User.java

import java.io.Serializable;

public class User implements Serializable {
    private String name;
    private String email;
    private String password;
    private String role;
    
    // Constructor
    public User(String name, String email, String password, String role) {
        this.name = name;
        this.email = email;
        this.password = password;
        this.role = role;
    }
    
    // Getters and Setters
    public String getName() {
        return name;
    }
    
    public void setName(String name) {
        this.name = name;
    }
    
    public String getEmail() {
        return email;
    }
    
    public void setEmail(String email) {
        this.email = email;
    }
    
    public String getPassword() {
        return password;
    }
    
    public void setPassword(String password) {
        this.password = password;
    }
    
    public String getRole() {
        return role;
    }
    
    public void setRole(String role) {
        this.role = role;
    }
    
    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", email='" + email + '\'' +
                ", role='" + role + '\'' +
                '}';
    }
    
    // Format for file storage
    public String toFileString() {
        return name + "|" + email + "|" + password + "|" + role;
    }
    
    // Create user from file string
    public static User fromFileString(String line) {
        String[] parts = line.split("\\|");
        if (parts.length == 4) {
            return new User(parts[0], parts[1], parts[2], parts[3]);
        }
        return null;
    }
}