Chapter 7, Problem 2E

Explanation of Solution

Method “range()” to return the range of values:

//Definition of class

public class Text {

    //Definition of main method

    public static void main(String[] args)

    {

        //Create an array

        int[] arr = {36, 12, 25, 19, 46, 31, 22};

        //Call the method range()

        System.out.println(range(arr));

    }

    //Definition of method range()

    public static int range(int[] a)

    {

        //Decalre and initialize the required variable

        int minVal = 0;

        int maxVal = 0;

        //Traverse the loop till it reaches the length

        for (int i = 0; i < a.length; i++)

        {

//Condition to determine the minimum value

            if (i == 0 || a[i] < minVal)

            {

                //Assign minVal to "a[i]"

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