18. Files Flashcards
«_space;is to * like»_space; is to /, or is it vice versa?
Shifting left (<>) has the same effect as division.
What is the value of each of the following expressions?
- 16 & 8 & 4 & 2 & 1
- 16 | 8 | 4 | 2 | 1
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What possible values are given to the method(s) used for writing data? Bytes? Characters? Lines?
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What result is returned by PrintWriter: checkError() instance method if something has gone wrong?
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What does PrintWriter not have that PrintStream does? Is that something we want to generally use?
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What is flushing and automatic flushing?
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Is IOException a subclass Exception or RuntimeException? Is it a checked or unchecked exception Type?
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What possible values are returned from the method used for reading data (InputStream)? Bytes? Characters? Lines? Some other value?
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What possible values are returned from the instance method used for reading data? Bytes? Characters? Lines? Some other value? (InputStreamReader)
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What possible values are returned from the method used for reading data? Bytes? Characters? Lines? Some other value? (BufferedReader)
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What is the superclass of FileInputSteam class?
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FileWriter class is merely a convenience for something. What?
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How do we use the File class to check for the existence of a file?
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In that order are bytes of a number written?
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In what order are bytes of a number read?
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The type of System.out and System.err is actually a subclass of OutputStream - which one?
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System: err: OutputStream allows access to the standard input, as bytes or characters.
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Does the System: in: InputStream allow access to the standard input, as bytes or characters?
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Does System: out: OutputStream allow to access to the standard output as bytes, characters or both?
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What is the significance of the associativity of the assignment operator? Is it left or right?
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Under what circumstances is the finally block executed?
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Why is it generally a good idea not to rely on initial values of variables? Which kinds of variables are we forced to initialize?
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