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Great Reads

A Journey to the World of Android Wearable

by ridoy

A brief explanation of application development for Android Wear, helpful for every beginner and intermediate android developer.

Never Buy A Garage Door Remote Again: Open Your Door With Your Android Phone (via Bluetooth)

by raddevus

Steps for building a device you can add to your existing garage door, which implements an atmega328, bluetooth (hc-05) and relay module which will allow you to open your garage door from any paired Android device.

Android Programming By An Example: Creating An Airport Schedule Simulator Application

by Arthur V. Ratz

In this article, we will discuss about the advanced Android application development based on the example of creating a responsive Airport schedule simulator application.

Still Don’t Get the Difference of “Overloading and Overriding”?

by Afzaal Ahmad Zeeshan

This post attempts to describe the general difference between overloading and overriding in Object-oriented programming languages.

Latest Articles

Smart Android Template for Data Performance

by Petrov Vladimir

Smart Android Template for Data Performance with International Signals Code as a Sample

Java Code Change Impact Analysis - Introduction to JCCI

by Oliver Li 2024

Java Code Change Impact Analysis

Wrapping Java with C++ Objects - JNI OOP

by Yochai Timmer

A way to avoid JNI's reflection oriented programming. Wrapping Java with C++

Windows / Android (C#/Java) Compatible Data Encryption with Compression

by JudyL_MD

Code sample for passing encrypted compressed data between Windows and Android

All Articles

Java

Week Numbers According to ISO8601

7 Mar 2010 by Luc Pattyn

This is an alternative to "Week Numbers According to ISO8601".

How to Detect if Client has JavaScript Enabled/Disabled in Backend Server

29 Nov 2017 by Danny Chu

Learn how to detect if client has JavaScript enabled or disabled at your backend webserver

web_application

A quick and easy way to direct Java System.out to File and to Console

17 Jan 2012 by Lodewijk Pool

A quick and easy way to direct Java System.out to File and to Console.

How to Add an AsyncTask to an Android Activity

16 May 2014 by B. Clay Shannon

Step-by-step instructions for adding an Async Task to an Android Activity

Anoncrypt-Text Encryption and Decryption Website in Java (Struts2)

5 Aug 2017 by Rishabh Upadhyay

Anoncrypt by HTCoders is a web-based Text Encryption and Decryption Project developed using Java Technology following Struts2 Framework

How to add external library file in Android Studio

17 Jun 2013 by josh-jw

This article will give you a good idea about adding external jar files in Android Studio.

Android App To Browse A Website

18 Apr 2014 by Garvit Arya

It is a personalized web Browser that can open a certain website directly.

How to Easily Write a User's Guide for Your Application using Different File Extensions

26 May 2018 by Vladan.Obradovic

How to easily write a user's guide for your application using different file extensions

Playing Audio on Android from an HTML5 File

3 Nov 2013 by Kyle A.B.

Learn how to play Audio in an Android app from an HTML5 page in the Apps Assets folder.

Example of Using Google Maps Service and GPS in Android

23 Dec 2014 by joseacl79

Create a Google maps app and add markers on it

A Collection of the Most Useful Droidio (Android Studio) Hotkeys

21 May 2014 by B. Clay Shannon

A potentially-exhausting-but-not-exhaustive list of shortcut key combinations to use in Android Studio

Builder design pattern in Java

30 Sep 2012 by Arpit Mandliya

Explains the Builder design pattern in detail with example.

Reject and Accept an Incoming Call

15 Feb 2014 by Yildirim Kocdag

This article helps you to reject and accept an incoming call for your Android device with functions.

How to Copy the Text of a textbox to Clipboard? - Using JavaScript

11 Oct 2013 by ASP.NET Community

How to copy the text of a textbox to clipboard using JavaScript.

Google App Engine JAVA

11 Jan 2014 by Azhar Mehmood

Google App Engine - JAVA, DataStore implementation using JPA 1.0

Easiest Way to Call a RESTful Method from Android

4 Apr 2014 by B. Clay Shannon

Call a RESTful method from Android without breaking, or in any wise damaging, a sweat

Creating and Invoking an Activity in Droidio (Android Studio)

19 May 2014 by B. Clay Shannon

How to create an Android Activity and its associated Layout file, then invoke (intent) them from another Activity

How to Establish a Different Picture of the Android Camera by Image Processing (Gray and Comic)?

