(Intro to Java) Tracking Customers This program will read in a series of names, along with an associated gender, from an input file of unknown length. The program uses a while loop to read in each name from the file by using the hasNextLine() method from the Scanner class. Please use a while loop for practice, although you could also write this assignment using a for loop to read from the file. As you read in each name, you will store it in an array, along with a title (Mr. or Ms. or Mx.) dependent on the stated gender. The first line of each file will contain the number of names contained in the file (hint: this is the same structure as the input file in your assignment 18.2). Additionally, this program should have two methods, as follows: The first method: The method is named extractInitial It takes a String parameter It extracts the first letter (initial) from the String parameter It returns a char for the initial. Note: You must write a complete Javadoc for this method to receive full credit. The second method: The method is named printArray It takes an array of Strings as a parameter It has a second String parameter which is a file name It opens up a new PrintWriter and connects it to the file passed in as a parameter It prints out the array to the file using a for loop It closes the PrintWriter It returns nothing Hint: You will need to update the method signature to throw an IOException. Note: You must write a complete Javadoc for this method to receive full credit. Part of the trick of this assignment will be to determine the appropriate time to call each method. Copy and paste the starter code below into a new file called TrackCustomers.java /** * @author * */ import java.util.Scanner; //add an import statement here public class TrackCustomers { /** * Write the javadoc comment for extractInitial here */ public static char extractInitial(String customer) { return '\0'; //replace this line when you write the method } /** * Write the javadoc comment for printArray here */ public static void printArray(String[] customers) //update signature of method { return; } public static void main(String[] args) { String first_name, last_name, gender; final int ARRAY_SIZE; final String INPUT_FILE; final String OUTPUT_FILE; System.out.println("Welcome to Customer Tracker!\n"); //Use a while loop and hasNextLine() - required! } } Sample output: Welcome to Customer Tracker! Enter the name of the input file: customers1.txt Enter the name of the output file: updated.txt Thank you! The customer information has been written to updated.txt! Please open the file to see the information. Note that the user should be able to enter any files names they want. The above file names are just an example. Example input file: 15 Barbara Stanton F Timoteo Martinez M Ally Gu O Xing Xiao M Dung Kim F Tanya White F Alan Ngo M Abir Fadel M Nataly Luna F Charles Atkinson M Stacey Cahill O Stephanie Teatro F Ping Li M June Park F Binh Nguyen M Corresponding output file: Ms. B. Stanton Mr. T. Martinez Mx. A. Gu Mr. X. Xiao Ms. D. Kim Ms. T. White Mr. A. Ngo Mr. A. Fadel Ms. N. Luna Mr. C. Atkinson Mx. S. Cahill Ms. S. Teatro Mr. P. Li Ms. J. Park Mr. B. Nguyen Example input file: 19 Jiming Wu M James Brown M Liana Perez F Xing Li M Stacey Cahill O Mohammed Abbas M Kumari Chakrabarti F Shakil Smith M Jung Ahrin O Pedro Martinez M Madison Wong O Tamara White F Alvin Ngo M Abir Fadel M Brad Feinman M Xiaohang Yue M Triana Brown F Anh Bao F Katiya Ivankova F Corresponding output file: Mr. J. Wu Mr. J. Brown Ms. L. Perez Mr. X. Li Mx. S. Cahill Mr. M. Abbas Ms. K. Chakrabarti M. S. Smith Mx. J. Ahrin Mr. P. Martinez Mx. M. Wong Ms. T. White Mr. A. Ngo Mr. A. Fadel Mr. B. Feinman Mr. X. Yue Ms. T. Brown Ms. A. Bao Ms. K. Ivankova

(Intro to Java) Tracking Customers This program will read in a series of names, along with an associated gender, from an input file of unknown length. The program uses a while loop to read in each name from the file by using the hasNextLine() method from the Scanner class. Please use a while loop for practice, although you could also write this assignment using a for loop to read from the file. As you read in each name, you will store it in an array, along with a title (Mr. or Ms. or Mx.) dependent on the stated gender. The first line of each file will contain the number of names contained in the file (hint: this is the same structure as the input file in your assignment 18.2). Additionally, this program should have two methods, as follows: The first method: The method is named extractInitial It takes a String parameter It extracts the first letter (initial) from the String parameter It returns a char for the initial. Note: You must write a complete Javadoc for this method to receive full credit. The second method: The method is named printArray It takes an array of Strings as a parameter It has a second String parameter which is a file name It opens up a new PrintWriter and connects it to the file passed in as a parameter It prints out the array to the file using a for loop It closes the PrintWriter It returns nothing Hint: You will need to update the method signature to throw an IOException. Note: You must write a complete Javadoc for this method to receive full credit. Part of the trick of this assignment will be to determine the appropriate time to call each method. Copy and paste the starter code below into a new file called TrackCustomers.java /** * @author * */ import java.util.Scanner; //add an import statement here public class TrackCustomers { /** * Write the javadoc comment for extractInitial here */ public static char extractInitial(String customer) { return '\0'; //replace this line when you write the method } /** * Write the javadoc comment for printArray here */ public static void printArray(String[] customers) //update signature of method { return; } public static void main(String[] args) { String first_name, last_name, gender; final int ARRAY_SIZE; final String INPUT_FILE; final String OUTPUT_FILE; System.out.println("Welcome to Customer Tracker!\n"); //Use a while loop and hasNextLine() - required! } } Sample output: Welcome to Customer Tracker! Enter the name of the input file: customers1.txt Enter the name of the output file: updated.txt Thank you! The customer information has been written to updated.txt! Please open the file to see the information. Note that the user should be able to enter any files names they want. The above file names are just an example. Example input file: 15 Barbara Stanton F Timoteo Martinez M Ally Gu O Xing Xiao M Dung Kim F Tanya White F Alan Ngo M Abir Fadel M Nataly Luna F Charles Atkinson M Stacey Cahill O Stephanie Teatro F Ping Li M June Park F Binh Nguyen M Corresponding output file: Ms. B. Stanton Mr. T. Martinez Mx. A. Gu Mr. X. Xiao Ms. D. Kim Ms. T. White Mr. A. Ngo Mr. A. Fadel Ms. N. Luna Mr. C. Atkinson Mx. S. Cahill Ms. S. Teatro Mr. P. Li Ms. J. Park Mr. B. Nguyen Example input file: 19 Jiming Wu M James Brown M Liana Perez F Xing Li M Stacey Cahill O Mohammed Abbas M Kumari Chakrabarti F Shakil Smith M Jung Ahrin O Pedro Martinez M Madison Wong O Tamara White F Alvin Ngo M Abir Fadel M Brad Feinman M Xiaohang Yue M Triana Brown F Anh Bao F Katiya Ivankova F Corresponding output file: Mr. J. Wu Mr. J. Brown Ms. L. Perez Mr. X. Li Mx. S. Cahill Mr. M. Abbas Ms. K. Chakrabarti M. S. Smith Mx. J. Ahrin Mr. P. Martinez Mx. M. Wong Ms. T. White Mr. A. Ngo Mr. A. Fadel Mr. B. Feinman Mr. X. Yue Ms. T. Brown Ms. A. Bao Ms. K. Ivankova

