import java.io.*;

// کلاس مدل دانشجو
class Student implements Serializable {
    private String name;
    private int age;

    // سازنده
    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    // متد برای چاپ اطلاعات
    public void display() {
        System.out.println("Name: " + name + ", Age: " + age);
    }
}

public class Main {
    public static void main(String[] args) {
        // شیء برای ذخیره
        Student s1 = new Student("Ali", 22);

        // ✅ Serialization: ذخیره در فایل
        try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("student.ser"))) {
            out.writeObject(s1);
            System.out.println("✅ Object serialized successfully!");
        } catch (IOException e) {
            e.printStackTrace();
        }

        // ✅ Deserialization: خواندن از فایل
        try (ObjectInputStream in = new ObjectInputStream(new FileInputStream("student.ser"))) {
            Student s2 = (Student) in.readObject();
            System.out.println("✅ Object deserialized successfully!");
            s2.display();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

#کاربرـحرفهـای

🆔 @javapro_ir
🆔 @group_javapro

import java.io.*;

class User implements Serializable {
    private String username;
    private transient String password; // ذخیره نمی‌شود 🚫

    public User(String username, String password) {
        this.username = username;
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{username='" + username + "', password='" + password + "'}";
    }
}

public class Main {
    public static void main(String[] args) throws Exception {
        User user = new User("Saleh", "12345");

        // Serialize
        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("user.ser"));
        oos.writeObject(user);
        oos.close();

        // Deserialize
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("user.ser"));
        User deserializedUser = (User) ois.readObject();
        ois.close();

        System.out.println("بعد از Deserialize:");
        System.out.println(deserializedUser); 
        // password = null چون transient بوده
    }
}

import java.io.*;

class Person implements Serializable {
    private static final long serialVersionUID = 1L; // ثابت ✅
    private String name;
    private int age;

    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
}

#کاربرـحرفهـای

🆔 @javapro_ir
🆔 @group_javapro