LWUIT is a lightweight UI toolkit for creating attractive user interfaces on mobile devices without the complexity of Swing. It provides basic components, flexible layouts, themes, animations and event handling. RMS provides storage capabilities by storing records in binary format in record stores that persist even when the device is turned off. Connections in Java ME allow accessing the wireless network through sockets, datagrams or HTTP using input/output streams.
Introdução à programação orientada para aspectos em AspectJ. Diapositivos de seminário realizado no contexto da disciplina de Engenharia do Software II, DCTI, ISCTE-IUL.
An overview how to realize code generation of languages on the JVM that implement other class layouts than the Java programming languages. As an example, the inline-mock-maker for Mockito is discussed which supports languages like Kotlin that make any property final by default.
Мы поговорим о новых возможностях Open Source фреймворка JDI для Автоматизации UI Тестирования. Архитектор проекта расскажет «всю правду» о своем детище, а мы послушаем, сделаем выводы и, возможно, используем это решение для нашего следующего проекта.
JEEConf 2017 - The hitchhiker’s guide to Java class reloadingAnton Arhipov
In Java, a typical workflow involves restarting the application (almost) with every class change. For some applications it is not a problem at all, for some – it is a disaster.
From HotSwap to agent-based reloading. In this session, we are going to take a look at the options available for Java class reloading. There is plenty of tools that you can use for this task: rely on standard JVM HotSwap, redesign your application to rely on dynamic class loaders, to comprehend the Zen of OSGi, or to integrate a reloading agent. Every option has its own drawbacks and benefits and we’re going to take a deep dive on the subject.
Finally, there are also the conceptual challenges in reloading Java classes. What to do with the state? What should happen with the static initialisers? What if super class changes? Join this session to gain a better understanding of class reloading technologies and become more productive Java developer.
Introdução à programação orientada para aspectos em AspectJ. Diapositivos de seminário realizado no contexto da disciplina de Engenharia do Software II, DCTI, ISCTE-IUL.
An overview how to realize code generation of languages on the JVM that implement other class layouts than the Java programming languages. As an example, the inline-mock-maker for Mockito is discussed which supports languages like Kotlin that make any property final by default.
Мы поговорим о новых возможностях Open Source фреймворка JDI для Автоматизации UI Тестирования. Архитектор проекта расскажет «всю правду» о своем детище, а мы послушаем, сделаем выводы и, возможно, используем это решение для нашего следующего проекта.
JEEConf 2017 - The hitchhiker’s guide to Java class reloadingAnton Arhipov
In Java, a typical workflow involves restarting the application (almost) with every class change. For some applications it is not a problem at all, for some – it is a disaster.
From HotSwap to agent-based reloading. In this session, we are going to take a look at the options available for Java class reloading. There is plenty of tools that you can use for this task: rely on standard JVM HotSwap, redesign your application to rely on dynamic class loaders, to comprehend the Zen of OSGi, or to integrate a reloading agent. Every option has its own drawbacks and benefits and we’re going to take a deep dive on the subject.
Finally, there are also the conceptual challenges in reloading Java classes. What to do with the state? What should happen with the static initialisers? What if super class changes? Join this session to gain a better understanding of class reloading technologies and become more productive Java developer.
This talk describes building Silverlight 3 applications using F#. Both Visual Studio 2008 and 2010 RC are demonstrated. This talk was given by Talbott Crowell at the F# User Group meeting on April 4, 2010 at Microsoft, Cambridge, MA.
Guide to Generate Extent Report in KotlinRapidValue
Kotlin is a general-purpose, open-source, statically typed programming language that combines object-oriented and functional programming features. So, it is a strong and powerful language that helps the automation engineers to write their automation scripts and also develop the Extent Report. This article helps the automation engineers to up skill and develop the extent reports using a different language like Kotlin.
In this talk I demonstrated how easy Dojo is integrating into the Adobe AIR runtime. Using a performance analysis tool I demonstrated how to use charting, grids and other features of Adobe AIR and the Dojo Toolkit
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.
Not Just a contact, at daroko Blog (www.professionalbloggertricks.com/),you are also being taught how you can apply all IT related field in real world.
