The document discusses JavaFX 2.0, which is Java's next generation GUI toolkit. It allows developers to build rich cross-platform applications using a scene graph paradigm. Before JavaFX, developers had to integrate many separate libraries for media, UI controls, web functionality, 3D and 2D APIs. JavaFX rolls these capabilities into one API. The document then discusses how to create a basic JavaFX application, add text, menus, buttons and labels.
Java GUI PART III is the continues of JAVA GUI PART I and II covering and discussing the GUI components with events and events handling as for instance Action Event, Mouse Event, Key Event, etc...
Storing data is a basic and very common need in mobile apps. The Android application framework provides several storage options, one of which is SQLite databases.
In this tutorial you will see a simple Android database example. The example is based on the Android ListView Tutorial and the Android AsyncTask Tutorial, however these tutorials are not mandatory for the purpose of understanding the principles of proper Android database usage.
Java GUI PART III is the continues of JAVA GUI PART I and II covering and discussing the GUI components with events and events handling as for instance Action Event, Mouse Event, Key Event, etc...
Storing data is a basic and very common need in mobile apps. The Android application framework provides several storage options, one of which is SQLite databases.
In this tutorial you will see a simple Android database example. The example is based on the Android ListView Tutorial and the Android AsyncTask Tutorial, however these tutorials are not mandatory for the purpose of understanding the principles of proper Android database usage.
Mobilių programėlių Android operacinei sistemai kūrimo paskaita, kurią veda UAB "App Camp" Android guru Vykintas Valkaitis.
Pagrindinės paskaitos temos:
SQLite duomenų bazė
Adapteriai ir greitas sarašų atvaizdavimas
GPS biblioteka
Google maps integracija
Camera biblioteka
Unit testai
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Configuring the CLASSPATH environment variable on Windows 8.1 to use WEKA tools from the command line with Java.
Mark Hall, Eibe Frank, Geoffrey Holmes, Bernhard Pfahringer, Peter Reutemann, Ian H. Witten (2009); The WEKA Data Mining Software: An Update; SIGKDD Explorations, Volume 11, Issue 1.
A Series of Fortunate Events - Symfony Camp Sweden 2014Matthias Noback
What is an event really? How can you best describe an event in your code? What types of events are there, and how do you decide whether or not to implement something as an event?
In this talk we start with a straightforward command-only piece of code. We extract events from it and start moving the event handling code out, trying different design patterns on the way. First we try Observer. Then we introduce event data, event handlers and a Mediator between our code and the event handlers. Finally we pick a well-known event dispatcher implementation (the Symfony EventDispatcher) and see how it uses the Chain of Responsibility design pattern to control the entire flow of a web application request.
In the end I will answer some burning questions like: is it safe to use events all over the place and rely on event handlers to do some really important stuff? How do I overcome the indirection in my event-driven code? And how can I quickly find out what happens where?
Temas tratados en el Capítulo 2 del Curso de Fundamentos de Programación en Java - PROGRAMACIÓN ORIENTADA A
OBJETOS CON JAVA.
Unidad de Educación Contínua - UNIDEC
Universidad Central del Ecuador
Ing. Giovanny Moncayo Unda
Mobilių programėlių Android operacinei sistemai kūrimo paskaita, kurią veda UAB "App Camp" Android guru Vykintas Valkaitis.
Pagrindinės paskaitos temos:
SQLite duomenų bazė
Adapteriai ir greitas sarašų atvaizdavimas
GPS biblioteka
Google maps integracija
Camera biblioteka
Unit testai
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"First Steps in Code Driven Development" covers basic techniques and good practices. Presented during the "Developer Session" at Krimson office, Antwerp (BE), the 27th of May 2010.
Configuring the CLASSPATH environment variable on Windows 8.1 to use WEKA tools from the command line with Java.
Mark Hall, Eibe Frank, Geoffrey Holmes, Bernhard Pfahringer, Peter Reutemann, Ian H. Witten (2009); The WEKA Data Mining Software: An Update; SIGKDD Explorations, Volume 11, Issue 1.
A Series of Fortunate Events - Symfony Camp Sweden 2014Matthias Noback
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In the end I will answer some burning questions like: is it safe to use events all over the place and rely on event handlers to do some really important stuff? How do I overcome the indirection in my event-driven code? And how can I quickly find out what happens where?
Temas tratados en el Capítulo 2 del Curso de Fundamentos de Programación en Java - PROGRAMACIÓN ORIENTADA A
OBJETOS CON JAVA.
