30-serialization and thread example
Serialization in Java is a mechanism to convert an object into a byte stream so that it can be easily persisted to a file, transmitted over a network, or stored in a database. The reverse process, converting the byte stream back into a copy of the original object, is called deserialization.
Key Concepts of Serialization
Serializable Interface:
For an object to be serializable, its class must implement the Serializable interface, which is a marker interface (contains no methods). This tells the Java Virtual Machine (JVM) that objects of this class can be serialized.