CHALLENGE ACTIVITY 2.15.1: Reading and outputting strings. Write a program that reads a person's first and last names, separated by a space. Then the program outputs last name, comma, first name. End with newline. Example output if the input is: Maya Jones Jones, Maya.

Following are the program in Java language

import java.util.*; // import package

public class Main  // main function

{

public static void main(String[] args)  // main class

{

    String l_name,f_name; // variable declaration

    Scanner sc6=new Scanner(System.in); // scanner class

   f_name= sc6.next(); // Read input

 l_name=sc6.next(); // Read input

 System.out.print(l_name); // display last name

  System.out.print(","); // display comma

   System.out.println(f_name); // display first name

}

}

Output:

Maya Jones

Jones, Maya

Explanation:

Following are the description of program

a

explanation:

the numbe rof computers would affect the strength of network

solution:

this situation is called an ip conflict.

data from a server is sent in small bits called packets. in an ip conflict, some packets will end up in one computer while some other packets will end up in another computer.

so…overall none of the computers get the data as the original message or picture being sent by the server cannot be retrieved with only half the packets. so it will show up as an error.

thus the final answer is d.