Completed Project

src/AddBook.java

@@ -3,13 +3,14 @@
 import java.awt.event.*;
 
 public class AddBook extends JFrame implements ActionListener {
+    Library lib = Library.getInstance();
     JButton backDash;
     JButton add;
     TextField title;
     TextField author;
     TextField quantity;
     TextField description;
-
+    
     AddBook(){
         super("Dashboard");
         setLayout(new GridLayout(5,2,8,8));
@@ -66,16 +67,28 @@ public void actionPerformed(ActionEvent e) {
             dispose();
         }
         if(e.getSource() == add){
+            if(title.getText().equals("") || author.getText().equals("") || quantity.getText().equals("") || description.getText().equals("")){
+                new AddBookFailure();
+                return;
+            }
             String title = this.title.getText();
             String author = this.author.getText();
+            try{
+                Integer.parseInt(this.quantity.getText());
+            }catch(NumberFormatException nfe){
+                new AddBookFailure();
+                this.quantity.setText("");
+                return;
+            }
             int quantity = Integer.parseInt(this.quantity.getText());
             String description = this.description.getText();
             Book book = new Book(title, author, quantity, description);
-            new Dashboard();
-            dispose();
+            lib.insert(book);
+            new AddBookSuccess();
+            this.title.setText("");
+            this.author.setText("");
+            this.quantity.setText("");
+            this.description.setText("");
         }
     }
-    public static void main(String[] args) {
-        new AddBook();
-    }
 }

src/AddBookFailure.java

@@ -0,0 +1,34 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class AddBookFailure extends JFrame implements ActionListener{
+    JButton okButton;
+    public AddBookFailure(){
+        super("Failure to add book");
+        setLayout(new GridLayout(2,1,8,8));
+        setSize(300, 600);
+        Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
+
+        JLabel failLabel = new JLabel("Please fill all the fields correctly");
+        failLabel.setFont(fontRegular);
+
+        okButton = new JButton("OK");
+        okButton.addActionListener(this);
+        okButton.setFont(fontRegular);
+
+        add(failLabel);
+        add(okButton);
+
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        pack();
+        setResizable(true);
+        setVisible(true);
+    }
+    public void actionPerformed(ActionEvent e){
+        if(e.getSource() == okButton){
+            dispose();
+        }
+    }
+
+}

src/AddBookSuccess.java

@@ -0,0 +1,33 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class AddBookSuccess extends JFrame implements ActionListener{
+    JButton okButton;
+    public AddBookSuccess(){
+        super("Success");
+        setLayout(new GridLayout(2,1,8,8));
+        setSize(300, 600);
+        Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
+
+        JLabel failLabel = new JLabel("Book added successfully");
+        failLabel.setFont(fontRegular);
+
+        okButton = new JButton("OK");
+        okButton.addActionListener(this);
+        okButton.setFont(fontRegular);
+
+        add(failLabel);
+        add(okButton);
+
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        pack();
+        setResizable(true);
+        setVisible(true);
+    }
+    public void actionPerformed(ActionEvent e){
+        if(e.getSource() == okButton){
+            dispose();
+        }
+    }
+}

src/App.java

@@ -1,6 +1,5 @@
 public class App {
-    public static Library lib = new Library();
-    public static void main(String[] args) throws Exception {
+    public static void main(String[] args) {
         new Login();
     }
-}
+}

src/Authenticate.java

@@ -1,11 +1,11 @@
-import java.util.HashMap;
+import java.util.*;
 public class Authenticate {
     HashMap<String, String> userDatabase = new HashMap<>();
 
     boolean Check(String enteredUsername, String enteredPassword) {
-        userDatabase.put("rhythm", "077");
-        userDatabase.put("zayaan", "058");
-        userDatabase.put("nilansh", "069");
+        userDatabase.put("Rhythm", "077");
+        userDatabase.put("Zayaan", "058");
+        userDatabase.put("Nilansh", "069");
 
         if (userDatabase.containsKey(enteredUsername)) {
             String storedPassword = userDatabase.get(enteredUsername);

src/Dashboard.java

@@ -6,8 +6,7 @@ public class Dashboard extends JFrame implements ActionListener {
     JLabel welcomeLabel;
     JButton addBook;
     JButton searchBook;
-    JButton issueBook;
-    JButton returnBook;
+    JButton logOutButton;
 
     public Dashboard() {
         super("Dashboard");
@@ -22,14 +21,14 @@ public Dashboard() {
         searchBook = new JButton("Search Book");
         searchBook.addActionListener(this);
         searchBook.setFont(new Font("Segoe UI", Font.PLAIN, 20));
-        issueBook = new JButton("Issue Book");
-        issueBook.setFont(new Font("Segoe UI", Font.PLAIN, 20));
-        issueBook.addActionListener(this);
+        logOutButton = new JButton("Log Out");
+        logOutButton.addActionListener(this);
+        logOutButton.setFont(new Font("Segoe UI", Font.PLAIN, 20));
 
         add(welcomeLabel);
         add(addBook);
         add(searchBook);
-        add(issueBook);
+        add(logOutButton);
 
