Java Reference
In-Depth Information
Figure 25.3. Command classes generally define themselves using terms that may be
variables, specific machines, or Boolean expressions.
The interpreter classes let you compose programs that control the machine line. Each class
interprets the
execute()
command in a way that is consistent with the class's name. For
example, the
execute()
method for
StartupCommand
is:
public void execute(Context c)
{
Machine m = term.eval(c);
m.startup();
}
For the
ForMachines
class,
execute()
is:
