Problems

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Generic Types and Methods - slide 5 : 21

Problems

IntSet, StringSet and ObjectSet suffer from both programming and type problems

Problems with IntSet and StringSet
- Tedious to write both versions: Copy and paste programming.
- Error prone to maintain both versions
Problems with ObjectSet
- Elements of the set must be downcasted in case we need to use some of their specialized operations
- We can create an inhomogeneous set
  - A set of "apples" and "bananas"

Downcasting

Inhomogeneous sets can also be seen as an advantage