# Using single quotes

single_quoted_string = 'Hello, World!'

# Using double quotes

double_quoted_string = "Python is awesome."

# Using triple quotes for multiline strings

multiline_string = '''This is a

multiline

string.'''

text = "Python"

first_char = text[0]  # Access the first character (indexing starts from 0)

last_char = text[-1]  # Access the last character

substring = text[1:4]  # Access a substring (slicing)

str1 = "Hello"

str2 = "World"

concatenated_string = str1 + ", " + str2 + "!"

print(concatenated_string)

# Output: Hello, World!

message = "python programming"

# Capitalize the first letter

capitalized = message.capitalize()

# Convert to uppercase

uppercase = message.upper()

# Find the index of a substring

index = message.find("python")

# Replace a substring

new_message = message.replace("programming", "is fun")

# Check if the string starts with a specific prefix

starts_with = message.startswith("python")

# Split the string into a list of words

word_list = message.split()

# Check if the string contains only alphanumeric characters

is_alphanumeric = message.isalnum()

name = "Alice"

age = 30

formatted_string = f"My name is {name} and I am {age} years old."

print(formatted_string)

# Output: My name is Alice and I am 30 years old.

escaped_string = "This is a \"quote\" and this is a newline:\nNew line."

print(escaped_string)

# Output: This is a "quote" and this is a newline:

# New line.