Notes

package course_registration;

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
import java.util.ArrayList;

enum Course {
C("C"),
CPP("C++"),
JAVA("Java"),
PYTHON("Python"),
PHP("PHP"),
PERL("Perl"),
JAVASCRIPT("JavaScript"),
HTML("HTML"),
CSS("CSS");

private final String displayName;

Course(String displayName) {
this.displayName = displayName;
}

@Override
public String toString() {
return displayName;
}
}

class Student implements Serializable {

private String studentID;
private String studentName;
private String mobileNo;
private Course course;
private String gender;

public Student(String studentID, String studentName, String mobileNo, Course course, String gender) {
this.studentID = studentID;
this.studentName = studentName;
this.mobileNo = mobileNo;
this.course = course;
this.gender = gender;
}

public String getStudentID() {
return studentID;
}

public String getStudentName() {
return studentName;
}

public String getMobileNo() {
return mobileNo;
}

public Course getCourse() {
return course;
}

public String getGender() {
return gender;
}
}

public class StudentRegistration extends JFrame {

private JTextField studentIDField;
private JTextField studentNameField;
private JTextField mobileNoField;
private JComboBox<Course> courseComboBox;
private JComboBox<String> genderComboBox;
private JTextField searchField;
private JTextField deleteField;
private DefaultTableModel tableModel;

public StudentRegistration() {
setTitle("Programming Course");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(800, 600);
setLocationRelativeTo(null);

// Main Panel
JPanel mainPanel = new JPanel(new BorderLayout());

// Header
JPanel headerPanel = new JPanel();
headerPanel.setBackground(new Color(76, 175, 80));
headerPanel.setPreferredSize(new Dimension(800, 60));
JLabel titleLabel = new JLabel("Programming Course");
titleLabel.setFont(new Font("Arial", Font.BOLD, 24));
titleLabel.setForeground(Color.WHITE);
JLabel subtitleLabel = new JLabel("Student Registration");
subtitleLabel.setFont(new Font("Arial", Font.PLAIN, 16));
subtitleLabel.setForeground(Color.WHITE);
headerPanel.setLayout(new BoxLayout(headerPanel, BoxLayout.Y_AXIS));
titleLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
subtitleLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
headerPanel.add(titleLabel);
headerPanel.add(subtitleLabel);

// Registration Panel
JPanel registrationPanel = new JPanel();
registrationPanel.setLayout(new GridBagLayout());
registrationPanel.setBorder(BorderFactory.createTitledBorder("Registration"));
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(2, 5, 5, 5); // Reduced top padding
gbc.anchor = GridBagConstraints.WEST;

studentIDField = new JTextField(15);
studentNameField = new JTextField(15);
mobileNoField = new JTextField(15);
courseComboBox = new JComboBox<>(Course.values());
genderComboBox = new JComboBox<>(new String[]{"Male", "Female"});
searchField = new JTextField(15);
deleteField = new JTextField(15);

gbc.gridx = 0;
gbc.gridy = 0;
registrationPanel.add(new JLabel("Student ID"), gbc);
gbc.gridx = 1;
registrationPanel.add(studentIDField, gbc);

gbc.gridx = 0;
gbc.gridy = 1;
registrationPanel.add(new JLabel("Student Name"), gbc);
gbc.gridx = 1;
registrationPanel.add(studentNameField, gbc);

gbc.gridx = 0;
gbc.gridy = 2;
registrationPanel.add(new JLabel("Mobile No"), gbc);
gbc.gridx = 1;
registrationPanel.add(mobileNoField, gbc);

gbc.gridx = 0;
gbc.gridy = 3;
registrationPanel.add(new JLabel("Course"), gbc);
gbc.gridx = 1;
registrationPanel.add(courseComboBox, gbc);

gbc.gridx = 0;
gbc.gridy = 4;
registrationPanel.add(new JLabel("Gender"), gbc);
gbc.gridx = 1;
registrationPanel.add(genderComboBox, gbc);

JButton addButton = new JButton("Add");
JButton readButton = new JButton("Read");

gbc.gridx = 0;
gbc.gridy = 5;
registrationPanel.add(addButton, gbc);
gbc.gridx = 1;
registrationPanel.add(readButton, gbc);

gbc.gridx = 0;
gbc.gridy = 6;
registrationPanel.add(new JLabel("Search by ID"), gbc);
gbc.gridx = 1;
registrationPanel.add(searchField, gbc);

JButton searchButton = new JButton("Search");
gbc.gridx = 1;
gbc.gridy = 7;
registrationPanel.add(searchButton, gbc);

gbc.gridx = 0;
gbc.gridy = 8;
registrationPanel.add(new JLabel("Delete by ID"), gbc);
gbc.gridx = 1;
registrationPanel.add(deleteField, gbc);

