Chapter 21, Problem 10PE

Program Plan Intro

To swap two files

Program plan:

• Import necessary packages.
• Create a class “FileSwapperTest”,
  • Define the “main()” method.
    • Execute “try” statement,
      • Create a “Scanner” object.
      • Prompt the user to enter full path of the first file.
      • Get the full path of first file from the user.
      • Prompt the user to enter full path of the second file.
      • Get the full path of second file from the user.
      • Call the method “swapPaths()”.
    • Catch if exception occurs,
      • Print the exception.
  • Define the method “swapPaths()”,
    • Check if the files have different paths and both exists.
      • Initialize the string variables for file name and extension.
      • Create temporary file path and directory.
      • Get the file into temporary path.
      • Get the path into temporary path.
      • Get the parent path of first file.
      • Get the parent path of second file.
      • Call the method “copy()”.
      • Call the method “delete()”.
      • Call the method “copy()”.
      • Call the method “delete()”.
      • Call the method “copy()”.
      • Call the method “delete()”.
      • Call the method “copy()”.