FootballManagement.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;


public class FootballManagement extends JFrame implements ActionListener {

    JButton addBtn, deleteBtn, editBtn, searchBtn, exitBtn;
    JTextField idField, nameField, searchField;
    JLabel idLabel, nameLabel, searchLabel, titleLabel;
    JScrollPane scrollPane;
	JPanel panel;
	
    private Player[] players = new Player[100];
    private int count = 0; // current number of players

    public FootballManagement() {
        super("Football Management System");

        setSize(600, 400);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setLayout(null);
        getContentPane().setBackground(new Color(25, 25, 50));


        // Title
        titleLabel = new JLabel("Football Management", SwingConstants.CENTER);
        titleLabel.setBounds(150, 10, 300, 30);
        titleLabel.setFont(new Font("Arial", Font.BOLD, 24));
        add(titleLabel);
        titleLabel.setForeground(Color.WHITE);

        
        // ID Label and Field
        idLabel = new JLabel("Player ID:");
        idLabel.setBounds(50, 60, 100, 25);
        add(idLabel);
        idLabel.setForeground(Color.WHITE);

        idField = new JTextField();
        idField.setBounds(150, 60, 150, 25);
        add(idField);

        // Name Label and Field
        nameLabel = new JLabel("Player Name:");
        nameLabel.setBounds(50, 100, 100, 25);
        add(nameLabel);
        nameLabel.setForeground(Color.WHITE);

        nameField = new JTextField();
        nameField.setBounds(150, 100, 150, 25);
        add(nameField);

        // Search Label and Field
        searchLabel = new JLabel("Search by ID:");
        searchLabel.setBounds(50, 140, 100, 25);
        add(searchLabel);
        searchLabel.setForeground(Color.WHITE);
        
        searchField = new JTextField();
        searchField.setBounds(150, 140, 150, 25);
        add(searchField);

        // Buttons
        addBtn = new JButton("Add");
        addBtn.setBounds(350, 60, 100, 30);
        addBtn.setBackground(new Color(46, 204, 113));
        addBtn.setForeground(Color.WHITE);
        addBtn.addActionListener(this);
        add(addBtn);

        deleteBtn = new JButton("Delete");
        deleteBtn.setBounds(350, 100, 100, 30);
        deleteBtn.setBackground(Color.RED);
        deleteBtn.setForeground(Color.WHITE);
        deleteBtn.addActionListener(this);
        add(deleteBtn);

        editBtn = new JButton("Edit");
        editBtn.setBounds(350, 140, 100, 30);
        editBtn.setBackground(new Color(52,152,219));
        editBtn.setForeground(Color.WHITE);
        editBtn.addActionListener(this);
        add(editBtn);

        searchBtn = new JButton("Search");
        searchBtn.setBounds(350, 180, 100, 30);
        searchBtn.setBackground(new Color(155,89,182));
        searchBtn.setForeground(Color.WHITE);
        searchBtn.addActionListener(this);
        add(searchBtn);

        exitBtn = new JButton("Exit");
        exitBtn.setBounds(350, 220, 100, 30);
        exitBtn.setBackground(Color.BLACK);
        exitBtn.setForeground(Color.WHITE);
        exitBtn.addActionListener(this);
        add(exitBtn);

        setVisible(true);
    }

    // ActionListener method
    public void actionPerformed(ActionEvent e) {
        String id = idField.getText().trim();
        String name = nameField.getText().trim();
        String searchId = searchField.getText().trim();

        if (e.getSource() == addBtn) {
            if (id.isEmpty() || name.isEmpty()) {
                JOptionPane.showMessageDialog(this, "Please enter both Player ID and Name.");
                return;
            }
            if (findPlayerById(id) != -1) {
                JOptionPane.showMessageDialog(this, "Player ID already exists.");
                return;
            }
            if (count >= players.length) {
                JOptionPane.showMessageDialog(this, "Player list is full.");
                return;
            }
            players[count++] = new Player(id, name);
            JOptionPane.showMessageDialog(this, "Player added successfully.");
            clearFields();

        } else if (e.getSource() == deleteBtn) {
            if (searchId.isEmpty()) {
                JOptionPane.showMessageDialog(this, "Enter Player ID to delete.");
                return;
            }
            int index = findPlayerById(searchId);
            if (index == -1) {
                JOptionPane.showMessageDialog(this, "Player not found.");
                return;
            }
            // Shift players to delete
            for (int i = index; i < count - 1; i++) {
                players[i] = players[i + 1];
            }
            players[--count] = null;
            JOptionPane.showMessageDialog(this, "Player deleted successfully.");
            clearFields();

        } else if (e.getSource() == editBtn) {
            if (id.isEmpty() || name.isEmpty()) {
                JOptionPane.showMessageDialog(this, "Please enter both Player ID and Name to edit.");
                return;
            }
            int index = findPlayerById(id);
            if (index == -1) {
                JOptionPane.showMessageDialog(this, "Player not found.");
                return;
            }
            players[index].setName(name);
            JOptionPane.showMessageDialog(this, "Player updated successfully.");
            clearFields();

        } else if (e.getSource() == searchBtn) {
            if (searchId.isEmpty()) {
                JOptionPane.showMessageDialog(this, "Enter Player ID to search.");
                return;
            }
            int index = findPlayerById(searchId);
            if (index == -1) {
                JOptionPane.showMessageDialog(this, "Player not found.");
                clearFields();
                return;
            }
            idField.setText(players[index].getId());
            nameField.setText(players[index].getName());

        } else if (e.getSource() == exitBtn) {
            System.exit(0);
        }
    }

    // Helper to find player index by ID
    private int findPlayerById(String id) {
        for (int i = 0; i < count; i++) {
            if (players[i].getId().equals(id)) {
                return i;
            }
        }
        return -1;
    }

    // Clear all text fields
    private void clearFields() {
        idField.setText("");
        nameField.setText("");
        searchField.setText("");
    }

    public static void main(String[] args) {
        new FootballManagement();
    }
}