added some sample programs related to various aspects of formatting
added one missing file
moved several classes to a new package
Added some examples of using collections framework
added some example usage of floor and ceiling method in TreeMap class
added an example of using wildcards in conjunction with generics
Added an example demonstrating some exotic (!) syntax related to Java
generics
added an example of performing binary search with the help of a custom
comparator
added an example usage of equals() method for a list
Merge branch 'master' of https://github.com/shamim-ahmed/misc-codes