Java IO Test 2 | Java IO online quiz, Online practice Test - Java Test
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Question 1 of 20
1. Question
What happens if readLine() encounters an error?
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Question 2 of 20
2. Question
Which of the following is used in a C-style input loop?
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Question 3 of 20
3. Question
What stream type provides input from a disk file?
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Question 4 of 20
4. Question
Can a FileReader object be constructed that is not connected to any file?
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Question 5 of 20
5. Question
What method is used to notify the operating system that a file is no longer needed?
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Question 6 of 20
6. Question
What is the ancestor class of all character-oriented input streams?
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Question 7 of 20
7. Question
What data type does readLine() return?
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Question 8 of 20
8. Question
What class does readLine() belong to?
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Question 9 of 20
9. Question
Should FileReader be used to read a Java bytecode (*.class) file?
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Question 10 of 20
10. Question
What value does readLine() return upon encountering end-of-file?
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Question 11 of 20
11. Question
Will the following code compile correctly?
File file = new File(“temp.txt”);
FileReader in = new FileReader( file );Correct
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Question 12 of 20
12. Question
What File method creates a new disk directory?
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Question 13 of 20
13. Question
What method of File is used to test if a file or directory exists?
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Question 14 of 20
14. Question
The path name of a file is given by:
C:My Files Programs Examplessome File.txt
Is this a relative or an absolute path name?Correct
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Question 15 of 20
15. Question
A program uses the FileWriter constructor with the string “newFile.txt”. What happens if “newFile.txt” already exists?
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Question 16 of 20
16. Question
What abstract data type is the ancestor of all streams that input byte-oriented data?
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Question 17 of 20
17. Question
The path name of a file is given by-
C:My Files Programs Examples some File.txt
What is the absolute path name of the directory the file is located in?Correct
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Question 18 of 20
18. Question
Does constructing a File object automatically create a disk file?
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Question 19 of 20
19. Question
What package holds the File class?
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Question 20 of 20
20. Question
What File method is used to remove a file?
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