PYTHON

string format()

# ------------------- string format, f-string ----------------------------

# {} is placeholder
num1 = 5
num2 = 3                
print(f'{num1} times {num2} is {num1 / num2:.2f}')  #2f means print to 2 decimal precision
#5 times 3 is 1.67

#explicit call format() method
number1 = 'One'
number2 = 'Two'
number3 = 'Three'

# default(implicit) order
default_order = "{}, {} and {}".format(number1,number2,number3)
print(default_order)
# One, Two and Three

# order using positional argument
positional_order = "{1}, {0} and {2}".format(number1,number2,number3)
print(positional_order)
# Two, One and Three

# order using keyword argument
keyword_order = "{i}, {j} and {k}".format(j=number1,k=number2,i=number3)
print(keyword_order)
# Three, One and Two

.format()

# Python3 program to demonstrate
# the str.format() method
 
# using format option in a simple string
print("{}, A computer science portal for geeks."
      .format("GeeksforGeeks"))
 
# using format option for a
# value stored in a variable
str = "This article is written in {}"
print(str.format("Python"))
 
# formatting a string using a numeric constant
print("Hello, I am {} years old !".format(18))

.format()

# Python program using multiple place
# holders to demonstrate str.format() method
 
# Multiple placeholders in format() function
my_string = "{}, is a {} science portal for {}"
print(my_string.format("GeeksforGeeks", "computer", "geeks"))
 
# different datatypes can be used in formatting
print("Hi ! My name is {} and I am {} years old"
      .format("User", 19))
 
# The values passed as parameters
# are replaced in order of their entry
print("This is {} {} {} {}"
      .format("one", "two", "three", "four"))

OUTPUT:
GeeksforGeeks, is a computer science portal for geeks
Hi! My name is User and I am 19 years old
This is one two three four

.format()

OUTPUT:
GeeksforGeeks, A computer science portal for geeks.
This article is written in Python
Hello, I am  18 years old!

.format()

# Python3 program to demonstrate
# the str.format() method
 
# using format option in a simple string
print("{}, A computer science portal for geeks."
      .format("GeeksforGeeks"))
 
# using format option for a
# value stored in a variable
str = "This article is written in {}"
print(str.format("Python"))
 
# formatting a string using a numeric constant
print("Hello, I am {} years old !".format(18))

OUTPUT:

GeeksforGeeks, A computer science portal for geeks.
This article is written in Python
Hello, I am  18 years old!

.format()

# Python program using multiple place
# holders to demonstrate str.format() method
 
# Multiple placeholders in format() function
my_string = "{}, is a {} science portal for {}"
print(my_string.format("GeeksforGeeks", "computer", "geeks"))
 
# different datatypes can be used in formatting
print("Hi ! My name is {} and I am {} years old"
      .format("User", 19))
 
# The values passed as parameters
# are replaced in order of their entry
print("This is {} {} {} {}"
      .format("one", "two", "three", "four"))

OUTPUT:
GeeksforGeeks, is a computer science portal for geeks
Hi! My name is User and I am 19 years old
This is one two three four