1) A String variable , fullName, contains a name in one of two formats:

last name , first name (comma followed by a blank), or

first name last name (single blank)

Extract the first name into the String variable firstName and the last name into the String variable lastName. Assume the variables have been declared and fullName already initialized . You may also declare any other necessary variables .

2)

Write a loop that reads strings from standard input where the string is either "land", "air", or "water". The loop terminates when "" (five x characters ) is read in. Other strings are ignored. After the loop, your code should print out 3 lines: the first consisting of the string "land:" followed by the number of "land" strings read in, the second consisting of the string "air:" followed by the number of "air" strings read in, and the third consisting of the string "water:" followed by the number of "water" strings read in. Each of these should be printed on a separate line.

ASSUME the availability of a variable , stdin, that references a Scanner object associated with standard input.

// Scanner class is defined to allow the program receive user input

import java.util.Scanner;

// The class name Solution is defined

public class Solution {

   // object stdin of Scanner is declared static and private

   // it is static

   // so that it can be called from questionTwo method

   private static Scanner stdin = new Scanner(System.in);

   // main method to begin program execution

   public static void main(String args[]) {

       // prompt the user to enter full name

       System.out.println("Enter the fullname: ");

       // the received name is saved to userInput

       String userInput = stdin.nextLine();

       // empty string for firstName

       String firstName = "";

       // empty string for lastName

       String lastName = "";

       // if the userInput contain comma

       // then it is splitted with comma

       // else if it doesn't contain comma

       // it is splitted with space

       if(userInput.contains(",")){

           String[] array = userInput.split(",");

           // lastName is the name before the comma

           lastName = array[0];

           // firstName is the name after the comma

           firstName = array[1];

       } else{

           String[] array = userInput.split(" ");

           // firstName is the name before the space

           firstName = array[0];

           // lastName is the name after the space

           lastName = array[1];

       }

       // firstName and last is printed

       System.out.println("FirstName: " + firstName + "\nLastName: " + lastName);

       // beginning of second part of question

       // method for questionTwo is called

       questionTwo();

   }

   // solution to questionTwo

   public static void questionTwo(){

       // the userword is declared as empty string

       String userword = "";

       // landCounter is set to 0

       int landCounter = 0;

       // airCounter is set to 0

       int airCounter = 0;

       // waterCounter is set to 0

       int waterCounter = 0;

       // while to continue receiving user input

       // as long as it is not "xxxxx"

       while(true) {

           // The user is prompt to enter a word

           System.out.println("Enter your word again: ");

           // the received word is saved to userword

           userword = stdin.nextLine();

           /* Block of if-statement to increment

           counter based on the input value of userword

           if userword is "xxxxx", the loop terminate

           */

           if(userword.equals("land")){

               landCounter += 1;

           }

           if(userword.equals("air")){

               airCounter += 1;

           }

           if(userword.equals("water")){

               waterCounter += 1;

           }

           if (userword.equals("xxxxx")){

               break;

           }

       }

       // Display the number of land, air and water in three lines

       System.out.println("land: " + landCounter + "\nair: " + airCounter + "\nwater: " + waterCounter);

   }

}

Explanation:

The code is well commented. There is an attach image of when the code is executed.

i think the answer is a or d

b. xor is the correct answer