1. pick4winner.py
2. search.py
3. string_compare.py
4. string_iteration.py
5. string_methods.py

# Simulate Pick 4 lottery game - selecting ping pong balls at random
# Modified to figure out if the user entered the winning number
# Why couldn’t we solve this before?
# What are valid choices for numbers?
# By CSCI111

from random import *

# define constants that are easy to change so that our
# program is flexible
NUM_PICKS = 4
MIN_VALUE = 0
MAX_VALUE = 9

NUMFORMAT="####"

print("Let's Play the Pick4 Lottery!")

# start with a hardcoded number before getting user input
#pickedNum = "0000"

pickedNum = input("What is your pick? (Format: " + NUMFORMAT + ") ")

######  TODO: handle bad input ######

# 

print("The winning number is", end=" ")

winNum = ""

for x in range(NUM_PICKS):
    randnum = randint(MIN_VALUE, MAX_VALUE)
    # concatenate the next random number to the winning number
    winNum = winNum + str(randnum)
    
print( winNum)

# check if the winning number equals the picked number
if winNum == pickedNum:
    print("You won!!!! Let's be friends!")
else:
    print(":( wah wah")

# Demonstrate use of "in" operator for strings as well
# as an if test
# Sara Sprenkle

PYTHON_EXT = ".py"

filename = raw_input("Enter a filename: ")

if filename[-(len(PYTHON_EXT)):] == PYTHON_EXT:
    print "That's a name for Python script"

if PYTHON_EXT in filename:
    print "That filename contains", PYTHON_EXT

# QUESTION: SHOULD THIS BE AN IF/ELIF?
# What is the impact of that change?

# Program compares two strings, updated to handle casing.
# by Sara Sprenkle

str1 = input("Enter a string to compare: ")
str2 = input("Compare '" + str1 + "' with what string? ")

print("-" * 40)

lowerStr1 = str1.lower()
lowerStr2 = str2.lower()

# use the lower-cased strings in the comparison but the *original* strings
# in the display
if lowerStr1 < lowerStr2 :
    print("Alphabetically,", str1, "comes before", str2 + ".")
elif lowerStr1 > lowerStr2:
    print("Alphabetically,", str2, "comes before", str1 + ".")
else:
    print("You tried to trick me!", str1, "and", str2, "are the same word!")

# Iterating through strings
# by Sara Sprenkle

phrase = input("Enter a phrase: ")

print("Iterate through phrase, using characters:")

for char in phrase:
    print(char)
    
print()

print("Iterate through phrase, using positions of characters:")
for pos in range(len(phrase)):
    print(pos, phrase[pos])

# Manipulate strings, using methods
# by Sara Sprenkle

sentence = input("Enter a sentence to mangle: ")

length = len(sentence)

# Question: What does the statement below do?
print("*", sentence.center(int(length*1.5)), "*")

upperSentence = sentence.upper()
print(upperSentence)
print(sentence)

print("Uppercase: ", sentence.upper())
print()
print("Lowercase: ", sentence.lower())
print()

# Answer before running...
print("Did sentence change?: ", sentence)