python-learning/16_while_loop.py at main · shaikmunna-data/python-learning · GitHub

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#======================================================================================
#                               WHILE LOOPS
#--------------------------------------------------------------------------------------
# A while loop keeps running as long as a condition is True.
# When the condition becomes False, the loop stops.
#======================================================================================

#--------------------------------------------------------------------------------------
# while loop categories
#--------------------------------------------------------------------------------------
# 1)while condition--> used when repetition depends on a condition
# 2)while True--> runs forever unless stopped using break or ctrl + c(Risky)
#--------------------------------------------------------------------------------------

#--------------------------------------------------------------------------------------
# while condition
#--------------------------------------------------------------------------------------
i = 0 #------------->Initialization
while i <= 5: #----->Condition
    print(i)
    i += 1 #-------->Update


#--------------------------------------------------------------------------------------
# while True
#--------------------------------------------------------------------------------------
while True:
    x = input("Type: ")
    if x == "stop":
        break

#--------------------------------------------------------------------------------------
# Task
# write a program that keeps asking "Do you agree?" until user types "yes"
#--------------------------------------------------------------------------------------
# while condition
answer = ""
while answer != "yes":
    answer = input("Do you agree?(yes/no): ")
print("Thank You")
# while True
while True:
    answer = input("Do you agree?(yes/no):")
    if answer == "yes":
        break

#--------------------------------------------------------------------------------------
# challenge
# write a program that keeps asking "Do you agree?" until user types "yes"
# allow up to 3 attempts
# if the user types "yes", print "Glad we are on the same page"
# otherwise, print "3 strikes, you are out!"
#--------------------------------------------------------------------------------------
# by using while condition
attempts = 0
while attempts < 3:
    answer = input("Do you agree?(yes/no): ")
    if answer == "yes":
        print("Glad we're on the same page")
        break
    attempts += 1
else:
    print("3 strikes. you are out!")

# by using while True
count = 0
while True:
    answer = input("Do yo agree?(yes/no): ")
    count += 1
    if answer == "yes":
        print("Glad we're on the same page")
        break
    if count == 3:
        print("3 strikes. You are out!")
        break