The function is a block of statements that runs when it is called. The world of programming cannot exist without functions since they:

• are reusable.

• can test a particular part of your code.

• can be applied to a number of cases if you change the parameters.

Let’s go deep into it. For instance, you have decided to program the cat. It should say "meow!":

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Easy implementation. Repeating output will overload your code. However, what should we do if the cat must say meow twice or 20 times in different periods? In such a situation, we can use functions. To create a function, you need to specify the keyword void, the name of the function, followed by parentheses ():

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Let's create the function sound() for the cat, which will print "meow!":

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