These are the drawings created by our classmates, using GUI's
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Thursday, 18 October 2012
Monday, 1 October 2012
A Java applet is an applet delivered to users in the form of Java bytecode. Java applets can run in
a Web browser using a Java Virtual
Machine (JVM), or in Sun's AppletViewer, a stand-alone tool for
testing applets. Java applets were introduced in the first version of the Java
language in 1995, and are written in programming
languages that compile to Java bytecode, usually in Java,
but also in other languages such as Jython, JRuby, or Eiffel (via SmartEiffel).
Applets are used to provide interactive features to web
applications that cannot be provided by HTML alone.
They can capture mouse input and
also have controls like buttons or check boxes. In response to the user action
an applet can change the provided graphic content. This makes applets well
suitable for demonstration, visualization and teaching. There are online applet
collections for studying various subjects, from physics to heart physiology. Applets
are also used to create online game collections that allow players to compete
against live opponents in real-time.
Monday, 10 September 2012
What is GUI and AWT?
In computing, a graphical
user interface (GUI, commonly pronounced gooey) is a type of user interface that allows users tointeract with
electronic devices using images rather than text commands. GUIs can be
used in computers, hand-held devicessuch as MP3 players,
portable media players or gaming devices, household appliances and office
equipment. A GUI represents the information and actions available to
a user through graphical icons and visual indicators such as secondary notation,
as opposed to text-based
interfaces, typed command labels or text navigation. The actions are
usually performed through direct manipulation of
the graphical elements.
The Abstract Window Toolkit (AWT) is Java's
original platform-independent windowing, graphics, and user-interface widget toolkit. The AWT is now part of the Java Foundation
Classes (JFC) — the standard API for
providing a graphical user
interface (GUI) for a Java program. AWT is also the GUI toolkit
for a number of Java ME profiles.
For example, Connected
Device Configuration profiles require Java runtimes on mobile telephones to support AWT.
Click the links here for the Video presentation or this PDF Presentation to know more
Sunday, 9 September 2012
Exemption and event Handling
One of the most interesting things about support for
event-driven programming on the Java platform is that there is none, as such.
Or, depending on your point of view, there are many different individual pieces
of the platform that offer their own support for event-driven programming.
The reason that the Java platform doesn't offer one general
implementation of event-driven programming is linked to the origins of the
support that the platform does offer. Back in 1996 the Java programming
language was just getting started in the world and was still trying to gain a
foothold and conquer a place for itself in software development. Part of this
early development concentrated on software development tooling like IDEs.
Wednesday, 5 September 2012
Methods of Java :D
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A Java method is a collection of statements that are grouped together to perform an operation. When you call the System.out.println method, for example, the system actually executes several statements in order to display a message on the console.
Now you will learn how to create your own methods with or without
return values, invoke a method with or without parameters, overload
methods using the same names, and apply method abstraction in the
program design.
Tuesday, 28 August 2012
As you can see, even the Java class requires several lines
of codes and contains somewhat perplexing syntax. Large applications that
perform many tasks include much more code, and as you write larger applications
it becomes increasingly difficult to remember why you included steps or how you
intended to use particular variables. Documenting your program code helps you
remember why you wrote lines of codes the way you did. Program comments are
nonexecuting statements that you add to a program for the purpose of
documentation. Programmers use comments to leave notes for themselves and for
others who might read their programs in the future. At the very least, your
Java class files should include comments indicating the author, the date, and
the class name or function. The best practice dictates that you also include a
brief comment to describe the purpose of each method you came within a class.
The Flow Control & Arrays
Programs are much more than the simple sequential execution
of statements. We often need to excute a section of code repeatedly,
perhaps with a change of some of the program's state each time. We also
commonly need to execute different sections of code depending upon whether some
condition is true of false. This lesson will discuss these two types or
flow control that are commonly seen in programs: Looping and Branching. An
array is a very common type of data structure where in all elements must
be of the same data type. Once defined , the size of an array is
fixed and cannot increase to accommodate more elements.The first
element of an array starts with zero.
Click here for more info
Friday, 17 August 2012
Tuesday, 24 July 2012
Data Types? Java has it!
Java is not hard to learn if you have background about C and
C++. They have similarities especially on data types and variables. For us to
understand better the java programming language we prepare some report that can
help us. The content of this report is all about data types, reserved words,
keywords, naming convention, identifiers and operations of this programming
language. So enjoy reading, and we hope that it can help you learn the java
language.
Monday, 23 July 2012
The Development Phases and IDE
What are the Development
phases in Java? Why does java have need these phases in creating a
program? What is IDE? What does it normally consist of? What does it allow me
to do? Are there other IDE's that I can use? All of these modern questions
about development phases and IDE will be answered.
Sunday, 22 July 2012
A little something about UML
UML was meant to be a unifying language enabling IT professionals to
model computer applications. The primary authors were Jim Rumbaugh, Ivar
Jacobson, and Grady Booch, who originally had their own competing methods (OMT,
OOSE, and Booch). Eventually, they joined forces and brought about an open
standard. (Sound familiar? A similar phenomenon spawned J2EE, SOAP, and Linux.)
One reason UML has become a standardmodeling language is that it is
programming-language independent. (UML modeling tools from IBM Rational are
used extensively in J2EE shops as well in .NET shops.) Also, the UML notation
set is a language and not a methodology. This is important, because a language,
as opposed to a methodology, can easily fit into any company's way of
conducting business without requiring change.
Click to see the video about UML
Wednesday, 20 June 2012
As we know that JAVA was developed by Sun microsystems, now here is the berief history of how the language originated. you may see also here the kinds of java, features of java, characteristics of java and the platform of java. we hope this would help you to understand more about java, how its started. enjoy reading users! ^^,'
Check this out!
(OOP) represents an attempt to make programs more closely model the way people think
about and deal with the world. In the older styles of programming, a programmer
who is faced with some problem must identify a computing task that needs to be
performed in order to solve the problem. Programming then consists of finding a
sequence of instructions that will accomplish that task. But at the heart of
object-oriented programming, instead of tasks we find objects- entities that
have behaviours, that hold information, and that can interact with one another.
Programming consists of designing a set of objects that model the problem at
hand. Software objects in the program can represent real or abstract entities
in the problem domain. This is supposed to make the design of the program more
natural and hence easier to get right and easier to understand.
An
object-oriented programming language such as JAVA includes a number of features
that make it very different from a standard language. In order to make
effective use of those features, you have to “orient” your thinking correctly.
Tuesday, 19 June 2012
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