Important Notice:

Practice-It will be discontinued as of November 1st, 2024. After this date, the website will remain online for a transitional period, but login will be restricted to University of Washington NetID authentication. This marks the next phase towards the platform's full retirement. Thank you for your use and support of the application over the years.

If you are looking for an alternative, a similar tool, CodeStepByStep, was developed independently by the original author of Practice-It, and is available at codestepbystep.com**

logo Practice-It logo

BJP5 Exercise 18.1: addAllHashIntSet

Language/Type: Java hashing HashIntSet implementing
Related Links:
Author: Marty Stepp (on 2019/09/19)

Write a method named addAll that could be placed inside the HashIntSet class. This method accepts another HashIntSet as a parameter and adds all elements from that set into the current set, if they are not already present. For example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addAll(s2); would change s1 to store [1, 2, 3, 7, 9] in some order.

You are allowed to call methods on your set and/or the other set. Do not modify the set passed in. This method should run in O(N) time where N is the number of elements in the parameter set passed in.

Type your solution here:


This is a partial class problem. Submit code that will become part of an existing Java class as described. You do not need to write the complete class, just the portion described in the problem.

You must log in before you can solve this problem.


Log In

If you do not understand how to solve a problem or why your solution doesn't work, please contact your TA or instructor.
If something seems wrong with the site (errors, slow performance, incorrect problems/tests, etc.), please

Is there a problem? Contact a site administrator.