If statement

If Statement

An else statement can be combined with an if statement. An else statement contains a block of code that executes if the conditional expression in the if statement resolves to 0 or a FALSE value.

The else statement is an optional statement and there could be at the most only one else statement following if.

If the statement is a VERY important tool for programming

If it's sunny

      It's a sunny day

     Wear your sunglasses

Otherwise, it's rainy

     It's a rainy day

     Get your umbrella

Otherwise

    It's a great day in town 

So we will program this statement. We will start with a boolean variable.

 Now we will declare it False, and run it..  Nothing happens

Now let's switch again to True. And add another statement

Now let's add the else statement with True value. Maybe is not either sunny or rainy

Now look what happens when we change it to False because probably is cloudy..not rainy, nor sunny

Exercise

You want to buy a car and you went to a Toyota dealer.The car price is $20,000.
You need to put a down payment  10% if you have good credit, otherwise, you need to put a downpayment of 20%

price = 30,000
has_good_credit = True
if has_good_credit :
    down_payment= 0.1 * price
else:
      down_payment = 0.2 * price

print(F"Down Payment :${down_payment}")

Now assume the value is True  ( good credit)

Now assume it's False (bad credit)