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         pack();
@@ -42,5 +41,13 @@ public void actionPerformed(ActionEvent e) {
             new AddBook();
             dispose();
         }
+        if (e.getSource() == searchBook) {
+            new SearchBook();
+            dispose();
+        }
+        if(e.getSource() == logOutButton){
+            new Login();
+            dispose();
+        }
     }
-}
+}

src/IssueFailure.java

@@ -0,0 +1,33 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class IssueFailure extends JFrame implements ActionListener{
+    JButton okButton;
+    public IssueFailure(){
+        super("Failure to issue book");
+        setLayout(new GridLayout(2,1,8,8));
+        setSize(300, 600);
+        Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
+
+        JLabel failLabel = new JLabel("Book not available");
+        failLabel.setFont(fontRegular);
+
+        okButton = new JButton("OK");
+        okButton.addActionListener(this);
+        okButton.setFont(fontRegular);
+
+        add(failLabel);
+        add(okButton);
+
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        pack();
+        setResizable(true);
+        setVisible(true);
+    }
+    public void actionPerformed(ActionEvent e){
+        if(e.getSource() == okButton){
+            dispose();
+        }
+    }
+}

src/IssueSuccess.java

@@ -0,0 +1,33 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class IssueSuccess extends JFrame implements ActionListener{
+    JButton okButton;
+    public IssueSuccess(){
+        super("Success");
+        setLayout(new GridLayout(2,1,8,8));
+        setSize(300, 600);
+        Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
+
+        JLabel failLabel = new JLabel("Book issued successfully");
+        failLabel.setFont(fontRegular);
+
+        okButton = new JButton("OK");
+        okButton.addActionListener(this);
+        okButton.setFont(fontRegular);
+
+        add(failLabel);
+        add(okButton);
+
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        pack();
+        setResizable(true);
+        setVisible(true);
+    }
+    public void actionPerformed(ActionEvent e){
+        if(e.getSource() == okButton){
+            dispose();
+        }
+    }
+}

src/Library.java

@@ -1,11 +1,18 @@
-import java.io.*;
-public class Library implements Serializable {
+public class Library{
+    private static Library instance;
     private TreeNode root;
 
-    public Library() {
+    private Library() {
         root = null;
     }
 
+    public static Library getInstance() {
+        if (instance == null) {
+            instance = new Library();
+        }
+        return instance;
+    }
+
     public void insert(Book book) {
         root = insertNode(root, book);
     }

src/Login.java

@@ -6,13 +6,12 @@ public class Login extends JFrame implements ActionListener {
     public static String username;
     JButton loginButton1;
     JButton loginButton2;
+    JButton quitButton;
     JTextField userText;
     JTextField passText;
-    JTextField adminText;
-    JTextField pass2Text;
     public Login(){
         super("Login");
-        setLayout(new GridLayout(3,1,8,8));
+        setLayout(new GridLayout(4,1,8,8));
         setSize(400, 300);
 
         Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
@@ -44,24 +43,14 @@ public Login(){
         loginButton1.setFont(fontRegular);
         loginButton1.addActionListener(this);
 
-        JPanel loginPanel2 = new JPanel();
-        loginPanel2.setLayout(new GridLayout(2, 2, 8, 8));
-        JLabel adminLabel = new JLabel("Username: ");
-        adminLabel.setFont(fontRegular);
-        adminText = new JTextField("");
-        adminText.setFont(fontRegular);
-        JLabel pass2Label = new JLabel("Password: ");
-        pass2Label.setFont(fontRegular);
-        pass2Text = new JTextField("");
-        pass2Text.setFont(fontRegular);
-
-        loginButton2 = new JButton("Login");
-        loginButton2.addActionListener(this);
-        loginButton2.setFont(fontRegular);
+        quitButton = new JButton("Quit");
+        quitButton.addActionListener(this);
+        quitButton.setFont(fontRegular);
 
         add(titlePanel1);
         add(loginPanel1);
         add(loginButton1);
+        add(quitButton);
 
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         pack();
@@ -91,15 +80,8 @@ public void actionPerformed(ActionEvent e) {
                 new LoginFailure();
             }
         }
-        if(e.getSource() == loginButton2){
-            try{
-                @SuppressWarnings("unused")
-                String user = adminText.getText(); 
-                @SuppressWarnings("unused")
-                String pass = passText.getText();
-            }catch(NullPointerException npe){
-                new LoginFailure();
-            }
+        if(e.getSource() == quitButton){
+            dispose();
         }
     }
 }

src/LoginFailure.java

@@ -31,4 +31,4 @@ public void actionPerformed(ActionEvent e){
         }
     }
 
-}
+}

src/ReturnSuccess.java

@@ -0,0 +1,33 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class ReturnSuccess extends JFrame implements ActionListener{
+    JButton okButton;
+    public ReturnSuccess(){
+        super("Success");
+        setLayout(new GridLayout(2,1,8,8));
+        setSize(300, 600);
+        Font fontRegular = new Font("Segoe UI", Font.PLAIN, 20);
+
+        JLabel failLabel = new JLabel("Book returned successfully");
+        failLabel.setFont(fontRegular);
+
+        okButton = new JButton("OK");
+        okButton.addActionListener(this);
+        okButton.setFont(fontRegular);
+
+        add(failLabel);
+        add(okButton);
+
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        pack();
+        setResizable(true);
+        setVisible(true);
+    }
+    public void actionPerformed(ActionEvent e){
+        if(e.getSource() == okButton){
+            dispose();
+        }
+    }
+}