Serialization vs Synchronization

Serialization is used whenever you try to store an object in a file or suppose

you want to transfer an object from one application to another application via

network in that case you serialize an object so whenever a object is serialize

it make sense because it can be transferred over the network and it can be

persisted. This is very important whenever data is transferred across the

network or you want to store it in a file right to a file. Synchronization is

whenever multiple thread that trying to access object or instance or method

then there might be problem for concurrency issues because it may happen that

once I just trying to modify the value of a variable and at the same time

another thread is trying to read it so in those cases we try to use

synchronized keyword over a block of code or over a method so that only one

thread can access that method at a time and all other threads have to wait so

only when this current thread exist the method and releases the control to

other threads in waiting.

In Other way:

Synchronization is a concurrency issue, e.g. how do you coordinate access to an object from multiple threads.

Here an arrow represents access.

                            s

 [thread1] ---------------> y

                            n [shared object]

 [thread2] ---------------> c

                            h

Serialization is the conversion of data structures and objects into a sequence of bits that you can store/transmit and then convert back to data structures and objects.

Here an arrow represents conversion.

            deserialization

           <---------------

  [object]                  [binary]

           --------------->

            serialization

This is most useful when the deserialization happens at another place and/or time.