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Java I/O Package MCQ

1. Breaking a string or stream into meaningful independent words is known as tokenization.

False

True

Answer

Correct Answer: True

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2. SequenceInputStream class is used to read data from?

None

Single Stream

Multiple streams

Multilevel Streams

Answer

Correct Answer: Multiple streams

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3.
These four methods are commonly used in?
public char[] readPassword(String fmt,Object... args)
public String readLine()
public String readLine(String fmt,Object... args)
public char[] readPassword(

Scanner Class

InputStreamReader class

Console class

DataInputStream

Answer

Correct Answer: Console class

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4. The java.io.StreamTokenizer.nextToken() method parses the next token from the?

Output stream of this tokenizer

Output stream of this tokenizer And input stream of this tokenizer

None

Input stream of this tokenizer

Answer

Correct Answer: Input stream of this tokenizer

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5. Which class breaks the input into tokens using a delimiter which is whitespace bydefault, It provides many methods to read and parse various primitive values?

Console class And Scanner class

None

Console class

Scanner Class

Answer

Correct Answer: Scanner Class

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6.
These commonly used methods of:
1) public abstract int read()throws IOException
2) public int available()throws IOException
3) public void close()throws IOException

Input/OutputStream class

None

OutputStream class

InputStream class

Answer

Correct Answer: InputStream class

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7. Which method of DataInputStream class reads a line from the file and returns it as a string?

ReadInt()

WriteDouble()

WriteInt()

ReadLine()

Answer

Correct Answer: ReadLine()

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8. Which class is used to uncompress the file in the deflate compression format, It provides facility to the other uncompression filters?

None

InflaterInputStream class

DeflaterOutputStream class

DeflaterOutputStream class And InflaterInputStream class

Answer

Correct Answer: InflaterInputStream class

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9. Which are the ways to read data from the keyboard?

InputStreamReader

DataInputStream

Scanner

All

Console

Answer

Correct Answer: All

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10. Which is used to converts the byte-oriented stream into character-oriented stream?

DataInputStream

InputStreamReader

Scanner

Console

Answer

Correct Answer: InputStreamReader

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11. Which class can be used to read data line by line by readLine() method?

DataInputStream

BufferedReader

InputStreamReader

None

Answer

Correct Answer: BufferedReader

Note: This Question is unanswered, help us to find answer for this one

12. The stream tokenizer class can recognize identifiers, numbers, quoted strings, and various comment styles?

True

False

Answer

Correct Answer: True

Note: This Question is unanswered, help us to find answer for this one

13. The PipedInputStream and PipedOutputStream classes can be used to read and write data simultaneously?

False

True

Answer

Correct Answer: True

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14. A stream is a sequence of data.In Java a stream is composed of?

Bytes

Bits And Bytes

None

Bits

Answer

Correct Answer: Bytes

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15. The PrintStream class provides methods to?

Write data to another stream

Read data to same stream

Read data to another stream

Write data to same stream

Answer

Correct Answer: Write data to another stream

Note: This Question is unanswered, help us to find answer for this one

Java MCQs | Topic-wise

MCQ on Applet	MCQ on Basic Java
MCQ on Introduction to Java	MCQ on J2EE (Java Platform, Enterprise Edition)
MCQ on Java AWT And Swing	MCQ on Java Database Connectivity
MCQ on Java I/O Package	MCQ on Java Language Access Control And Declaration
MCQ on Java keywords	MCQ on Sun Certified Java Programmer (SCJP)
General Java MCQs

Java I/O Package MCQ

1. Breaking a string or stream into meaningful independent words is known as tokenization.

2. SequenceInputStream class is used to read data from?

3. These four methods are commonly used in?public char[] readPassword(String fmt,Object... args)public String readLine()public String readLine(String fmt,Object... args)public char[] readPassword(

4. The java.io.StreamTokenizer.nextToken() method parses the next token from the?

5. Which class breaks the input into tokens using a delimiter which is whitespace bydefault, It provides many methods to read and parse various primitive values?

6. These commonly used methods of: 1) public abstract int read()throws IOException2) public int available()throws IOException3) public void close()throws IOException

7. Which method of DataInputStream class reads a line from the file and returns it as a string?

8. Which class is used to uncompress the file in the deflate compression format, It provides facility to the other uncompression filters?

9. Which are the ways to read data from the keyboard?

10. Which is used to converts the byte-oriented stream into character-oriented stream?

11. Which class can be used to read data line by line by readLine() method?

12. The stream tokenizer class can recognize identifiers, numbers, quoted strings, and various comment styles?

13. The PipedInputStream and PipedOutputStream classes can be used to read and write data simultaneously?

14. A stream is a sequence of data.In Java a stream is composed of?

15. The PrintStream class provides methods to?

3.
These four methods are commonly used in?
public char[] readPassword(String fmt,Object... args)
public String readLine()
public String readLine(String fmt,Object... args)
public char[] readPassword(

6.
These commonly used methods of:
1) public abstract int read()throws IOException
2) public int available()throws IOException
3) public void close()throws IOException