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6 Cards in this Set

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  • Back
Where would you use the File class?
The File class is used to create objects that provide access to the files and directories of a local file system.
What is an I/O filter?
An I/O filter is an Object that reads from one stream and writes to another, usually altering the data in some way as it is passed from one stream to another.
In System.out.printLn(), What is System, out and printLn?
System is a predefined class, out is a PrintStream that represents standard out and printLn is a built-in method for printing output one line at a time.
What is a transient variable?
A transient variable is a variable that may not be serialized. If you don't want some field to be serialized, you can mark it transient or static.
What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream hierarchy?
Reader/Writer is character orientated and InputStream/OutputStream is byte-orientated.
What is an IOException? Can you give some examples of a few sub-classes of this Exception?
IOException signals that an I/O operation of some type has failed. Examples of IOException sub-classes are, FileNotFoundException, EOFException and SocketException.