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

(Intro to Java)

Tracking Customers

This program will read in a series of names, along with an associated gender, from an input file of unknown length.
The program uses a while loop to read in each name from the file by using the hasNextLine() method from the Scanner class.
- Please use a while loop for practice, although you could also write this assignment using a for loop to read from the file.
As you read in each name, you will store it in an array, along with a title (Mr. or Ms. or Mx.) dependent on the stated gender.
The first line of each file will contain the number of names contained in the file (hint: this is the same structure as the input file in your assignment 18.2).
Additionally, this program should have two methods, as follows:
The first method:
- The method is named extractInitial
- It takes a String parameter
- It extracts the first letter (initial) from the String parameter
- It returns a char for the initial.
- Note: You must write a complete Javadoc for this method to receive full credit.
The second method:
- The method is named printArray
- It takes an array of Strings as a parameter
- It has a second String parameter which is a file name
- It opens up a new PrintWriter and connects it to the file passed in as a parameter
- It prints out the array to the file using a for loop
- It closes the PrintWriter
- It returns nothing
- Hint: You will need to update the method signature to throw an IOException.
- Note: You must write a complete Javadoc for this method to receive full credit.
Part of the trick of this assignment will be to determine the appropriate time to call each method.
Copy and paste the starter code below into a new file called TrackCustomers.java

/**
* @author
*
*/
import java.util.Scanner;

//add an import statement here

public class TrackCustomers

{
   /**
   * Write the javadoc comment for extractInitial here
   */
   public static char extractInitial(String customer)
   {
       return '\0'; //replace this line when you write the method
   }

   /**
   * Write the javadoc comment for printArray here
   */
   public static void printArray(String[] customers) //update signature of method
   {
       return;
   }

   public static void main(String[] args)
   {

String first_name, last_name, gender;

final int ARRAY_SIZE;

final String INPUT_FILE;

final String OUTPUT_FILE;

System.out.println("Welcome to Customer Tracker!\n");

       //Use a while loop and hasNextLine() - required!


   }
}

Sample output:

Welcome to Customer Tracker!

Enter the name of the input file: customers1.txt

Enter the name of the output file: updated.txt

Thank you! The customer information has been written to updated.txt!

Please open the file to see the information.

Note that the user should be able to enter any files names they want. The above file names are just an example.

Example input file:

Barbara Stanton
F
Timoteo Martinez

Ally Gu

Xing Xiao

Dung Kim

Tanya White

Alan Ngo

Abir Fadel

Nataly Luna

Charles Atkinson

Stacey Cahill

Stephanie Teatro

Ping Li

June Park

Binh Nguyen

Corresponding output file:

Ms. B. Stanton
Mr. T. Martinez
Mx. A. Gu
Mr. X. Xiao
Ms. D. Kim
Ms. T. White
Mr. A. Ngo
Mr. A. Fadel

Ms. N. Luna

Mr. C. Atkinson

Mx. S. Cahill

Ms. S. Teatro

Mr. P. Li

Ms. J. Park

Mr. B. Nguyen

Example input file:

Jiming Wu

James Brown

Liana Perez

Xing Li

Stacey Cahill

Mohammed Abbas

Kumari Chakrabarti

Shakil Smith

Jung Ahrin

Pedro Martinez

Madison Wong

Tamara White

Alvin Ngo

Abir Fadel

Brad Feinman

Xiaohang Yue

Triana Brown

Anh Bao

Katiya Ivankova

Corresponding output file:

Mr. J. Wu

Mr. J. Brown

Ms. L. Perez

Mr. X. Li

Mx. S. Cahill

Mr. M. Abbas

Ms. K. Chakrabarti

M. S. Smith

Mx. J. Ahrin

Mr. P. Martinez

Mx. M. Wong

Ms. T. White

Mr. A. Ngo

Mr. A. Fadel

Mr. B. Feinman

Mr. X. Yue

Ms. T. Brown

Ms. A. Bao

Ms. K. Ivankova

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