Streams Java

which of the following is wrapper class in java

• Float

• Integer

• Double

• all of above

which of this class is used by character streams for reading data from buffer

• BufferReader

• InputStreamReader

• FileReader

• FileInputStream

superclass of all classes representing the output stream of characters is -------------

• OutputStream

• Reader

• InputStream

• Writer

What is serialization in Java?

• It is a process of converting Object data into sequence of bytes

• It is the process of converting Sequence of bytes into Objects

• Used to transform data in serial form

• No serialization in java

what is the purpose of 'transient' keyword in serialization

• used to provide security to the data

• It is not used with serialization

• These transient members prints primitive type default values at the time of de-serialization

• These transient members prints garbage values at the time of de-serialization

Serialization throws an error

• when two classes combined with HAS-A relationship

• when two classes combined with IS-A relationship

• Both HAS-A and IS-A gives error

• either HAS-A or IS-A gives error

What is/are the possible exception(s) in De-serialization

• IOException

• ClassNotFoundException

• ClassCastException

• SerializationNotSupportedException

The following class(es) is/are used in serialization and deserialization process

• ObjectOutputStream

• ObjectInputStream()

• DataOuptutStream

• BufferedReader

static members serialization is possible

• True

• False

What is the name of marker interface used in Serialization

• Serializable

• Serial

• Cloneable

• Serialization