Chapter 22

Question 1

Can we send objects to stream

Answer 1

Yes

Question 2

What is serialization in socket programming

Answer 2

object knows how to read/write themselves to streams and pass through streams

Question 3

What are other names of serialization

Answer 3

Flatteing, streaming, dehydrate

Question 4

How we implement serialization in java

Answer 4

Through serializeable interface

Question 5

What is the package for serialization

Answer 5

java.io

Question 6

What is tagging interface

Answer 6

Tagging interface has no methods and serves only to identify the semantics of being serializable

Question 7

Does serializable interface a tagging interface

Answer 7

Yes

Question 8

What is automatic writing in serialization

Answer 8

System knows how to recursively write out the state of an object to stream

Question 9

What is automatic reading in serialization

Answer 9

System knows how to read the data from stream and re-create object in memory

Question 10

How can we prevent serialization

Answer 10

Using transient keyword

Question 11

What is multithreading

Answer 11

There are multiple processes run in computer and we want that they run parallel (concurrency). This architecture is called multithreading

Question 12

What are 2 ways of achieving multithreading

Answer 12

software

hardware

Question 13

What are hardware concurrency trends

Answer 13

• Multiple CPUS’s

- Multiple cores on single chip

Question 14

What are software concurrency trends

Answer 14

• Processes

- Threads

Question 15

Does thread share address-space

Answer 15

Yes

Question 16

Does thread can share memory variables directly

Answer 16

Yes

Question 17

Does thread use multiple processors

Answer 17

Yes