What is the purpose of Serialization in Java?

Question

I have read quite a number of articles on Serialization and how it is so nice and great but none of the arguments were convincing enough. I am wondering if someone can reall

Answer 1

For the simple purpose of learning (notice, I said learning, I did not say best, or even good, but just for the sake of understanding stuff), you could save your data to a text file on the computer, then have a program that reads that info, and based on the file, you could have your program respond differently. If you were more advanced, it wouldn't necessarily have to be a txt file, but something else.

Serializing on the other hand, puts things directly into computer language. It's like you're telling a Spanish computer something in Spanish, rather than telling it something in French, forcing it to learn French, then save things into its native Spanish by translating everything. Not the most tech-intensive answer, I'm just trying to create an understandable example in a common language format.

Serialization is also faster, because in Java, objects are handled on the heap, and take much longer than if they were represented as primitives on the stack. Speed, speed, speed. And less file processing from a programmer point of view.

Answer 2

In essense:

Serialization is the process of converting a set of object instances that contain references to each other into a linear stream of bytes, which can then be sent through a socket, stored to a file, or simply manipulated as a stream of data

See uses from Wiki:

Serialization has a number of advantages. It provides:

1. a method of persisting objects which is more convenient than writing their properties to a text file on disk, and re-assembling them by reading this back in.
2. a method of issuing remote procedure calls, e.g., as in SOAP
3. a method for distributing objects, especially in software componentry such as COM, CORBA, etc.
4. a method for detecting changes in time-varying data.