Added U1 to U3 code files

Author: ana2bell

u1m2_basic_programming_principles.py

@@ -0,0 +1,29 @@
+###########
+# bad code
+###########
+a = 3.1
+b = 2.2
+c = a * b * b
+
+###########
+# good code
+###########
+pi = 3.1
+radius = 2.2
+circle_area = pi * radius * radius
+
+###########
+# bad comments
+###########
+pi = 3.1
+radius = 2.2
+# multiply pi times the radius times the radius
+circle_area = pi * radius * radius
+
+###########
+# good comments
+###########
+pi = 3.1
+radius = 2.2
+# use the formula to calculate the area of a circle
+circle_area = pi * radius * radius

u2m1_introducing_python.py

@@ -0,0 +1,7 @@
+3+2
+4/5
+print(3+2)
+print(4/5)
+
+print(6+7)
+print(3/6)

u2m2_giving_names_to_things.py

@@ -0,0 +1,7 @@
+3+2
+4/5
+print(3+2)
+print(4/5)
+
+print(6+7)
+print(3/6)

u2m4_exercise_convert_to_hours_and_minutes.py

@@ -0,0 +1,12 @@
+# initializations
+minutes_to_convert = 30
+
+# calculations
+hours = int(minutes_to_convert / 60)
+minutes = minutes_to_convert % 60
+
+# outputs
+print("Hours")
+print(hours)
+print("Minutes")
+print(minutes)

u3m1_string_objects.py

@@ -0,0 +1,10 @@
+text = "MY 1ST TIME PLAYING WITH STRINGS! &OSIDJOIF@$#@NLOIS*@^%@$ASIDU"
+
+without_cat = text[0:33:1]
+print(without_cat)
+
+middle_bit = without_cat[12:len(without_cat):1]
+print(middle_bit)
+
+proper_sentence = middle_bit.capitalize()
+print(proper_sentence)

u3m2_advanced_string_operations.py

@@ -0,0 +1,14 @@
+phrase = "Eek, two snake eyes"
+num = "1"
+
+num_repeat = num * 4
+print(num_repeat)
+
+str_not_num = num_repeat.replace("1", "one")
+print(str_not_num)
+
+together = phrase + ": " + str_not_num
+print(together)
+
+num_times = together.count("neon")
+print(num_times)

u3m3_simple_error_messages.py

@@ -0,0 +1,6 @@
+name = "Ana"
+print(name[0])
+print(name[1])
+print(name[2])
+print(name[3])
+print(name[-1])

u3m4_tuple_objects.py

@@ -0,0 +1,12 @@
+initials = ("AA", ("BB", ("CC", "CZ"), "BZ"), "AZ")
+print(initials[1])
+print(initials[1][1])
+print(initials[1][1][1])
+
+summer = "hot"
+winter = "cold"
+print(summer)
+print(winter)
+(summer, winter) = (winter, summer)
+print(summer)
+print(winter)

u3m5_interacting_with_the_user.py

@@ -0,0 +1,32 @@
+print("hello")
+print(5*2+3**5)
+print("new"+"ton")
+
+top = 22
+bottom = 7
+pi_approx = top/bottom
+print(pi_approx)
+print(top,"/",bottom,"=",pi_approx)
+to_print = str(top)+"/"+str(bottom)+"="+str(pi_approx)
+print(to_print)
+
+# input stored as a string - concatenate
+a = input("Enter one number: ")
+b = input("Enter another number: ")
+print(a+b)
+
+# input stored as a string - convert to int
+a = int(input("Enter one number: "))
+b = int(input("Enter another number: "))
+print(a+b)
+
+#############
+# quick check
+#############
+
+# get user input
+day = input("What day of the week? ")
+num = int(input("How many times? "))
+
+# show the phrase
+print("It's", day*num)

u3m6_exercise_name_mashup.py

@@ -0,0 +1,30 @@
+# get user input
+name1 = input("Enter one name: ")
+name2 = input("Enter another name: ")
+
+space = name1.find(" ")
+name1_first = name1[0:space]
+name1_last = name1[space+1:len(name1)]
+space = name2.find(" ")
+name2_first = name2[0:space]
+name2_last = name2[space+1:len(name2)]
+
+# find combinations
+name1_first_1sthalf = name1_first[0:int(len(name1_first)/2)]
+name1_first_2ndhalf = name1_first[int(len(name1_first)/2):len(name1_first)]
+name1_last_1sthalf = name1_last[0:int(len(name1_last)/2)]
+name1_last_2ndhalf = name1_last[int(len(name1_last)/2):len(name1_last)]
+
+name2_first_1sthalf = name2_first[0:int(len(name2_first)/2)]
+name2_first_2ndhalf = name2_first[int(len(name2_first)/2):len(name2_first)]
+name2_last_1sthalf = name2_last[0:int(len(name2_last)/2)]
+name2_last_2ndhalf = name2_last[int(len(name2_last)/2):len(name2_last)]
+
+new_name1_first = name1_first_1sthalf + name2_first_2ndhalf
+new_name1_last = name1_last_1sthalf + name2_last_2ndhalf
+new_name2_first = name2_first_1sthalf + name1_first_2ndhalf
+new_name2_last = name2_last_1sthalf + name1_last_2ndhalf
+
+# print results
+print(new_name1_first, new_name1_last)
+print(new_name2_first, new_name2_last)