Review questions for test 2:

1) Define the following words:

 - polymorphism
 - inheritance
 - dynamic binding
 - scope
 - variable shadowing
 - this()
 - super()
 - constructor chaining
 - toString
 - .equals
 - reference
 - object
 - class


2) Write the method 
  public String reverse(String s)
 which returns the String backwards.
 You may assume that s is not null.
 You must use recursion ONLY.

{



3) Write the method
    public boolean isPalindrome(String s)
  which returns true if and only if s is a palindrome, false otherwise.
 You may assume that s is not null.
 You must use recursion ONLY.
 Remember that a palindrome is a String that is the same forwards as
 backwards.

4) Write the method
      public void printTwoSquares(int a, int b)
  which prints out two squares of # marks, one of size a, one
  of size b, that are next to each other.
  For example,

   printTwoSquares(3,5)
  would print

  ### #####
  ### #####
  ### #####
      #####
      #####

 5)  Given the following class:
    public class Clock
    {
        int time;
        public Clock(int time)
         {
           this.time=time;
         }
    }
    Write the class AlarmClock, which 
       o is a subclass of Clock
       o has an int for alarmTime
       o has a constructor which takes both the alarmTime and the time,
         uses the super constructor to initalize time, and then intializes
         alarmTime
       o has a default constructor which constructor chains with 0 for
         the time and 0 for the alarm time
       o has an accessor and modifier for alarmTime
       
6) Do you understand all of the concepts and how to code them from p2 phase I?
   Just memorizing the code is *NOT* the way to go.