Chapter 20, Problem 20.20PE

Program Plan Intro

Directory size using Stack

Program plan:

• Import the required packages into the program.
• In the Exercise20_20 class,
  • In the main() method,
    • Read the directory or a file from user.
    • Create an object for Scanner to read inputs.
    • Call getSize() method to get the size of file or directory and then display the result.
  • In the getSize() method.
    • Declare and initialize the variable.
    • Create an object for Stack.
    • Add the file into stack.
    • The while loop executes until the stack size. If yes,
      • Remove the file from the stack.
      • Check whether the directory or file is present. If yes,
        • Assign the removed file into “files”.
        • The for loop executes until the files. If yes,
          • Add the files into stack.
      • Otherwise, calculate the size of files or directory.
    • Return the files or directory size.