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Java IO Serialization

Question : 14

Total: 17

Given:
bw is a reference to a valid BufferedWriter And the snippet:

1. BufferedWriter b1 = new BufferedWriter(new File("f"));
2. BufferedWriter b2 = new BufferedWriter(new FileWriter("f1"));
3. BufferedWriter b3 = new BufferedWriter(new PrintWriter("f2"));
4. BufferedWriter b4 = new BufferedWriter(new BufferedWriter(bw));

What is the result?

Compilation succeeds.
Compilation fails due only to an error on line 1.
Compilation fails due only to an error on line 2.
Compilation fails due only to an error on line 3.
Compilation fails due only to an error on line 4.
Compilation fails due to errors on multiple lines.

Validate

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