NPTEL Programming in Java Week 7 Assignment Answers 2024
1. Which of these exception is thrown in cases when the file specified for writing is not found?
a. IOException
b. FileException
c. FileNotFoundException
d. FileInputException
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2. Which of these values is returned by read() method is end of file (EOF) is encountered?
a. 0
b. 1
c. -1
d. Null
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3. What will be the output of the following Java program?
a. abc
b. abcd
c. abcde
d. abcdef
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4. What is the purpose of a ByteArrayOutputStream in Java?
a. To write binary data to an output stream
b. To read binary data from an input stream
c. To convert characters to bytes
d. To store binary data in memory
Answer :-
5. Which method is used to read b length bytes from the input stream into an array?
a. public void read(int b)throws IOException{{
b. public int read(byte[ ] b)throws IOException{}
c. public void read(byte[ ] b)throws IOException{}
d. public int read(int b)throws IOException{}
Answer :-
6. Which method is used to create a directory with fileattributes?
a. Path.create()
b. Path.createDirectory()
c. Files.createDirectory(path, fileAttributes)
d. Files.create(fileAttributes)
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7. What will be the output of the following Java program?
a. 20
b. 100
c. 1000
d. 2
Answer :-
8. Which class is used to write primitive data types to an output stream in Java?
a. DataOutputStream
b. ObjectOutputStream
c. OutputStream
d. PrintWriter
Answer :-
9. What will be the output of the following code?
a. It will give compile-time error
b. It will give run-time error
c. j
d. 106
Answer :-
10. What will be the output of the following code.
file.txt contain “This is Programming in Java online course.” (without quotes)
a. 42
b. 35
c. 7
d. 0
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