19 Jan 2015 by Lai Taiyu

To establish a different picture of the Android camera by image processing (Gray and Comic)

Build Your Own SDN Network

10 Dec 2015 by JinWenQiang

Get started with your own SDN (Software Defined Network) simulation network

ColoredText - How to Print Colored Text using Java

24 Feb 2022 by Shmuel Zang

Simple Java helper class to print colored text in console window.

Windows / Android (C#/Java) Compatible Data Encryption with Compression

13 Mar 2024 by JudyL_MD

Code sample for passing encrypted compressed data between Windows and Android

Swap Two Numbers without using Temp Variable

18 Feb 2012 by GregEllis

You can do it with some XORs:int a = 25, b = 7;a = a ^ b;b = b ^ a;a = a ^ b;Or the same thing with some shorthand to make the code even harder to read:a ^= b;b ^= a;a ^= b;

Proxy Design Pattern in Java

1 Oct 2012 by Arpit Mandliya

It provides proxy design pattern in detail with example

Android: Activity Life Cycle

4 Sep 2013 by Satyam A.

Here we see how Android Activity LifeCycle works.

How to View SQLite Data from Droidio

7 Apr 2014 by B. Clay Shannon

Step-by-step instructions on how to view SQLite data from Android Studio and SQLite Data Browser

3-Address Code Generator

24 May 2014 by Anurag Saini

A Java program to translate arithmetic expression to three-address codes

Using Hardware Keys on Android for Security Apps

20 Apr 2015 by jit_knit

Using Hardware Keys on Android for Security Apps

A Sample Named "MACTracker" of Floodlight Controller

8 Dec 2015 by JinWenQiang

An instance of Floodlight Controller

Java 9 Flow API vs LMAX Disruptor

30 Apr 2018 by vudangngoc

A quick comparison of Java 9 Flow API and Lmax Disruptor

equals( ) Versus == in Java(Android)

24 Nov 2011 by Jaydeep Jadav

It is important to understand that the equals( ) method and the == operator perform two different operations.

Swap Two Numbers without using Temp Variable

17 Feb 2012 by josh.rendon

That conclusion is definitely wrong. Your equation expanded equals: b = (a+b) - (a-b) = a+b - a + b = 2*bFor your example a=20, b=10b = (20+10) - (20-10) = (30) - (10) = 20b = 20 + 10 - 20 + 10 = 20A counter example to disprove this: a=75, b=88b = (75+88) - (75-88) =...

Virtual Screenshot Manager

7 Jun 2013 by csanuragjain

Captures, searches, and manages all your screenshots in one place.

Customized StickyGridHeaders

13 Sep 2013 by Ahmed Alaa El-Din

I customized StickyGridHeaders to work on any data and group by any data.

Android JSON Parser Java Classes Creator Online Tool

12 Feb 2014 by Sukhpal Singh JNU Jaipur

JSON parser classes creator tool for Android

Android Database Example Project (Thread Safe Version)

13 Jun 2014 by Right Handed Monkey

This is a tutorial for accessing sqlite databases in Android in a thread safe manner. If you download the library code, please bookmark, comment on, or rate the article - it helps out tremendously.

Eclipse Java EventQueue Templates

24 Jul 2014 by Osmund Francis

Creating templates in Eclipse to generate Java EventQueue statements

Vaadin7 jQuery UI Integration

10 Jan 2015 by Aminul Karim

Vaadin7 jQuery UI integration

Android Cards Counter

10 Apr 2015 by ShareIdeas

This Android project can get cards number leveraging the principle of digital image.

How to Create Single Page Applications with PostgreSQL Data Type Jsonb, Play Framework and REST

18 Nov 2015 by Softarex Technologies, Inc.

Step-by-step case shows how to optimize a web application using new technologies which can easily increase the performance

Quick 7-card Poker Ranking in Java

2 Jan 2016 by Member 12234041

Open-sourcing Texas-Holdem 7-card hand-ranking software

Brief Introduction to Functional Programming in Java 8

28 Feb 2016 by Klaus78

In this tip, we explain the basics of functional programming in Java 8.

C# Like Event Handlers Pattern in Java

26 Mar 2017 by Danilow

Simulating C# event handlers in Java

How to inject Spring beans into Servlets

2 Oct 2011 by ludovicianul

web_development

Padovan sequence in core Java

12 Dec 2011 by NikulDarji

Padovan sequence in core Java

Handling Phone Events in Android Programs

19 Sep 2012 by krasnoff

In this article, we will learn to write code which responds to various phone events such as: phone ring, start conversation, start outgoing calls, etc.

