Java Reference
In-Depth Information
command line
The terminal window where you can type in commands.
compile
To take a text file of human-readable language instructions and convert
it into something the computer can run (usually a binary format).
javac
is
the Java compiler.
constructor
A function in a class definition that is called when creating a new object.
You can use this to set the object's variables and such.
current directory
In a shell, the directory that's current (
ha
, a tautology!)
deploy
To install a resource into a server environment.
DNS
Domain Name Service, the global system that translates a domain name
like
example.com
to an IP address like 93.184.216.119.
double
A big floating-point number.
environment variable
Settings used by the shell and application programs.
event
An object that represents some real-world action, such as a mouse click.
exception
An error that interrupts the current function and starts running the top-
most enclosing
catch
, or aborts the program if there isn't one.
executable
A file that the computer can run, usually a binary file with low-level
machine instructions, but sometimes a text script run by a shell.
file system
The collection and organization of files and folders (directories) on the
computer.
final
A Java keyword indicating that this variable can't be changed.
float
A not-so-big floating-point number.