Unidad de Educación Contínua - UNIDEC
Universidad Central del Ecuador
Ing. Giovanny Moncayo Unda
Java Program Photo Viewer1. Write an app called viewer that will .pdfbhim1213
Java Program: Photo Viewer
1. Write an app called viewer that will have a Label at the top saying \"My Viewer\" (or
something like that)
2. Will have JButtons at the bottom that will do Next, Previous, and Quit
3. Have the whole middle be a JLabel in which you will display Images stored in a directory.
4. The directory can be named Resource.
5. When you run the program (java viewer) it will read all the names in the Resource Directory.
Then, when you click Next or Previous it will display an Image.
6. Note: you will need to find a java method that exists for reading a whole directory of
filenames. You can store all those names in a String Array when run the program.
7. You will use a counter or index that is an int an when you click Next it will increment the
counter until it reach some maximum value and then you will set it to 0. Previous will decrement
the counter until it goes negative and then it will set the counter to the Maximum index ( which
is how many filenames you have in the Image names array)
8. Submit the program viewer.java I should be able to use it with my own Resource directory.
Solution
Please refer this code for your application :
--------------------------------------------------------------------------------------------------------------------
--------------
import java.awt.Image;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
public class ImageViewer extends javax.swing.JFrame {
public ImageViewer() {
initComponents();
listFiles(Path); //Lists all the files in the directory on window opening
setLabelIcon(Path,filenames[position]); //sets the label to display the first
//image in the directory on window opening.
PreviousButton.setEnabled(false);
}
/**
*Initialize components
*/
private void initComponents() {
setTitle(\"Image Viewer\");
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLayout(new java.awt.BorderLayout());// The layout is BorderLayout
//setBorder(javax.swing.BorderFactory.createEtchedBorder());
setBackground(java.awt.Color.GRAY);
picLabel = new javax.swing.JLabel(); //Create the Label to display the picture
picLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
picLabel.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
PreviousButton = new javax.swing.JButton();
PreviousButton.setText(\"Previous\");
PreviousButton.setIconTextGap(10); //Distance between the icon and text is 10
PreviousButton.addActionListener(new java.awt.event.ActionListener() { //Register an
actionListener for the PreviousButton
public void actionPerformed(java.awt.event.ActionEvent evt) {
PreviousButtonActionPerformed(evt);
}
});
NextButton = new javax.swing.JButton();
NextButton.setPreferredSize(PreviousButton.getPreferredSize());
NextButton.setText(\"Next\");
NextButton.setHorizontalTextPosition(javax.swing.SwingConstants.LEFT);
NextButton.setIconTextGap(10); //Distance between the icon and text is 10
NextButton.addActionListener(new java.awt.event.ActionL.
An overview of the code that makes up the skeleton of a basic RCP application. This includes the basics for advisors and perspectives. This module also describes the basics of how to launch and debug an RCP application.
Java programming presentations By Daroko blog
Do not just read java as a programmer, find projects and start making some Money, at DAROKO BLOG,WE Guide you through what you have learned in the classroom to a real business Environment, find java applications to a real business Environment, find also all IT Solutions and How you can apply them, find the best companies where you can get the IT jobs worldwide, Find java contract, Complete and start making some cash, find clients within your Country, refer and get paid when you complete the work.
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b) Use Auto Layout programmatically
c) Debug Auto Layout
d) Constraints
e) Intrinsic content Size
f) Interface Builder and Constraints
g) Contraint Priorities
h)Constraints in Code
I)Debugging Auto layout
J)Animation Constraints
k)Visual Format Language
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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2. JavaFX Fundamentals
The JavaFX 2.0 API is Java’s next generation GUI toolkit for
developers to build rich cross-platform applications.
JavaFX 2.0 is based on a scene graph paradigm as opposed to the
traditional inmediate mode style rendering.
Before the creation of JavaFX, the development of rich Internet
applications involved the gathering of many separate libraries and
APIs to achieve highly functional applications.
These separate libraries include Media, UI controls, Web, 3D, and 2D
APIs.
Because integrating these APIs together can be rather difficult, the
talented engineers at Sun Microsystems (now Oracle) created a new
set of JavaFX libraries that rool up all the same capabilities under
one roof.
JavaFX 2.0 is a pure Java (language) API that allows developers to
leverage existing Java libraries and tools.
3. Installing Required Sotware
You’ll need to install the following software in
order to get started with JavaFX:
– Java 7 JDK or greater
– JavaFX 2.0 SDK
– Neteans IDE 7.1 or greater
(http://download.oracle.com/javafx/2.0/system_requi
rements/jfxpub-system_requirements.htm)ñ
5. First Steps
JavaFX applications extend the javafx.application..Application class. The Application
class provides application life cycle functions such as launching and stopping during
runtime.
In our main() method’s entry point we launch the JavaFX application by simply passing in
the command line arguments to the Application.launch() method.
Once the application is in a ready state, the framework internals will invoke the start()
method to begin.
