Archive for: September, 2014

The Life Cycle Of a Servit

The Life Cycle Of a Servit  . Three methods are central to the life cycle of a servlet into service Land destroy( ). They are implemented by every servlct and arc invoked at specific limes by the server . Consider rrcxt’ a typical user sccnano, to understand when these methods .irc called. First, assume that a user enters…

Read More →

Background

Background To understand the advantages of servlets, yon must have a basic understanding of how Web browsers and servers cooperate to provide content to a user. Consider a request for a static Web page. A user enters a Uniform Resource Locator (URL) to a browser. The browser generates an HTTP request to the appropriate Web server. The Web server-maps…

Read More →

Servlets

Servlets ThiS chapter presents an overview of scram Jets. Servlets arc small programs that  execute on the server side of a Web connection. [ustas applets dynamically  extend the functionality of n Web browser, servlets dynamically extend the functionality of a Web server The java Servlet Development Kit (JSDK) contains the class Libraries that you will need to create servlets.…

Read More →

Create Unroll Amount Array( )

Create Unroll Amount Array( )  Each consecutive cell frame in this transition unrolls the roll onto ‘he applet a little bit less than ‘he previous cell frame. The create Unroll Amount Array() static method is used to calculate an array that indicates how much each cell frame should unroll the roll. init( ) The init< Method lor this…

Read More →

Unroll Transition.java

Unroll Transition.java Unroll’Transition makes it appear as if a rolled-up poster is placed on the bottom of the applet ana then unrolled upward, gradually revealing the next image and covering the old image. To enhance the unroll illusion, the roll gradually decreases in size as it makes its ‘way upward on the billboard. Two instance variables are used…

Read More →

Tear( )

Tear( ) The Tear:() method modifies the work_pixels array for the next cell. It draws the tear effect onto the work pixels. It draws the tear effect line by line. To draw one line, the method copies pixels from the old image pixels into the work_pixels array. It uses two counters, one that is an index into the…

Read More →

Tear Transition.java

Tear Transition.java The Tear Transition creates the illusion of the current billboard getting torn off the applet like a piece of It gets ripped upwards and toward the left to reveal the next billboard image underneath, There is only one member variable used in this transition, x_cross. It is used as a multiplier to create the tear effect. The…

Read More →

setup Fill Pixels( )

setup Fill Pixels( ) The setup Fill Pixels() static method is used to ensure that the fill pixel array is initialized-and is at as long as one whole line (or this applet. If this array has not -been initialized yet or is not long enough for this applet, then this method respectively re-creates or creates and fills in the…

Read More →

Smash Transition.java

Smash Transition.java The Smash Transition class changes one image into another by dropping the new image onto the old one. The old image appears to crumble under the weight of the hew image. Two instance variables, drop_amount and location, are used to create the frames; The location variable keeps track of the pixel that the smashed image starts on.…

Read More →

create Random Array()

create Random Array() The create Random Array () static method’ creates the two-dimension random array. It takes parameters that describe the size of the applet, It is highly optimized, because originally it Was,too slow. It includes its own random-number generator that is very fast, but with a short cycle. Because of this, it is fairly complicated and beyond the scope…

Read More →

Back to Top