Java Variables
I have already mentioned that variables are our data. Data is simply, values. We can think of a variable as a named storage box. We choose a name, perhaps livesRemaining. These names are kind of like our programmer's window into the memory of the user's Android device.
Variables are values in computer memory ready to be used or altered when necessary by using the name they were given.
Computer memory has a highly complex system of addressing, which fortunately we do not need to interact with because it is handled by the operating system. Java variables allow us to devise our own convenient names for all the data we need our program to work with.
The DVM (Dalvik Virtual Machine) will handle all the technicalities of interacting with ...
Get Learning Java by Building Android Games - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
