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COP3337 Programming II Assignment 3

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COP3337 Programming II Assignment 3 Powered By Docstoc
					Write a Java program to imitate a certain file system and certain utility programs of an operating system.

Design a class called BasicFile to accomplish the following:

File Operations
      Select a file from a file dialog box, using the class JFileChooser.
      List the absolute path of the file
      List all files, directories and subdirectories in the path of the file selected.
      State the size of the selected file.

File security
      Make a backup copy of the selected file, immediately after it has been selected. Use the class
          JFileChooser to select/specify the backup filename. Use the DataInputStream and
          DataOutputStream classes and the readByte and writeByte methods for this activity.

File Contents- account for the following information:
      The number of lines in the file
      The number of words in the file, and
      The number of characters in the file excluding blanks. Numbers must be treated as strings. Use the
         class StreamTokenizer for this. For instance when this option is chosen the program should output
         a line saying something like this:

                   File: xxx.txt has 120 lines, 317 words, 4154 characters

      Search the file line by line for a given string. The output must contain the line number followed by the
       contents of the line that contains the search argument. For instance given the following as input string:
       Java, where Java is the search string the output would be something like this:

                   5: on the island of Java
                   9: The people of JAVA loves jaVa.

         Use the class LineNumberReader for this exercise.

Output/Report
    Write the entire result into an output file called output.txt. Use the JFileChooser class to select or
       specify the filename. Place this file in the directory containing your source code.

Test class
     Write a class called TestBasicFile to test your class. (You may use the one we started in class)

NOTE: Use recursion for the following two items
  1. List all files, directories and subdirectories in the path of the file selected.
  2. Search the file line by line for a given string.

REMEMBER THAT I/O OPERATIONS ARE LIKELY TO THROW EXCEPTION. YOUR CODE
SHOULD TAKE THIS INTO CONSIDERATION.

				
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