Week5 Coding Exercise 1

#1
print("METHOD 1: Using For-Loop")
#Funtion Program
def right_words(expected_list, expected_no):
    answer=[]
    for words in expected_list:
        if len(words)==expected_no:
            answer.append(words)
    print(answer)


#Main Program
#The following lines of codes will accepts a list of words
user_list=[]
while True:
    try:
        num=int(input("How many words would you like to play with? "))
        break
    except ValueError:
        print("That's a wrong input!\nYou must provide a positive integer. Please, try again.")
        print("\n")

for i in range(num):
    word=input("Enter those words of your choice: ")
    user_list.append(word)

#The following lines of codes will accepts a specific number i.e. word length
print("\n")
while True:
    try:
        n=int(input("What is the size of the length of words that you want? "))
        break
    except ValueError:
        print("That's a wrong input!\nYou must provide a positive integer. Please, try again.")
        print("\n")

print("The words with",n,"characters are: ")
right_words(user_list,n)

print("\n")

print("METHOD 2: Using Filter Function")
#Function Program
def right_words(expected_list):
    return len(expected_list)==n

#Main Program
user_list=[]
while True:
    try:
        num=int(input("How many words would you like to play with? "))
        break
    except ValueError:
        print("That's a wrong input!\nYou must provide a positive integer. Please, try again.")
print("\n")

for i in range(num):
    word=input("Enter those words of your choice: ")
    user_list.append(word)
print("\n")
n=int(input("What is the size of the length of words that you want? "))

print("The words with",n,"characters are: ")
print(list(filter(right_words, user_list)))


print("\n")
print("METHOD 3: Using Lamda Function")
user_list=[]
while True:
    try:
        num=int(input("How many words would you like to play with? "))
        break
    except ValueError:
        print("That's a wrong input!\nYou must provide a positive integer. Please, try again.")
print("\n")

for i in range(num):
    word=input("Enter those words of your choice: ")
    user_list.append(word)

print("\n")
while True:
    try:
        n=int(input("What is the size of the length of words that you want? "))
        break
    except ValueError:
        print("That's a wrong input!\nYou must provide a positive integer. Please, try again.")
print("\n")

print("The words with",n,"characters are: ")
print(list(filter(lambda user: len(user)==n, user_list)))