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Answers and rating deltas for
design an abstract class so that any one can extend it and use the extended class polymorphically
| Author | Votes | Δ |
|---|---|---|
| Jägermeister | 4 | +2.37 |
| Marco13 | 2 | -2.37 |
Last visited: Nov 18, 2015, 8:27:45 PM