String Formatting

# Define variables
name = "Alice"
age = 25

# Use the % operator for string formatting
formatted_string = "Hello, %s. You are %d years old." % (name, age)
print(formatted_string)

# Define variables
name = "Bob"
age = 30

# Use the str.format() method for string formatting
formatted_string = "Hello, {}. You are {} years old.".format(name, age)
print(formatted_string)

# Define variables
name = "Charlie"
age = 35

# Use named placeholders with the str.format() method
formatted_string = "Hello, {name}. You are {age} years old.".format(name=name, age=age)
print(formatted_string)

# Define variables
name = "Diana"
age = 40

# Use f-strings for string formatting
formatted_string = f"Hello, {name}. You are {age} years old."
print(formatted_string)

# Define variables
a = 5
b = 10

# Use expressions within f-strings
formatted_string = f"The sum of {a} and {b} is {a + b}."
print(formatted_string)

# Define a float variable
pi = 3.14159

# Using the % operator
formatted_string = "Pi approximately equals %.2f" % pi
print(formatted_string)

# Using the str.format() method
formatted_string = "Pi approximately equals {:.2f}".format(pi)
print(formatted_string)

# Using f-strings
formatted_string = f"Pi approximately equals {pi:.2f}"
print(formatted_string)

# Define a list of names
names = ["Alice", "Bob", "Charlie"]

# Using the % operator
for name in names:
    print("%-10s" % name)  # Left-aligned with padding

# Using the str.format() method
for name in names:
    print("{:<10}".format(name))  # Left-aligned with padding

# Using f-strings
for name in names:
    print(f"{name:<10}")  # Left-aligned with padding

# Define variables
name = "Emily"
balance = 1234.567

# Using the % operator
formatted_string = "Name: %-10s | Balance: $%8.2f" % (name, balance)
print(formatted_string)

# Using the str.format() method
formatted_string = "Name: {:<10} | Balance: ${:8.2f}".format(name, balance)
print(formatted_string)

# Using f-strings
formatted_string = f"Name: {name:<10} | Balance: ${balance:8.2f}"
print(formatted_string)