| 1: | Define encapsulation. |
| 2: | What is the purpose of the get/set methods? |
| 3: | What is a constructor? When is it called? |
| 4: | What is the difference between a public variable and a private variable? |
| 5: | What is the this variable, and what is it used for? |
| 6: | What is composition? |
| 7: | What is garbage collection, and when is it run? |
| 8: | What is an inner class, and what types of inner classes can you create? |
| 9: | What does "pass by reference" mean? |
| 10: | What is significant about the fact that object variables are really references to objects? |