Java SE IO

Demonstrate proper usage of the following Properties methods:

• setProperty(),
• getProperty(String) & getProperty(String, String)

Write code to correctly serialize/deserialize Properties instances with:

• store(),
• load()

Display comprehension of both the format and the character escaping of a serialized Properties instance.

Demonstrate comprehension of the hierarchical nature of resource bundles.

Write code to get an instance of a resource bundle using the static methods:

• getBundle(String),
• getBundle(String, Locale)

Display correct access techniques using:

• getKeys(),
• getObject(),
• getString()

Be able to correctly identify which values will be returned, given a hierarchy and a specific locale, in typical i18n scenarios.

Display understanding of the File class.

Write code to navigate the file system using:

• listRoots()
• listFiles(),
• listFiles(FileFilter),
• listFiles(FileNameFilter),

Display familiarity with the two above filters.

Demonstrate the creation of file instances using:

• File(String),
• File(String, String),
• File(File, String), and,
• createTempFile()

Explain at what point a physical representation of the file is created. Demonstrate the usage of:

• createNewFile() and
• createTempFile()

Also explain the differences between the files created using these two methods.

Determine the current state of a File using the following methods:

• canRead(),
• canWrite(),
• isDirectory(),
• isFile(),
• exists(),
• length(), and,
• lastModified()

Write code to delete files using:

• delete(),
• deleteOnExit()

And, explain how these two methods differ.

Write code to create directory structures using:

• mkdir(), and,
• mkdirs()

And, explain how these two methods differ.

Display understanding of the RandomAccessFile class.

Write code to construct a RandomAccessFileInstance using:

• RandomAccessFile(File, String), and,
• RandomAccessFile(String, String)

Modes in the test are restricted to "r" and "rw" only.

Demonstrate correct usage of:

• read(),
• read*() (excluding Unsigned methods),
• write(),
• write*(),
• seek(), and,
• setLength(),

Use the RandomAccessFile to read and write data in a non-sequential order.

Demonstrate reading character streams by decoding from a byte stream using InputStreamReader as a decorator of an InputStream. Using:

• InputStreamReader(InputStream)
• InputStreamReader(InputStream, String)

Demonstrate encoding to byte streams from a character stream using OutputStreamWriter as a decorator of an Writer. using:

• OutputStreamWriter(OutputStream)
• OutputStreamWriter(OutputStream, String)

Display comprehension of the character based nature of Reader and Writer implementations.

Write code to construct any of the following Reader implementations:

• FileReader,
• StringReader,
• FilterReader,
• BufferedReader,
• LineNumberReader,
• PipedReader and
• PushbackReader

Be able to write code to:

• Use BufferedReader as a decorator, and demonstrate understanding of the buffering mechanism's behaviour using the readLine() method,
• Write code using PipedReader for multi-thread intercommunication, and,
• Demonstrate use of PushbackReader to unread characters from the stream.

Write code to construct any of the following Writer implementations:

• FileWriter,
• StringWriter,
• PrintWriter,
• FilterWriter,
• BufferedWriter and
• PipedWriter

Be able to write code to:

• Use BufferedWriter as a decorator, and demonstrate usage of the newLine() method,
• Use PipedWriter for multi-thread intercommunication, and,
• Use CharArrayReader and CharArrayWriter to perform in-memory streaming of character data.

Finally, be able to identify which of the above Reader/Writer implementations to use in tightly defined circumstances.

Display comprehension of the byte based nature of InputStream and OutputStream implementations.

Write code to construct any of the following InputStream implementations:

• FileInputStream,
• ObjectInputStream,
• PipedInputStream,
• DataInputStream, and,
• PushbackInputStream

Demonstrate usage of these InputStreams by:

• Reading content from a file using FileInputStream, and,
• Deserializing Object instances and primitives from an ObjectInputStream, and,
• Providing inter-thread communication using PipedInputStream
• Using a PushbackInputStream to unread bytes from a stream.

Write code to construct any of the following OutputStream implementations:

• FileOutputStream,
• ObjectOutputStream,
• PipedOutputStream, and,
• DataOutputStream

Demonstrate usage of both OutputStream types by:

• Writing content to a file using FileOutputStream,
• Serializing Object instances and primitives to an ObjectOutputStream and,
• Providing inter-process communication using PipedOutputStream

Write code using ByteArrayInputStream and ByteArrayOutputStream to perform in-memory streaming of byte data.

Be able to identify which of the above InputStream/OutputStream implementations to use in tightly defined circumstances.