Chapter 8, Problem 5PE

a.

Explanation of Solution

Program:

File name: “CategorizeStrings.java”

//Import necessary header files

import java.util.*;

//Define a class named CategorizeStrings

public class CategorizeStrings

{

    //Define a main method

    public static void main (String[] args)

    {

        //Declare the variables and initialize the values

        final int MAX = 20;

        final int CUTOFF = 10;

        final String QUIT = "ZZZ";

        String entry;

        int shortSub = 0;

        int longSub = 0;

        //Create an object for Scanner class

        Scanner input = new Scanner(System.in);

/*Declare an array to store each String in one of two lists -

one list for short Strings that are 10 characters or fewer

and another list for long Strings that are 11 characters or more*/

        String[] longStrings = new String[MAX];

        String[] shortStrings = new String[MAX];

        //Prompt the user to enter a String or QUIT

        System.out.print("Enter a string or " +

         QUIT + " to quit >> ");

        entry = input.nextLine();

        /*While the user does not enter QUIT and enter less than MAX*/

        while(!entry.equals(QUIT) && (shortSub + longSub < MAX))

        {

            //If there are 10 characters or fewer

            if(entry.length() <= CUTOFF)

            {

                //Assign the value

                shortStrings[shortSub] = entry;

                //Increment shortSub

                ++shortSub;

            }

            //Else there are 11 characters or more

            else

            {

                //Assign the value

                longStrings[longSub] = entry;

                //Increment longSub

                ++longSub;

            }

            //If the length of the characters is less than MAX

            if(shortSub + longSub < MAX)

            {

                //Prompt the user to enter a String or QUIT

                System...

b.

Explanation of Solution

Program:

File name: “CategorizeStrings2.java”

//Import necessary header files

import java.util.*;

//Define a class named CategorizeStrings2

public class CategorizeStrings2

{

    //Define a main method

    public static void main (String[] args)

    {

        //Declare the variables and initialize the values

        final int MAX = 20;

        final int CUTOFF = 10;

        final String QUIT = "ZZZ";

        String entry;

        int spaces;

        int oneWordSub = 0;

        int twoWordsSub = 0;

        int threeWordsSub = 0;

        //Create an object for Scanner class

        Scanner input = new Scanner(System.in);

        /*Declare an array to store each String in one of three lists -

        that contain no spaces, one space, or more*/

        String[] oneWord = new String[MAX];

        String[] twoWords = new String[MAX];

        String[] threeWords = new String[MAX];

        //Prompt the user to enter a String or QUIT

        System.out.print("Enter a string or " +

         QUIT + " to quit >> ");

        entry = input.nextLine();

        //While the user does not enter QUIT and enter the //String less than than MAX

        while(!entry.equals(QUIT) && (oneWordSub + twoWordsSub + threeWordsSub < MAX))

        {

            //Assign the value 0 to spaces

            spaces = 0;

//For loop to be executed until x exceeds the string //length

            for(int x = 0; x < entry.length(); ++x)

            {

                //If the character contains a space

                if(entry.charAt(x) == ' ')

                    //Increment spaces

                    ++spaces;

            }

            //If the entered Strings contain no spaces

            if(spaces == 0)

            {

                //Assign the value

                oneWord[oneWordSub] = entry;

                //Increment oneWordSub

                ++oneWordSub;

            }

            //Else if the entered Strings contain one space

            else

            if(spaces == 1)

            {

                //Assign the value

                twoWords[twoWordsSub] = entry;

                //Increment twoWordsSub

                ++twoWordsSub;

            }

//Else the entered Strings contain more than one //space

            else

            {

                //Assign the value

                threeWords[threeWordsSub] = entry;

                //Increment threeWordsSub

                ++threeWordsSub;

            }

            //If the length of all the entered Strings is less //than MAX

            if(oneWordSub + twoWordsSub + threeWordsSub < MAX)

            {

                //Prompt the user to enter a String or QUIT

                System...