Java OCA OCP Practice Question 2468

Question

Which option, when inserted at //INSERT CODE HERE, will enable method read() in class Main to read and output its own source file?. 

class Main{/*from   w  ww  .  jav  a  2s. c  o  m*/
    public void read() throws IOException{
        File f = new File("Main.java");
        FileReader fr = new FileReader(f);
        BufferedReader br = new BufferedReader(fr);
        String line = null;
        //INSERT CODE HERE
            System.out.println(line);
        br.close();
        fr.close();
    }
}
  • a while ((line = br.readLine()) != null)
  • b while ((line = fr.readLine()) != null)
  • c while ((line = f.readLine()) != null)
  • d while ((line = br.readLine()) != -1)
  • e while ((line = fr.readLine()) != -1)
  • f while ((line = f.readLine()) != -1)


a

Note

Method readLine() isn't defined in classes File and FileReader.

It's defined only in class BufferedReader.

Also, readLine() returns null if the end of the stream has been reached.




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