using_hashmap.py

#!/usr/bin/python

import hashmap

# create a mapping of state to abbreviation
states = hashmap.new()
hashmap.set(states, 'Oregon', 'OR')
hashmap.set(states, 'Florida', 'FL')
hashmap.set(states, 'California', 'CA')
hashmap.set(states, 'New York', 'NY')
hashmap.set(states, 'Michigan', 'MI')

# create a basic set of states and some cities in them
cities = hashmap.new()
hashmap.set(cities, 'CA', 'San Francisco')
hashmap.set(cities, 'MI', 'Detroit')
hashmap.set(cities, 'FL', 'Jacksonville')

# add some more cities.

hashmap.set(cities, 'NY', 'New York')
hashmap.set(cities, 'OR', 'Portland')

# print out some cities
print '-' * 10
print "NY state has: %s" % hashmap.get(cities, 'NY')
print "OR state has: %s" % hashmap.get(cities, 'OR')

# print some states
print '-' * 10
print "Michigan's abbreviation is: %s" % hashmap.get(states, 'Michigan')
print "Florida's abbreviation is: %s" % hashmap.get(states, 'Florida')

# do it by using state then cities dict
print '-' * 10
print "Michigan has: %s" % hashmap.get(cities, hashmap.get(states, 'Michigan'))
print "Florida has: %s" % hashmap.get(cities, hashmap.get(states, 'Florida'))

# print every state abbreviation

print '-' * 10
hashmap.list(states)

# print every city in states

print '-' * 10
hashmap.list(cities)

print '-' * 10
# by default ruby says nil when something itsn't there
state = hashmap.get(states, 'Texas')

if not state:
	print "Sorry, no Texas found"

# default values using ||= with the nil result set
# can you do this in one line challenge

city = hashmap.get(cities, 'TX', 'Does not exists')
print "The city for the state 'TX' is: %s" % city

# One line challenge answer
print
print "The city for the state 'TX' is: %s" % hashmap.get(cities, 'TX', 'Does not exists')

print "Collections.orderedDict are dictionaries where the elements are ordered like a lists."
print 
print """Next exercise involved here is to make the values for keys 
of the hashmap as a list, so it found the value will be appended to it,
rather than overwritten"""