Simply Google, Daroko Blog or visit (www.professionalbloggertricks.com/) to Know More about all these service now.
Do not just learn and go, apply them in real world.
How to become an Android dev starting from iOS (and vice versa)Giuseppe Filograno
Starting from my working experience I want to describe the similarities between Android and iOS platforms, demonstrating that these worlds are not so far!
This slides was presented for the first time at the Google DevFest Milano 2018
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These are the slides from my YUI3 presentation at Open Hack Day in London.
Code demo can be found here:
http://blog.davglass.com/files/openhackday/openhackday/code/photos/
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Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
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GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
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1. JAVA ME LWUIT, STORAGE & CONNECTIONS Fafadia-Tech PrasanjitDey prasanjit@fafadia-tech.com
2. LWUIT The Lightweight User Interface Toolkit (LWUIT) is a versatile and compact API for creating attractive application user interfaces for mobile devices LWUIT provides sophisticated Swing-like capabilities without the tremendous power and complexity of Swing LWUIT offers a basic set of components, flexible layouts, style and theming, animated screen transitions, and a simple and useful event-handling mechanism LWUIT is developed by Sun Microsystems and is inspired by Swing
3. Key Features Layouts Manager Pluggable Look and Feel & Themes Fonts Touch Screen Animations & Transitions 3D and SVG Graphics Integration Tools Bi-directional text support
4. Simple Lwuit Program import javax.microedition.midlet.*; import com.sun.lwuit.*; // imports LWUIT import com.sun.lwuit.layouts.BorderLayout; import com.sun.lwuit.plaf.UIManager; import com.sun.lwuit.util.Resources; import java.io.IOException; public class Hello extends MIDlet implements ActionListener { public void startApp() { Display.init(this); // initializes the display try { // using a theme here Resources r = Resources.open("/res/ThemeJava1.res"); UIManager.getInstance().setThemeProps(r.getTheme("ThemeJava1")); } catch (IOExceptionioe) { // Do something here. }
5. Continued Form f = new Form("Hello, LWUIT!"); f.addComponent("Center",new Label("Prasanjit's j2me apps ")); f.show(); // display the form Command exitCommand = new Command("Exit"); f.addCommand(exitCommand); f.setCommandListener(this); } public void pauseApp() { } public void destroyApp(boolean unconditional) {} public void actionPerformed(ActionEventae) { notifyDestroyed(); } }
6. Output Download the LWUIT zip from http://sun.java.com/javame/technology/lwuit and add it to your project /resources directory, also add all your themes, images and other resources in a folder, zip it and add to your project/resources directory.
7. Simple Layout Example import javax.microedition.midlet.*; import com.sun.lwuit.layouts.BoxLayout; import com.sun.lwuit.plaf.UIManager; import com.sun.lwuit.util.Resources; import com.sun.lwuit.events.ActionListener; import com.sun.lwuit.events.ActionEvent; import java.io.IOException; public class Layouts extends MIDlet implements ActionListener { Form form; Command exit; public void startApp() { Display.init(this); try { Resources r = Resources.open("/res1/ThemeJava2.res"); UIManager.getInstance().setThemeProps(r.getTheme("ThemeJava2")); } catch(IOExceptionioe) { System.out.println(ioe); } form = new Form("Layouts ");
8. Continued // adding 5 buttons on the form along with a command Container buttonBar = new Container(new BoxLayout(BoxLayout.X_AXIS)); buttonBar.addComponent(new Button("Add")); buttonBar.addComponent(new Button("Remove")); buttonBar.addComponent(new Button("Edit")); buttonBar.addComponent(new Button("Send")); buttonBar.addComponent(new Button("Exit")); exit = new Command("Exit"); form.addComponent(buttonBar); // buttonBar is a container for other buttons form.addCommand(exit); form.setCommandListener(this); form.show(); public void pauseApp() {} public void destroyApp(boolean unconditional) {} public void actionPerformed(ActionEventae) { notifyDestroyed(); } }
