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Understanding Java Serialization, Deserialization, and Externalization
- Java allows for object serialization and deserialization, crucial in networking and file management.
- Serialization in Java is implemented through the java.io package, requiring classes to implement Serializable.
- ObjectOutputStream and ObjectInputStream handle serialization and deserialization in Java.
- The process involves writing object data to an OutputStream and reconstructing objects from the byte stream.
- Using transient keyword excludes fields from serialization to protect sensitive data.
- Externalization offers complete control over the serialization process by implementing Externalizable interface.
- Externalizable classes define methods for writing and reading object data during serialization and deserialization.
- Understanding serialization and externalization helps developers make informed decisions for efficient and safe Java applications.
- Serialization allows objects to persist beyond the JVM, useful for various applications like distributed systems.
- Serialization version identifier (UID) ensures compatibility during deserialization, preventing corrupt object data.
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