True or False questions -- 3 points each
Answer each question with T or F

1. _____ Only one class in a program may have a main method.
   
   
2. _____ Every class, except Object, extends some other class.
   
   
3. _____ An interface defines a list of functions to be implemented.
   
   
4. _____ Every Applet must extend the Applet class defined in java.applet.*
   
   
5. _____ To make a Java object printable, you must override public void toString().
   
   
6. _____ Objects are created with the new keyword.
   
   
7. _____ The try statement is used to deal with Exceptions.
   
   
8. _____ An Event is just another kind of object, with fields and methods.
   
   
9. _____ You cannot subclass (extend) Exception.
   
   
10. _____ In Java, primitives are passed by value, but objects are passed by reference.
    
    
11. _____ An Applet is a kind of Container.
    
    
12. _____ If you don't define a constructor for a class, Java will automatically provide one.
    
    
13. _____ A class that partially implements an interface is an "abstract" class.
    
    
14. _____ Declaring an object in Java automatically creates space for it.
    
    
15. _____ If Poodle is a subclass of Dog, you can assign a value of type Poodle to a variable of type Dog, but only if you cast it to type Dog.
    
    
16. _____ To override an inherited method, you must define a new method with the same name, same number of arguments, same types of arguments, and same return type.
    
    
17. _____ The test  ("ABCD"=="AB"+"CD") gives the boolean result false.
    
    
18. _____ "cat".equals(word) is sometimes preferable to  word.equals("cat").
    
    
19. _____ Every Thread has a start() method.
    
    
20. _____ You can use a static field of a class even if you don't have an object of that class.

Short answer questions -- 5 points each
Fill in the blanks

21. In an Applet, the method responsible for drawing things on the screen is the ____________________ method.
    
    
22. One method that is inherited by every object is the ____________________ method.
    
    
23. To associate an action with a Component, you must attach a(n) ____________________ to the Component.
    
    
24. You can add at most five Components to a(n) ____________________.
    
    
25. CRC stands for ______________________________.
    
    
26. If you are doing a lot of string manipulation, it is more efficient to use the class ____________________ than the class String.
    
    
27. A method whose use is discouraged (because it has been replaced by a newer, better method) is called a ____________________ method.
    
    
28. If you need another thread, but you don't want to extend the Thread class, you can instead implement the ____________________ interface.