hw finished

challenges/01-calc.py

@@ -1,4 +1,44 @@
-# Use the `input()` function to prompt a user to enter something.
-# input() always returns a string value. If you ever want someone
-# to enter a number you have to use the `int()` function to convert
-# what they typed in to a string.
+is_running = True
+while is_running:
+    # display math choices and ask user to choose one
+    prompt = ">"
+    print("Hello friend!")
+    print('Tell me what kind of math you would like to do.')
+    print('Possible choices: add, subtract, multiply, and divide.')
+    math_choice = input(prompt)
+    print(f"Math choice: {math_choice}")
+
+    # ask the user to input two numbers
+    print('Excellent math choice! Enter the first number to use:')
+    number_one = input(prompt)
+    print('Now enter a second number:')
+    number_two = input(prompt)
+
+    # convert input to integers
+    try:
+        number_one = int(number_one)
+        number_two = int(number_two)
+
+        # perform the selected math operation
+        if math_choice == 'add':
+            print(f"{number_one} + {number_two} = {number_one + number_two}")
+        elif math_choice == 'subtract':
+            print(f"{number_one} - {number_two} = {number_one - number_two}")
+        elif math_choice == 'multiply':
+            print(f"{number_one} * {number_two} = {number_one * number_two}")
+        elif math_choice == 'divide':
+            if number_two == 0:
+                print("Error: Cannot divide by zero!")
+            else:
+                print(f"{number_one} / {number_two} = {number_one / number_two}")
+        else:
+            print(f"I'm sorry, '{math_choice}' isn't a valid math operation.")
+
+    except ValueError:
+        print('That wasn\'t a valid number!')
+
+    # ask user if they would like to continue
+    print('Would you like to continue doing more math problems? (y/n)')
+    should_quit = input(prompt)
+    if should_quit.lower() == 'n':
+        is_running = False

challenges/02-reverse.py

@@ -6,3 +6,14 @@
 # several ways to reverse a string, and it's a good read!
 #
 # http://www.techbeamers.com/essential-python-tips-tricks-programmers/?utm_source=mybridge&utm_medium=blog&utm_campaign=read_more#tip1
+
+string = 'Forward'
+reverse_string = ''
+
+def reverse(string):
+    global reverse_string
+    for i in string:
+        reverse_string = i + reverse_string
+    return reverse_string
+
+print(reverse(string))

challenges/03-bank.py

@@ -1,3 +1,36 @@
 print("Welcome to Chase bank.")
-print("Have a nice day!")
+
+balance = 4000
+
+
+def bank_action():
+    global balance
+    user_choice = input('What would you like to do? (deposit, withdraw, check_balance): \n')
+    # global user_choice
+    if user_choice == 'deposit':
+        deposit = int(input('Please enter the amount you\'d like to deposit: \n'))
+        balance += deposit
+        print(f'Your balance after depositing is {balance}')
+        # continue_banking()
+        return balance
+    elif user_choice == 'withdraw':
+        withdraw = int(input('Please enter the amount you\'d like to withdraw: \n'))
+        balance -=  withdraw
+        print(f'Your balance after withdrawing is {balance}')
+        # continue_banking()
+        return balance
+    elif user_choice == 'check_balance':
+        print(f'Your current balance is {balance}')
+        # continue_banking()
+    else:
+        print('Please select to deposit, withdraw, or check_balance')
+        bank_action()
+
+bank_action()
+
+continue_banking = input('Can we assist you with anything else? (yes/no): \n')
+if continue_banking == 'no':
+    print('Have a great day!')
+elif continue_banking == 'yes':
+    bank_action()
 

challenges/04-alphabetical.py

@@ -1,3 +1,10 @@
 # You'll need to use a couple of built in functions to alphabetize a string. 
 # Try to avoid looking up the exact answer and look at built in functions for
 # lists and strings instead.
+
+
+string = input('Please enter a string to sort in alphabetical order!: \n')
+print(string)
+alphabetic = sorted(string.lower())
+str = ''
+print(str .join(alphabetic))