This is a basic explanation about what is serialization and how to serialize and deserialize object

Java Serialization and Deserialization

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║    Serialization in Java refers to the process of converting an object into a byte stream.         ║
║    Which can be easily stored in a file, transmitted over a network, or saved in a database.       ║
║    This allows objects to be saved and reconstructed later, effectively preserving their state.    ║
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║    To serialize an object in Java, you need to implement the Serializable interface, which is a    ║
║    marker interface indicating that the object can be serialized. The serialization process is     ║
║    handled by the Java runtime and doesn't require explicit coding.                                ║
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║                                       OBJECT FOR EXAMPLE                                           ║
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                                      You can use any object

class Person implements Serializable {
    private String name;
    private int age;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

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║                                             SERIALIZE                                              ║
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import java.io.*;

public class SerializationExample {
    public static void main(String[] args) {
        // Create an object to serialize
        Person person = new Person("John Doe", 30);

        // Serialize the object to a file
        try (FileOutputStream fileOut = new FileOutputStream("person.ser");
             ObjectOutputStream out = new ObjectOutputStream(fileOut)) {
            out.writeObject(person);
            System.out.println("Object serialized successfully.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

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║                                          DESERIALIZE                                               ║
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import java.io.*;

public class DeserializationExample {
    public static void main(String[] args) {
        // Deserialize the object from the file
        try (FileInputStream fileIn = new FileInputStream("person.ser");
             ObjectInputStream in = new ObjectInputStream(fileIn)) {
            Person person = (Person) in.readObject();
            System.out.println("Object deserialized successfully.");

            // Access the object's data
            System.out.println("Name: " + person.getName());
            System.out.println("Age: " + person.getAge());
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}