AaBbcc AaBbcc AaBbc AaBbcc Aa 1 Normal 1 No Spaci. Heading 1 Heading 2 Questionnaire1 (50 points) 1. What is the Java Class Libraries (API)? 2. Which method is the starting point of every Java program? 3. Why do we instantiate an object of a class? 4. What object can you use to read data into a Java program? 5. What method can you use to display formatted information? 6. What method is used to output some text and then go to the next line? 7. "Scanner" is part of what package? 8. Write a statement that creates a Scanner object called MyInput that reads from the keyboard 9. Name two Scanner method (hint: one that reads a word and one that reads a line) 10. What is a driver client program? 11. Why the data items in a class are called instance variables? 12 Why instance variables are declared private? And how do we modify (read write them? 13. What is a constructor method? 14. How do you distinguish a constructor method from other regular methods? 15. What are set (Mutator) methods? 16. What are get (Accessor) methods? 17. USING TH FOLLOWING CLIENT CLASS WRITE THE CLASSBOOK public class Bookclient public static void main(string) ago) Book now Book "Harry Potter and the obiett i . 3. K. Rowling". Badplay