What should you do?

you have recently written the code shown below:
Hashtable emailAddresses = new Hashtable ();
emailAddresses.Add (“Mia”, “mia@ Domain.com”);
emailAddresses.Add (“Andy”, “andy@ Domain.com”);
emailAddresses.Add (“Kara”, “kara@ Domain.com”);
You need to ensure that these e-mail addresses are stored in the Email.dat file so that you can load them again
when the user restarts the application.
What should you do?

you have recently written the code shown below:
Hashtable emailAddresses = new Hashtable ();
emailAddresses.Add (“Mia”, “mia@ Domain.com”);
emailAddresses.Add (“Andy”, “andy@ Domain.com”);
emailAddresses.Add (“Kara”, “kara@ Domain.com”);
You need to ensure that these e-mail addresses are stored in the Email.dat file so that you can load them again
when the user restarts the application.
What should you do?

A.
Add the following code:
FileStream stream = new FileStream (“Email.dat”, FileMode.Create);
BinaryFormatter formatter = new BinaryFormatter ();
formatter.Deserialize(stream, emailAddresses);

B.
Add the following code:
FileStream stream = new FileStream (“Email.dat”, FileMode.Create);
BinaryFormatter formatter = new BinaryFormatter ();
formatter.Serialize(stream, emailAddresses);

C.
Add the following code:
FileStream stream = new FileStream (“Email.dat”, FileMode.Create);
stream.Serialize(emailAddresses);

D.
Add the following code:
FileStream stream = new FileStream (“Email.dat”, FileMode.Create);
stream.WriteObject(emailAddresses);

Explanation:
This code instantiates a file stream, instantiates a BinaryFormatter object, and serializes the emailAddresses object to the Email.dat file. The FileStream constructor takes a file path string and FileMode enumeration as arguments. The Serialize method of the BinaryFormatter class takes two arguments, a stream and the object to be serialized.
The Serialize method uses the stream to write the object to the destination.
Incorrect Answers:
A: You should not add the code that invokes the Deserialize method of the BinaryFormatter class because you must serialize the object first. C D: You should not add the code fragments that do not instantiate the BinaryFormatter object
because the WriteObject and Serialize methods do not exist in the FileStream class.



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networkmanagers

networkmanagers

I choose B