#Author:  James Tam
#Version: October 23, 2025

#Incorrect creation
aSet = {}
print("Incorrect, not a set created", type(aSet))

#Creation (done correctly)
set1 = set()
set1.add("1")
set1.add(True)
set1.add(2)
set1.add(3)
set1.add(3)  #Duplicate not added

#Iterating through a set
input("\nSet created press enter to see set iteration\n")
for element in set1:
    print(element,end=" ")


input("\nPress enter to see a discard\n")
#Discarding (A Single) Specified Element
set2 = {"Red","Blue","Green"}
print(set2)
set2.discard("Red")
set2.discard("Orchre")
print(set2)

input("\nPress enter to see a remove operation\n")
set2 = {"Red","Blue","Green"}
set2.remove("Red")
print(set2)

#Runtime error results if the element is not already in the set
#set2.remove("Orcher jelly")
input("\nPress enter to see an element popped out of the set\n")
set2 = {"Red","Blue","Green"}
set2.pop()
print(set2)

input("\nPress enter to see one set become updated by another set\n")
set1 = {"Red","Blue","Green"}
set2 = {"Red","Pink","Purple"}
print(set1,set2)
set1.update(set2)
print(set1,set2)

input("\nPress enter to see iteration and new elements added to a set")
set3 = set()
for i in range(0,4,1):
    set3.add(i)
print(set3)


input("\nPress enter to see set membership: 1) element in set  2) element not in set")
set3 = {1,2,3}
print(set3)
if 1 in set3:
   print("1 in set3")
if 888 in set3:
   print("888 in set3")