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+38 votes
asked in CSC285_Fall2018 by (8 points)

4 Answers

+26 votes

So Professor Stonedahl recommended to use the Collections.disjoint method in this problem. In order to use that method, you first have to turn the String Arrays into a collection. Going that route will make the problem much easier.

answered by (8 points)
+26 votes

This might help: https://www.geeksforgeeks.org/java-util-collections-disjoint-method-java-examples/

Of course, there are other ways to solve it too...

answered by (8 points)
+7

The second example on that page is helpful if you are unsure how to turn the String Arrays into a collection.

+22 votes

Another hint: the Collections.disjoint method doesn't work for array type

answered by (746 points)
+4

There should be a method in ArrayList class called asList which can help converting an array into a list

+18 votes

You will see in the hint that if you want to use Collections.disjoint() method, you will need to create an arraylist first. Therefore, you need to create 2 arraylists and move all the number from 2 array to new arraylists. Then use Collections.disjoint() to complete this problem.

answered by (8 points)
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