Eclipse Protocol Error when Updating, or Installing ADT

10 Oct 2012 by OriginalGriff

If you are trying to follow the instructions on how to get your system up and running with Eclipse, you may get an error when installing ADT

Enabling SSL in Tomcat

21 Dec 2012 by skprasadu

In this article I have demonstrated using a simple Java Keystore to achieve 2 way handshake.

Calling a Webservice from Java using Maven

21 Dec 2012 by skprasadu

This tip shows how you can create stubs for webservices in Java using Maven

Android - To Do\Shopping List

13 Jun 2013 by Deepali Dhingra

This tip explains how to create a to do or Shopping List app with listview, sqlite, dialog and customadapter

Bitmap combination

27 Aug 2013 by huyletran

Create a new bitmap by combining many bitmaps.

Debug Java Code in Java COM Windows Application (Remote Java Debugging)

18 Oct 2013 by Vivek Goyal

Debugging Java JNI and C++ code in COM based application

Roger Rabbit - JUnit Tests Runner Across Multiple Projects

29 Nov 2013 by Effi Bar-She'an, Lital Kornfeld

Running JUnit tests across multiple projects

Finding the Closest Latitude and Longitude in an OpenStreetMap CSV File

2 Dec 2013 by ExcelledProducts CEO

Closest latitude and longitude to a referenced latitude and longitude.

Using XPath to Query the Internet

10 Dec 2013 by Bruce Yang CL

A way to query the data from Internet

How to Setup a Tomcat Cluster in 5 Minutes

27 Jan 2014 by Andrey Chaschev

Describes how to install and use Bear to set up and manage Tomcat cluster

Java Json Parser Online Tool

14 Feb 2014 by Sukhpal Singh JNU Jaipur

Java Json Parser Online Tool

Switching between List Empty and Busy Indicators for Android ListView

24 Feb 2014 by cigwork

I wanted to show a "no data" legend when there's nothing to show for an asynchronously loaded list and a busy indicator whilst items are being sought/loaded.

Create Groovy Classes Dynamically

29 Apr 2014 by Uros Calakovic

Create Groovy classes at run-time and use them from Groovy or Java

Using Bootstrap Carousel Slider in Servoy 7.4

27 Aug 2014 by Dhanabati

Using Bootstrap Carousel Slider in Servoy 7.4

Use Wookie to browse Web in Scala/Java

20 Oct 2014 by Andrey Chaschev

An introduction to the Wookie, a Java/Scala library to automate web browsing.

web_development

Create a LibGDX Game in JRuby

14 Oct 2014 by Uros Calakovic

Use the LibGDX Java gaming framework and JRuby to create a simple 2D game for desktop

Matematico, Android Card Game

7 Dec 2014 by martin.nedopil

Logical card Android game

What Are the Most Important New Features in the Java 8 Release?

13 Jan 2015 by Hadrich Mohamed

This tip shows you the most important new feature in Java 8 release.

FluentJdbc Query API

18 Jan 2015 by mrcellux

FluentJdbc Query API for more convenient native SQL querying

Understanding of the Android DrawingState

8 Apr 2015 by Yesy

Demonstrate how to use the Android drawingstate

Crawling the Web with WebCollector

22 Apr 2015 by CrawlScript

WebCollector is an open source web crawler framework based on Java. It provides some simple interfaces for crawling the Web, you can setup a multi-threaded web crawler in less than 5 minutes.

Java - Sockets and Serialization

13 May 2015 by Jalal Ali

A guide on sockets, and how to send objects across them

Java8: Lambda Expression with Shape Class

10 Oct 2015 by Maximilian1986

Implement the Lambda expression to handle the class Shape in Java8: the power of declaration programming.

Tip: Accessing Newer Android SDK Version APIs Using Java Reflection

9 Oct 2015 by V. Subhash

Android code shortcuts to explore newer SDK APIs

HTTP Proxy Using Play Framework and WS API

28 Oct 2015 by Alexander Iskhakov

Creating a HTTP proxy using Play framework and WS API

Access Genymotion Folders in Windows Explorer/Finder using Smart Disk Pro

2 Dec 2015 by Anele 'Mashy' Mbanga

Explore your Genymotion Device folders

Save Email With Attachment in Outlook's Draft Folder

3 Jun 2016 by Yaseer Mumtaz

This small tip will help you to save email with attachment in Outlook's draft folder using Java programming language.

