Modern Programming Made Easy: Using Java, Scala, Groovy, and JavaScript

© Adam L. Davis 2020

A. L. DavisModern Programming Made Easyhttps://doi.org/10.1007/978-1-4842-5569-8_4

4. Math

Adam L. Davis¹ 

(1)

Oviedo, FL, USA

 

(Or Maths, if you prefer.)

Adding, Subtracting, etc.

Your friend Bob was just bitten by a zombie but escaped alive. Unfortunately, there is now one more zombie to worry about.

1   zombies = zombies + 1;

There’s a shorter way to write the same thing (and we are pressed for time here; the zombies are coming).

1   zombies += 1;

Actually, there’s an even shorter way to write this, and it’s called the increment operator.

1   zombies++;

Luckily, there’s also a decrement operator (to use when we kill a zombie).

1   zombie--;

Adding and subtracting are easy enough, but what about their cousins, multiplying and dividing? ...