1. Which of these classes can return more than one character to be returned to input stream?

1. 1. CharArrayReader

   
   
   

   2. PushbachReader

   
   
   

   3. BufferedReader

   
   
   

   4. Bufferedwriter

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   PushbackReader class allows one or more characters to be returned to the input stream. This allows looking ahead in input stream and performing action accordingly.

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2. Which of these method of FileReader class is used to read characters from a file?

1. 1. get()

   
   
   

   2. scanf()

   
   
   

   3. getInteger()

   
   
   

   4. read()

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   read()

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3. Which of these class can be used to implement the input stream that uses a character array as the source?

1. 1. FileReader

   
   
   

   2. FileArrayReader

   
   
   

   3. BufferedReader

   
   
   

   4. CharArrayReader

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   CharArrayReader is an implementation of an input stream that uses character array as a source. Here array is the input source.

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4. Which of these class is used to read characters in a file?

1. 1. FileWriter

   
   
   

   2. FileInputStream

   
   
   

   3. InputStreamReader

   
   
   

   4. FileReader

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   FileReader

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5. What is the output of this program?
   

   import java.io.*;
      public class Chararrayinput_Example
       {
           public static void main(String[] args) 
           {
   	    String object = "Interview Mania";
               int length = object.length();
               char p[] = new char[length];
               object.getChars(0,length,p,0);
               CharArrayReader input1 = new CharArrayReader(p);
               CharArrayReader input2 = new CharArrayReader(p, 0, 3);
               int K;
               try 
               {
   		while ((K = input1.read()) != -1) 
                   {
                       System.out.print((char)K);
                   }
          	    } 
               catch (IOException e) 
               {
   	        // TODO Auto-generated catch block
                   e.printStackTrace();
   	    }
   	}
       }
   

1. 1. Interview

   
   
   

   2. Mania

   
   
   

   3. Interview Mania

   
   
   

   4. InterviewMania

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   Interview Mania

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