9. Simple Event Handling import javax.microedition.midlet.*; import java.io.IOException; import com.sun.lwuit.*; import com.sun.lwuit.events.*; import com.sun.lwuit.plaf.UIManager; import com.sun.lwuit.util.Resources; public class EventHandling extends MIDlet implements ActionListener { Form form; int c = 1000; Label l1; Button b1,b2; public void startApp() { Display.init(this); try { Resources r = Resources.open("/res1/ThemeJava2.res"); UIManager.getInstance().setThemeProps(r.getTheme("ThemeJava2")); } catch(IOExceptionioe) { System.out.println(ioe); }
10. Continued Form = new Form("Event handling"); l1 = new Label(" "); b1 = new Button("Change label to add "); form.addComponent(b1); form.addComponent(l1); form.show(); b1.addActionListener(this); } public void pauseApp() { } public void destroyApp(boolean unconditional) { } public void actionPerformed(ActionEventae) { c++; l1.setText("" +c); form.layoutContainer(); } }
11. Storage Record Management System or rms is used to provide the storage capabilities in Java ME It stores records in binary format inside the Record Stores Data is not lost even if the device is switched off rms provides various methods for storing and retrieving records: openRecordStore() closeRecordStore() deleteRecordStore() getRecord() enumerateRecords()
12. rms Example import java.io.*; import javax.microedition.midlet.*; import javax.microedition.rms.*; // imports all rms resources public class rmsDemo extends MIDlet { intsize_available, id; RecordStorers; public rmsDemo() { openStore(); // open recordstore addRecord(); // adds record into recordstore getRecord(); // gets all rcords closeStore(); // closes the recordstore } public void startApp() {} public void pauseApp() {} public void destroyApp(boolean unconditional) {} public void openStore() { try { rs=RecordStore.openRecordStore("names",true); size_available=rs.getSizeAvailable(); System.out.println("Start"); System.out.println("Available size is " +size_available); }
13. Continued catch(Exception e) { System.out.println(e); } } public void closeStore() { try { rs.closeRecordStore(); } catch(Exception e) { System.out.println(e); } } public void addRecord() { try { String record="java ME persistent storage"; byte data[]=record.getBytes(); // converts into bytes of data id=rs.addRecord(data,0,data.length); } catch(Exception e) { System.out.println(e); } }
14. Continued public void getRecord() { try { byte getData[]= rs.getRecord(id); // gets the record System.out.print("Records in byte format: "); for(int j=0;j<getData.length;j++) { System.out.print(getData[j]); System.out.print(" "); } System.out.println(); System.out.print("Records in string format: "); for(inti=0;i<getData.length;i++) { System.out.print(new String(new byte[]{getData[i]})); } System.out.println(); System.out.println("Done with it"); } catch(Exception e) { System.out.println(e); } } }
15. Connections All the important classes and methods for connecting the to the wireless network are included in the javax.microedition.io.* package The connections types are provided by the InputStream and the OutputStream interfaces These interfaces adds the ability to input and output data over the network There are three important level of connections available Socket Datagram HTTP connection
16. Http Example In this program, we create a form and add a command to it. On clicking the command, the data from the url is displayed on the device. Here is the actual thread to display the data on the device. public void commandAction(Command c, Displayable d) { if(c==exit) { destroyApp(true); notifyDestroyed(); } else { new Thread(new Runnable() { public void run() { try { HttpConnectionconn = null; String url = "http://www.burrp.com/robots.txt"; InputStream is = null; try {
17. Continued conn = (HttpConnection)Connector.open(url); conn.setRequestMethod(HttpConnection.GET); conn.setRequestProperty("User-Agent","Profile/MIDP-2.1 Confirguration/CLDC-1.1"); intrespCode = conn.getResponseCode(); if (respCode == conn.HTTP_OK) { StringBuffersb = new StringBuffer(); is = conn.openDataInputStream(); intchr; while ((chr = is.read()) != -1) sb.append((char) chr); form.append("Here is the records from www.burrp.com: " + sb.toString()); } else { System.out.println("Error in opening HTTP Connection. Error#" + respCode); } } catch(Exception e) { System.out.println(e); }