Chapter 7.3, Problem 21SCP

Explanation of Solution

Method “swapPairs()” to find the swap the adjacent indexes:

/Definition of method swapParis()

public static void swapPairs(int[] list)

{

    //Traverse the for loop till it reaches the length

    for (int i = 0; i < list.length - 1; i += 2)

    {

        //Call the method swap()

        swap(list, i, i + 1);

    }

}

//Definition of method swap()

public static void swap(int[] list, int i , int j )

{

    ...