Question: How many bytes does the following code write to file destfile?

Question: How many bytes does the following code write to file destfile?

1. try{
2. FileOutputStream fos = new FileOutputStream("destfile");
3. DataOutputStream dos = new DataOutputstream(fos);
4. dos.writeInt(3);
5. dos.writeDouble(0.0001);
6. dos.close();
7. fos.close();
8. }
9. catch (IOException e) {}

A. 2

B. 8

C. 12

D. 16

E. The number of bytes depends on the underlying system.

Answer:C is correct. The writeInt() call writes out an int, which is 4 bytes long; the writeDouble() call writes out a double, which is 8 bytes long, for a total of 12 bytes.

 

 

 

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