For loop

The for Loops in Python are a special type of loop statement that is used for sequential traversal. Python for loop is used for iterating over an iterable like a String, Tuple, List, Set, or Dictionary.

example :

name = 'varatharajan'



for alphabet in name:

    print(alphabet, end=' ')

result

v a r a t h a r a j a n

if,else

The if statement is the most simple decision-making statement. It is used to decide whether a certain statement or block of statements will be executed or not.

The elif keyword is Python's way of saying "if the previous conditions were not true, then try this condition".

example 1 :

a = 33

b = 200

if b > a:

  print("b is greater than a")

result

b is greater than a



example 2 :

txt = '12a4'



for num in txt:

    if num>='0' and num<='9':

        print(num,end=' ')

    else:

        print('Not Decimal',end=' ')

result

1 2 Not Decimal 4

Task :

name = input("Enter Name: ")

Lakshmi pritha

Guru prasanna

Guhanraja

Varatharajan

1: Names starting with letter 'G'

2: Names endings with 'a'

3: Names having space in between

4: Names having more than 9 letters

input

name1 = input("Enter the first name: ")

name2 = input("Enter the second name: ")

name3 = input("Enter the third name: ")

name4 = input("Enter the fourth name: ")

name = [name1, name2, name3, name4]



# Check if names start with 'G'

for letter in name:

    if letter[0]=='G':

        print(letter)



# Check if names end with 'a'

for alphabet in name:

    if alphabet[-1]=='a':

        print(alphabet)



# Check if names contain a space

for alpha in name:

    for space in alpha:

        if space==' ':

            print(alpha)



# Check if names are longer than 9 characters

for character in name:

    if len(character)>9:

        print(character)

Output



Enter the first name: Varatharajan

Enter the second name: Guru prasanna

Enter the third name: Lakshmi pritha

Enter the fourth name: Guhanraja

Guru prasanna

Guhanraja

Guru prasanna

Lakshmi pritha

Guhanraja

Guru prasanna

Lakshmi pritha

Varatharajan

Guru prasanna

Lakshmi pritha