Chapter 10, Problem 6PP

Serialized Telephone Number

Program plan:

Filename: SerializedTelephoneProgram

• Include required header files.
• Define the “SerializedTelephoneProgram” class.
• Define the “main()” method.
  • Create an object for “Scanner” class.
  • Create an instance for “SerializedTelephoneNumber” class.
  • Create an array to read the input data from user.
  • The “writeObject()” method is used to write the array data into binary file.
  • The “readObjects()” method is used to read the array data from binary file.
  • The binary file information is displayed to user.
  • The user enables to change, add, or delete the telephone numbers.
  • When user select the “c”, then get the index number and new telephone number from user and then perform the changing process.
  • When user selects the “a”, then get the new telephone number from user and then performs the adding process.
  • When user select the “d”, then get the index number and telephone number for deletion from user and then perform the deletion process.
  • When user selects the “e”, then end the program.
  • Otherwise, display the error message.

Filename: SerializedTelephoneNumber

• Include required header files.
• Define the “SerializedTelephoneNumber” class.
• Define the “SerializedTelephoneNumber()” constructor.
  • Check the area code and then trim it.
  • Check the exchange code and then trim it.
  • Check the number and then trim it.
• Define the “toString()” method,
  • Convert the area code into integer and then set the area code.
  • Convert the exchange code into integer and then set the exchange code.
  • Convert the number code into integer and then set the number code.
  • Return the telephone number.

Filename: MissingTelephoneInputFileException

• Define the “MissingTelephoneInputFileException” class.
  • Define the constructor to throw an exception.

Filename: InvalidTelephoneFormatException

• Define the “InvalidTelephoneFormatException” class.
  • Define the constructor to throw an exception.