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scjp (DataInputStream)

 
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54. Which of the following will compile without error?
A) File f = new File("/","autoexec.bat");
B) DataInputStream d = new DataInputStream(System.in);
C) OutputStreamWriter o = new OutputStreamWriter(System.out);
D) RandomAccessFile r = new RandomAccessFile("OutFile");
can a datainputstream take the system.in as an parameter, the datainputstream is high level, so it needs lowlevel stream, plz make this clear
shyam
[ Jess added a more descriptive title ]
[ January 22, 2004: Message edited by: Jessica Sant ]
 
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A DataInputStream is constructed with an InputStream object.
System.in is a BufferedInputStream, which extends FilterInputStream, which extends InputStream.
Therefore, System.in 'is-a' InputStream and can be used as a constructor argument for DataInputStream.
 
Sham Grandhe
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hai Ray Stojonic,
thank you fr the kind information, I've been given the exact informaion that Ineed.
 
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We need your help - Coderanch server fundraiser
https://coderanch.com/t/782867/Coderanch-server-fundraiser
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