1. What is written on a CRC card? 2. List the behaviors of the class VerticalLine, as given, that would appear on a CRC card for that class. 3. Why do designers use index cards for CRC cards? 4. Why...

1. What is written on a CRC card?

2. List the behaviors of the class VerticalLine, as given, that would appear on a CRC card for that class.

3. Why do designers use index cards for CRC cards?

4. Why do designers separate the software’s specification from its implementation?

5. What is abstraction, and how do software designers use it?