Writing programs to solve the Programming Projects helps to solidify your understanding of the material and demonstrates how the chapter’s concepts are applied. (As noted in the Introduction, qualified instructors may obtain completed solutions to the Programming Projects on the publisher’s Web site.)
Write a noDups() method for the HighArray class of the highArray. java program (Listing 2.3). This method should remove all duplicates from the array. That is, if three items with the key 17 appear in the array, noDups() should remove two of them. Don’t worry about maintaining the order of the items. One approach is to first compare every item with all the other items and overwrite any duplicates with a null (or a distinctive value that isn’t used for real keys). Then remove all the nulls. Of course, the array size will be reduced.
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