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As ArrayLists don't keep a natural order before you return you will have to call Collections.sort() which will order each string in alphabetical order

When you insert into an ArrayList the "natural" ordering of the types is not accounted for as such the List will not be in alphabetical order but in the order you put the data in. Before you return you will have to call Collections.sort() which will order each string in alphabetical order

If you wish to only use simpler data types (primitive and ArrayList) then the following will apply

As ArrayLists don't keep a natural order before you return you will have to call Collections.sort() which will order each string in alphabetical order

If you wish to only use simpler data types (primitive and ArrayList) then the following will apply

As ArrayLists don't keep a natural order before you return you will have to call Collections.sort() which will order each string in alphabetical order

Firstly HashSet is an object that holds unique objects meaning no two strings can match inside therefore you should use:

A TreeSet can be used to store the remaining words whilst keeping the "natural" ordering

Firstly HashSet is an object that holds unique objects meaning no two strings can match inside therefore you should use:

A TreeSet can be used to store the remaining words whilst keeping the "natural" ordering