Chapter 18, Problem 3E

Explanation of Solution

Method:

//define a method

public boolean equals(Object o) {

   //condition initialized to check whether the value of “o” is the instance of the set.

    if (!(o instanceof HashIntSet)) {

        //return statement

        return false;

    }

    //assign the value

    HashIntSet other = (HashIntSet) o;

   //loop initialized to verify the value of "front"

    for (Node front : elementData) {

        //assign the value

        Node current = front;

        //loop initialized till the value of current is not equal to null

        while (current != null) {

            //condition initialized to check whether the input value is contained in “others”

            if (!other.contains(current...