The document outlines the creation of a graphical library database system in Java that displays essential book information, including the title, authors, publication year, publisher, ISBN, and page count. It specifies functionalities such as displaying books in alphabetical order, adding, removing, and searching for books based on various criteria, as well as loading and saving databases. The implementation includes a user interface built using Java Swing components.

1. Objective:
Create a graphical database for a library IN JAVA. It should display the information of every
book in the library system. Each book should have the following information:
Name
Author(s)
Year published
Publisher
ISBN
Page Count
The system should be able to perform the following operations:
Display books in alphabetical order
Either all books or the books that met a search criteria noted below
Add a book
Remove a book
Search books based on
Name
Author
Year
Publisher
ISBN
Load a library database file
Save a library database file
Solution
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.swing.JFileChooser;
import javax.swing.table.DefaultTableModel;
public class Library extends javax.swing.JFrame {

2. public Library() {
initComponents();
}
@SuppressWarnings("unchecked")
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
table = new javax.swing.JTable();
name = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
author = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
year = new javax.swing.JTextField();
jLabel4 = new javax.swing.JLabel();
publisher = new javax.swing.JTextField();
add = new javax.swing.JButton();
Delete = new javax.swing.JButton();
Edit = new javax.swing.JButton();
jLabel5 = new javax.swing.JLabel();
isbn = new javax.swing.JTextField();
Search = new javax.swing.JButton();
jLabel6 = new javax.swing.JLabel();
pageCount = new javax.swing.JTextField();
select = new javax.swing.JComboBox();
searchMessage = new javax.swing.JLabel();
jMenuBar1 = new javax.swing.JMenuBar();
jMenu1 = new javax.swing.JMenu();
load = new javax.swing.JMenuItem();
save = new javax.swing.JMenuItem();
jMenu2 = new javax.swing.JMenu();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
table.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null, null, null},
{null, null, null, null, null, null},

3. {null, null, null, null, null, null},
{null, null, null, null, null, null}
},
new String [] {
"Name", "Author", "Year Published", "Publisher", "ISBN", "Page Count"
}
) {
Class[] types = new Class [] {
java.lang.String.class, java.lang.String.class, java.lang.String.class, java.lang.String.class,
java.lang.String.class, java.lang.Object.class
};
boolean[] canEdit = new boolean [] {
false, false, false, false, true, false
};
public Class getColumnClass(int columnIndex) {
return types [columnIndex];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return canEdit [columnIndex];
}
});
jScrollPane1.setViewportView(table);
jLabel1.setText("Name:");
jLabel2.setText("Author:");
jLabel3.setText("Year:");
jLabel4.setText("Publisher:");
add.setText("Add");
add.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
addActionPerformed(evt);
}
});
Delete.setText("Delete");
Delete.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
DeleteActionPerformed(evt);

4. }
});
Edit.setText("Edit");
Edit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
EditActionPerformed(evt);
}
});
jLabel5.setText("ISBN:");
Search.setText("Search");
Search.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
SearchActionPerformed(evt);
}
});
jLabel6.setText("Page Count:");
select.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Name", "Author",
"Year", "Publisher", "ISBN" }));
searchMessage.setText(" ");
jMenu1.setText("File");
load.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O,
java.awt.event.InputEvent.CTRL_MASK));
load.setText("Load Database");
load.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
loadActionPerformed(evt);
}
});
jMenu1.add(load);
save.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S,
java.awt.event.InputEvent.CTRL_MASK));
save.setText("Save Database");
save.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
saveActionPerformed(evt);
}

5. });
jMenu1.add(save);
jMenuBar1.add(jMenu1);
jMenu2.setText("Help");
jMenuBar1.add(jMenu2);
setJMenuBar(jMenuBar1);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(28, 28, 28)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(name, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel2)
.addGap(18, 18, 18)
.addComponent(author, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jLabel3)
.addGap(18, 18, 18)
.addComponent(year, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jLabel4)
.addGap(18, 18, 18)
.addComponent(publisher, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jLabel5)
.addGap(18, 18, 18)

6. .addComponent(isbn, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(212, 212, 212)
.addComponent(add)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(Delete)
.addGap(18, 18, 18)
.addComponent(Edit)
.addGap(18, 18, 18)
.addComponent(select, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(Search)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 30,
Short.MAX_VALUE)
.addComponent(jLabel6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(pageCount, javax.swing.GroupLayout.PREFERRED_SIZE, 84,
javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18))
.addGroup(layout.createSequentialGroup()
.addGap(20, 20, 20)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(searchMessage, javax.swing.GroupLayout.Alignment.TRAILING,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE,
Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING,
javax.swing.GroupLayout.DEFAULT_SIZE, 914, Short.MAX_VALUE))
.addContainerGap(32, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(27, 27, 27)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 113,

7. javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(27, 27, 27)
.addComponent(searchMessage)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(name, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1)
.addComponent(author, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel2)
.addComponent(year, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3)
.addComponent(publisher, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel4)
.addComponent(isbn, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel5)
.addComponent(pageCount, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel6))
.addGap(35, 35, 35)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(Delete)
.addComponent(Edit)
.addComponent(select, javax.swing.GroupLayout.PREFERRED_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Search)
.addComponent(add))
.addGap(25, 25, 25))
);
pack();
}
private void addActionPerformed(java.awt.event.ActionEvent evt) {

8. if(table.getRowCount() == i)
{
DefaultTableModel dtm = (DefaultTableModel) table.getModel();
dtm.addRow(new Object[]{"","","","","",""});
}
table.setValueAt(name.getText(), i, 0 );
table.setValueAt(author.getText(), i, 1 );
table.setValueAt(year.getText(), i, 2 );
table.setValueAt(publisher.getText(), i, 3 );
table.setValueAt(isbn.getText(), i, 4 );
table.setValueAt(pageCount.getText(), i, 5 );
i++;
}
private void DeleteActionPerformed(java.awt.event.ActionEvent evt) {
for(int j=0;j