Chapter 5, Problem 4PE

Explanation of Solution

//import the required packages

import java.util.*;

//define a class

public class MiddleTerm {

    //define a method

    public static String middle(String str)

    {

        //declare the required variables

        int position;

        int length;

        //condition to check whether the length is odd or even

        if (str.length() % 2 == 0)

        {

            //the value of position is stored

            position = str.length() / 2 - 1;

            //length of the string

            length = 2;

        }

        else

        {

            //the value of position is stored

            position = str.length() / 2;

            //length of the string

            length = 1;

        }

        //return statement

        return str...