JButton deleteButton = new JButton("Delete");
deleteButton.setBackground(Color.RED);
deleteButton.setForeground(Color.WHITE);
gbc.gridx = 1;
gbc.gridy = 9;
registrationPanel.add(deleteButton, gbc);

// Table Panel
JPanel tablePanel = new JPanel();
tablePanel.setBorder(BorderFactory.createTitledBorder("Student List"));
tableModel = new DefaultTableModel(new String[]{"Id", "Name", "Mobile", "Course", "Gender"}, 0);
JTable table = new JTable(tableModel);
JScrollPane scrollPane = new JScrollPane(table);
tablePanel.setLayout(new BorderLayout());
tablePanel.add(scrollPane, BorderLayout.CENTER);

mainPanel.add(headerPanel, BorderLayout.NORTH);
mainPanel.add(registrationPanel, BorderLayout.WEST);
mainPanel.add(tablePanel, BorderLayout.CENTER);

add(mainPanel);

// Event Listeners
addButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String studentID = studentIDField.getText();
String studentName = studentNameField.getText();
String mobileNo = mobileNoField.getText();
Course course = (Course) courseComboBox.getSelectedItem();
String gender = (String) genderComboBox.getSelectedItem();

if (!studentID.isEmpty() && !studentName.isEmpty() && !mobileNo.isEmpty()) {
Student student = new Student(studentID, studentName, mobileNo, course, gender);
saveStudent(student);

studentIDField.setText("");
studentNameField.setText("");
mobileNoField.setText("");
courseComboBox.setSelectedIndex(0);
genderComboBox.setSelectedIndex(0);
} else {
JOptionPane.showMessageDialog(null, "Please fill in all fields.", "Error", JOptionPane.ERROR_MESSAGE);
}
}
});

readButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
readStudents();
}
});

searchButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String searchID = searchField.getText();
if (!searchID.isEmpty()) {
searchStudent(searchID);
} else {
JOptionPane.showMessageDialog(null, "Please enter a Student ID to search.", "Error", JOptionPane.ERROR_MESSAGE);
}
}
});

deleteButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String deleteID = deleteField.getText();
if (!deleteID.isEmpty()) {
deleteStudent(deleteID);
deleteField.setText("");
} else {
JOptionPane.showMessageDialog(null, "Please enter a Student ID to delete.", "Error", JOptionPane.ERROR_MESSAGE);
}
}
});
}

private void saveStudent(Student student) {
ArrayList<Student> studentList = new ArrayList<>();
File file = new File("students.ser");
if (file.exists()) {
studentList = readStudentList();
}
studentList.add(student);
try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file))) {
oos.writeObject(studentList);
} catch (IOException e) {
e.printStackTrace();
}
}

private ArrayList<Student> readStudentList() {
ArrayList<Student> studentList = new ArrayList<>();
File file = new File("students.ser");
if (file.exists()) {
try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file))) {
studentList = (ArrayList<Student>) ois.readObject();
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
}
return studentList;
}

private void readStudents() {
tableModel.setRowCount(0);
ArrayList<Student> studentList = readStudentList();
for (Student student : studentList) {
tableModel.addRow(new Object[]{
student.getStudentID(),
student.getStudentName(),
student.getMobileNo(),
student.getCourse().toString(),
student.getGender()
});
}
}

private void searchStudent(String studentID) {
tableModel.setRowCount(0);
ArrayList<Student> studentList = readStudentList();
boolean found = false;
for (Student student : studentList) {
if (student.getStudentID().equals(studentID)) {
tableModel.addRow(new Object[]{
student.getStudentID(),
student.getStudentName(),
student.getMobileNo(),
student.getCourse().toString(),
student.getGender()
});
found = true;
}
}
if (!found) {
JOptionPane.showMessageDialog(null, "No match found", "Information", JOptionPane.INFORMATION_MESSAGE);
}
}

private void deleteStudent(String studentID) {
ArrayList<Student> studentList = readStudentList();
boolean found = false;
for (Student student : studentList) {
if (student.getStudentID().equals(studentID)) {
studentList.remove(student);
found = true;
break;
}
}
if (found) {
try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("students.ser"))) {
oos.writeObject(studentList);
JOptionPane.showMessageDialog(null, "Student deleted successfully.", "Information", JOptionPane.INFORMATION_MESSAGE);
readStudents();
} catch (IOException e) {
e.printStackTrace();
}
} else {
JOptionPane.showMessageDialog(null, "No match found", "Information", JOptionPane.INFORMATION_MESSAGE);
}
}

public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new StudentRegistration().setVisible(true);
}
});
}
}