... call it
select(getMyEmpInfoFactory(), ”selection string”);
The downside of this solution is that it requires either:
• the use of verbose anonymous factory classes at the call site, or
16
1 Introduction
JDK ... fine, but while the first type parameter is used both in the type of src and
in the bound ofthe second type parameter, S, S itself is only used once, in the type of
dst - nothing else depends on ... using
the latest version oftheJavaprogramming language, which supports generics.
Alas, in reality this isn’t the case. Millions of lines of code have been written in
earlier versions ofthe language, ...
... objects, which
then have the responsibility to respond with some action. The order
and timing of these messages is determined by the actions ofthe user,
and not by the control flow ofthe program. ... from other objects
that use sensors to check the status of a sensor, to turn a sensor on or
off, or to report on the sensor's values. A sensor object could also
maintain a history of its ... reflects the current values of all the attributes of a
given object, and is the result ofthe behavior of an object over
time.
Java programs are defined as collections of classes. Normally each
Java...
... e.g., see Section 5.5 for an example of
how to use only shared variables to program synchronization and see Section 6. 1
for an example of how to use semaphores.
The second important aspect of JR ... essentially gives the types ofthe parameters and
the return value. So, the square op-method from the previous section can be
written equivalently as
The method is said to service invocations of ... aspects of JR. Chapter 4 discusses
these aspects in detail.
The first aspect to note is that JR programs use the same scoping as Java
programs. Consequently, each process gets its own copy of variables...
... e.g., see Section 5.5 for an example of
how to use only shared variables to program synchronization and see Section 6. 1
for an example of how to use semaphores.
The second important aspect of JR ... earlier, the sequential aspects of JR are identical to those of Java
(with the exception of one extension seen in Chapter 3). However, JR provides
extensions to Java to simplify the writing of concurrent ... index value, the higher the priority ofthe process. We
simulate the duration of critical and non-critical sections of code by having each
user
process “nap” for a random number of milliseconds.
Contents
xi
Part...
... /simpleHTML.html">Form</A>");
out.close();
}
Note: To learn how to use the other methods available in the
HttpServlet, HttpServletRequest, and
HttpServletResponse classes, see TheJava Tutorial trail on
Servlets.
More ... some ofthe other available layout managers and how to
use them, see the JDC article Exploring the AWT Layout Managers.
The call to the getContentPane method ofthe JFrame class is for
adding the ...
1 of 3 21-04-2000 17:30
Essentials ofthe Java( TM) Programming Language, Part 1 http://developer .java. sun.com/developer ining /Programming/ BasicJava1/index.html
Training Index
Java
TM
Programming...
...
super.clone
, set all ofthe fields in
the resulting object to their virgin state, and then call higher-level methods to regenerate
the state ofthe object. In the case of our
Hashtable
example, the ... reference cells, not the objects
themselves). The elements in the active portion ofthe array (as defined earlier) are allocated,
and those in the remainder ofthe array are free. The garbage collector ...
the absence of well-designed APIs for the components ofthe system.
No language is perfect, but some are excellent. I have found theJavaprogramminglanguage
and its libraries to be immensely...
... on the part ofthe programmer. C++ destructors are also used to
reclaim other nonmemory resources. In theJavaprogramming language, the
try-finally
block is generally used for this purpose. ...
the absence of well-designed APIs for the components ofthe system.
No language is perfect, but some are excellent. I have found theJavaprogramminglanguage
and its libraries to be immensely ... reference cells, not the objects
themselves). The elements in the active portion ofthe array (as defined earlier) are allocated,
and those in the remainder ofthe array are free. The garbage collector...
... come in the form of asking the browser to go to another
Web site, or changing the text displayed in the status bar at the bottom of the
browser. Let’s look at how to switch Web pages now, then we’ll ... in use in several of our example programs.
When the user of an application clicks on the close icon for your application, it
sends a message indicating that the close icon has been pressed. This ... a component.
MOUSE_DRAG Represents the event that occurs when the mouse button is down and the mouse is
moved.
LIST_SELECT Represents the event that occurs when an option is selected from within...