When the start() method is invoked, a JavaFX javafx.stage.Stage object is available for
the developer to use and manipulate.
public void start(Stage primaryStage) {
primaryStage.setTitle("Conceptos JavaFX 2.0");
Group root = new Group();
Scene scene = new Scene(root, 300, 250, Color.WHITE);
primaryStage.setScene(scene);
primaryStage.show();
}
6. First Steps
Analogy with a theatre:
– Scene and Stage: There are one or many scenes, and all scenes are performed on a
stage.
Stage is equivalent to an application window.
Scene is a content pane capable of holding zero-to-many Node objects.
A Node is a fundamental base class for all scene graph nodes to be rendered.
Similar to a tree data structure, a scene graph will contain children nodes by using a
container class Group.
public void start(Stage primaryStage) {
primaryStage.setTitle("Conceptos JavaFX 2.0");
Group root = new Group();
Scene scene = new Scene(root, 300, 250, Color.WHITE);
primaryStage.setScene(scene);
primaryStage.show();
}
7. First Steps
Once the child nodes have been added, we set the primaryStage’s (Stage)
scene and call the show() method on the Stage object to show the JavaFX
window.
public void start(Stage primaryStage) {
primaryStage.setTitle("Conceptos JavaFX 2.0");
Group root = new Group();
Scene scene = new Scene(root, 300, 250, Color.WHITE);
primaryStage.setScene(scene);
primaryStage.show();
}
8. Drawing Text
To draw text in JavaFX you will be creating a javafx.scene.text.Text
node to be placed on the scene graph (javafx.scene.Scene).
Text text = new Text(100,100,"JavaFX 2.0");//Create a Text node.
//new Text(posX,posY,text to write)
root.getChildren().add(text); //Add a node in the tree.
9. Text Properties (I)
Rotation
In the method setRotate(), we have
to specify the rotation angle (in degrees)
Text text = new Text(100,100,"JavaFX 2.0");//Create a Text node.
text.setRotate(45);
root.getChildren().add(text); //Add a node in the tree.
10. Text Properties (II)
Font. In each Text node you can create and set the font to be rendered onto the
scene grah.
Text text = new Text(105,50, "JavaFX 2.0");
Font f1 = Font.font("Serif", 30);
text.setFont(f1);
11. Creating Menus (I)
Menus are standard ways on windowed platform applications to allow users to select
options.
First, we create an instance of a MenuBar that will contain one to many menu (MenuItem)
objects.
Secondly, we create menu (Menu) objects that contain one-to-many menu item
(MenuItem) objects and other Menu objects making submenus.
Third, we create menu items to be added to Menu objects, such as menu (MenuItem).
MenuBar menuBar = new MenuBar(); //Creating a menubar
Menu menu = new Menu(“File”); //Creating first menu
MenuItem menuitem=new MenuItem(“New”); //Creating first item
menu.getItems().add(menuitem); //adding item to menu
menuBar.getMenus().add(menu); //adding menu to menubar
root.getChildren().add(menuBar); //adding menubar to the
//stage
12. Creating Menus (II)
For adding an action when you select a menu Item:
menuitem.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent t) {
//action
}
});
13. Creating Menus (III). Example
MenuBar menuBar = new MenuBar();
Menu menu = new Menu("Opcion de Menú");
MenuItem menuitem1=new MenuItem("Opcion 1");
MenuItem menuitem2=new MenuItem("Opcion 2");
menuitem1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent t) {
System.out.println("Opcion 1");
}
});
menuitem2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent t) {
System.out.println("Opcion 2");
}
});
menu.getItems().add(menuitem1);
menu.getItems().add(menuitem2);
menuBar.getMenus().add(menu);
root.getChildren().add(menuBar);
15. Button (I)
For adding a button:
For adding a button with a description text:
For adding an action for the button:
Button button1 = new Button();
Button button1 = new Button(“Description”);
button1.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent t) {
//action
}
});
16. Button (II)
For setting the position of the button in the scene layout:
button1.setLayoutX(90);
button1.setLayoutY(150);
17. Button with images
We can create a button with a description and a image:
The ImageView class is a graph node (Node) used to display an already loaded
javafx.scene.image.Image object.
Using the ImageView node will enable you to crete
special effects on the image to be displayed without
manipulating the physical Image.
Image img = new Image(getClass().getResourceAsStream("fuego.jpg"));
ImageView imgv= new ImageView(img);
imgv.setFitWidth(40); //We set a width for the image
imgv.setFitHeight(40); //We set a height for the image
Button boton1 = new Button("Generar Incendio",imgv);
18. Label (I)
For adding a label:
Label l1 = new Label(“Label Description”);
l1.setLayoutX(90); //Setting the X position
l1.setLayoutY(60); //Setting the Y position
root.getChildren().add(l1);