What is a variable?

- A container for a value. Behaves as the value that it contains (like maths)

if you want to print your "Hello (your name)":

first_name = "Eric"

last_name = "Ramos"

full_name = first_name + " " + last_name

print("Hello" + full_name)

THE RESULT: Hello Eric Ramos

*DO NOT put any quote sign in the variable so you're gonna print it.

*if a variable has two words, you must separate them with an underscore sign "_"

---> print(type(name)) if you want to check the data type

If you want to comment a line just put the # sign

------------------------------------------------------------------------------------ INT (INTEGER) ----------------------------------------------------------------------

A Whole Number

age = (a number you want to use)

*DO NOT use any quote marks in variable, otherwise you're gonna transform it in a string ('str'),

and you won't be able to "do maths" with it

age = 27

age = age + 1 (if you want to do maths)

print(age)

If you want to display your age variable along with a string e.g. Your age is 27

print("Your age is: "+age) WRONG

To use a string and a int value, you must convert your int in a string, using typecasting

THAT'S HOW TO DO IT:

print ("Your age is: " +str(age))

---------------------------------------------------------------------- FLOAT (FLOATING POINT NUMBER) ----------------------------------------------------------------------

A Decimal Number

height = 250.5

#print(height)

print("Your height is: "+str(height)+"cm")

THE RESULT: Your height is 250.5cm

-------------------------------------------------------------------------------------- BOOLEAN ----------------------------------------------------------------------------------------------

True or False

human = True

#print(human)

print("Are you a Human: "+str(human))

THE RESULT: Are you a human: True

Next up

Previous

Type Cast

Description