Serialization

✅ Serialization

converting the state of an object into a byte stream

• all PCs would have different virtual memory according to their OS
• so reference types cannot travel across a network, need to be serialized
• transmit object data in forms of address❌ byte⭕️
• serialized data becomes primitive data

👍🏻 Save/persist state of an object.
👍🏻 Travel an object across a network.

🛠️ How to serialize

• implement java.io.Serializable interface

✔️ SerialVersionUID

version number of serialization
used during Deserialization to verify that sender and receiver of a serialized object have loaded classes for that object which are compatible with respect to serialization

💡 Reference

https://soheeparklee.github.io/posts/JAVA_4serverClient/