Chapter 12, Problem 12.20PE

Program Plan Intro

Remove package statement

Program plan:

• Import the required packages into the program.
• Declare the required variables.
• Get the file input path from the user as the command line arguments.
• Check the input argument value is valid one or not.
  • Check the input argument path exists or not.
  • Check the input path is a directory or not.
    • If it is not a directory, then display the error message.
    • If it is a directory, then list the file content of the directory.
      • If the file contents are directory, then get the directory name starting with “chapter” and prepare to remove the package statement.
      • Call the “removePackageStatementFromFilesInDirectory()” method to remove the package statement.
• The “removePackageStatementFromFilesInDirectory()” method lists the files available in each directory.
  • This method gets the files name that end with “.java”.
  • This method calls the “removePackageStatment()” method to remove the package name in each file that end with the name “.java”.
• The “removePackageStatment()” method reads each file that ends with the name “.java” and removes the package name “package chapteri;”at the beginning of each file.