1. Name and describe the three principles of object-oriented programming. 2. What is the difference between a class’s implementation and client interface? 3. What is the difference between a class and...

1. Name and describe the three principles of object-oriented programming.

2. What is the difference between a class’s implementation and client interface?

3. What is the difference between a class and an interface?

4. What advantages does a Java interface offer a programmer?

5. All Java classes automatically extend what class in the Java Class Library?