Chapter 12, Problem 12.16PE

Program Plan Intro

Program to replace the text in file

Program plan:

• Import the required packages into the program.
  • Create a class Exercise12_16 to remove the text from file.
  • In the main() method,
    • Check whether source file exists. If yes, display the error message.
    • Assign the argument 0 as source file.
    • Check whether source file exists. If yes,
      • Display the error message.
    • Create an object for StringBuilder.
    • In try-with-resource,
      • Read text from the file and save it in a string builder.
      • Loop executes until the input from file. If yes,
        • Assign the input from file
        • Call replaceAll() method to replace the old string to new string.
        • Append the new line.
    • In try-with-resource,
      • Create an object for PrinterWriter.
      • Write the new string to file.