Simple SMTP Client and POP3 Client in Java

9 May 2016 by Phuong Thanh Nguyen

The programs are for sending and receiving emails

Yet Another Fluent JDBC Wrapper in 200 Lines of Code

19 Feb 2020 by Łukasz Bownik

A fluent JDBC wrapper written in 200 lines of code

Regex+ - Extended Regular Expression Engine

17 Feb 2021 by Mirzakhmet Syzdykov

Description of the newly available Regex+ engine for Java

How to Create an Android Application Widget using the Apache Cordova Plugin ACE

1 Dec 2017 by Silvia Campo

This post contains steps on how to set up an Android application widget in an hybrid mobile application using Apache Cordova and the plugin ACE from Microsoft.

WebDriver and ChromeDriver

20 Apr 2023 by rover tamarys

Chromedriver and how to use it

Another way of Consuming WCF from PHP, iPhone, JavaMobile, JSON clients

27 Sep 2010 by Frozen Rain

There is a simple way to consume WCF from clients which do not support Microsoft's SOAP implementation. It is achieved by using REST to accept data and convert REST calls to SOAP calls with the PHP Framework.

Determine the IP address for any website

17 Jul 2011 by csanuragjain

How to determine the IP address for a website in Java.

ListActivity setSelection within onCreate()

23 Dec 2012 by JIANGWilliam

Specify the displayed position before launching a ListActivity

Android Alphabetic IndexBar Scroller

20 Feb 2013 by Khushboo Kaur

This article would help you develop the Index Bar for Android across all screen resolutions.

InetAddress Java Class

3 Mar 2013 by Marius Iulian Mihailescu

The article describes the use of InetAddress class with short and easy-to-understand examples. I have tried to focus on practical examples showing how we can obtain information about a host. The examples provided in this article are provided from the academic point of view.

Windows-Phone-7

Check whether location services are enabled on Android Phone

1 Apr 2013 by Melih Mucuk

Checking location services are enabled or disabled on android phone.

jvmtop - An open-source console tool to monitor your JVMs

3 Jun 2013 by Mattias Ordboken

jvmtop is a lightweight, open-source console monitoring tool

Software Development and the Bitness Challenge

3 Jun 2013 by citrin

About the bitness challenge in software development

Windows-Installer

Android - To Do\Shopping List [Tip/Trick] - Part 2

13 Jun 2013 by Deepali Dhingra

This tip explains how to create a to do or Shopping List app with listview, sqlite, dialog and customadapter.

Framework for Performing Aggregation and Plain MongoDB Queries in myBatis Style

12 Sep 2013 by dmgcodevil

Framework for performing aggregation and plain MongoDB queries in myBatis style

Add Save functionality in ReportCat

12 Sep 2013 by Shubhashish_Mandal

Add Save functionality in ReportCat, a Java print library.

Using JavaServer Faces with Oracle

18 Sep 2013 by Azim Zahir

This article explains creating a JSF application using NetBeans 7.2.1 and Oracle 11G.

Inspector Gadget - Plugin Loader & Testing Assistant

26 May 2014 by Effi Bar-She'an, Lital Kornfeld

A framework for plug-in loading and a way to load plug-ins in development environment that doesn't require redeployment of the plug-ins

Out of memory issue in MyBatis

9 Mar 2014 by Davinder Singla

This tip is for solving out of memory issue for large result sets in MyBatis

Using getMagicCaretPosition Without Getting Null Value

15 Mar 2014 by Alain Peralta

How to use getMagicCaretPosition without getting null value

Introduction to Play Framework

20 May 2014 by Member 10771162

Introduction to Play framework

Using an Oracle Database Table as a Multithreaded Work Queue

27 May 2014 by Brendan Lester

Use of an Oracle 11g Skip Lock feature to easily implement a scalable, robust work queue

Add Menu Items, and Respond to Them, in Android Activities

4 Jun 2014 by B. Clay Shannon

Wherein the steps to add menu items, and respond to them being selected, is delineated

How to Send Email From an Exception Block in Android

9 Jun 2014 by B. Clay Shannon

Simple code to send email which contains Exception text from a Catch Block

Java Date Generation with Lamma Date Library (1)

5 Aug 2014 by maxcellent

Java date generation with Lamma date library (1)

Enhanced JTabbedPane

2 Sep 2014 by kjburns1980

This tip provides code for an enhanced version of the JTabbedPane which allows the developer to add toolbar buttons to the beginning or end of the tab set.

Manipulate Object Inside a List and Print the Output

22 Sep 2014 by Fabrizio Stellato

Create a JSTL tag for manipulating and print the output of each object inside the list

Interactive Shortest Route Finder using Openlayers

12 Nov 2014 by Nicholas Gandolfo

Using Openlayers to display interactive nodes and links.