

jTextField2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextField2ActionPerformed(evt);
}
});

jLabel5.setText("Customer Name");

jLabel7.setText("Price");

jButton1.setText("Add to database");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});

jButton2.setText("Cancel");

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(80, 80, 80)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel2)
.addComponent(jLabel4)
.addComponent(jLabel5)
.addComponent(jLabel7))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jTextField4, javax.swing.GroupLayout.DEFAULT_SIZE, 144, Short.MAX_VALUE)
.addComponent(jTextField3)
.addComponent(jTextField2)
.addComponent(jTextField1))
.addGap(68, 68, 68))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(148, 148, 148)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(125, 125, 125)
.addComponent(jButton1)
.addGap(18, 18, 18)
.addComponent(jButton2)))
.addContainerGap(79, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(24, 24, 24)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel2))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel4)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel5)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(26, 26, 26)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextField4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1)
.addComponent(jButton2))
.addContainerGap(41, Short.MAX_VALUE))
);

pack();
}// </editor-fold>

private void jTextField2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

ArrayList<String> items=new ArrayList();
Map <String,List<String>>records=new TreeMap();

items.add(jTextField1.getText());
items.add(jTextField2.getText());
items.add(jTextField3.getText());
items.add(jTextField4.getText());
records.put(jTextField1.getText(), items);

jTextField1.setText("");

jTextField2.setText("");

jTextField3.setText("");

jTextField4.setText("");
// TODO add your handling code here:
}

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(ItemPurchase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(ItemPurchase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(ItemPurchase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(ItemPurchase.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
//new ItemPurchase().setVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
private javax.swing.JTextField jTextField4;
// End of variables declaration
}

//PurchasedItem.java

import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

/**
*
* @author Prashant Tomer
*/
public class PurchasedItem extends javax.swing.JFrame {

/**
* Creates new form PurchasedItem
*/
public PurchasedItem() {
initComponents();

}

jScrollPane1 = new javax.swing.JScrollPane();
jList1 = new javax.swing.JList<>();
jScrollPane4 = new javax.swing.JScrollPane();
jTable3 = new javax.swing.JTable();

jList1.setModel(new javax.swing.AbstractListModel<String>() {
String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
public int getSize() { return strings.length; }
public String getElementAt(int i) { return strings[i]; }
});
jScrollPane1.setViewportView(jList1);

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jTable3.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane4.setViewportView(jTable3);

pack();
}// </editor-fold>

/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(PurchasedItem.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(PurchasedItem.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(PurchasedItem.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(PurchasedItem.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new PurchasedItem().setVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JList<String> jList1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JScrollPane jScrollPane4;
private javax.swing.JTable jTable3;
// End of variables declaration
}

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