Click here to Skip to main content

Submit your article

Java

Java

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

"Secret" Productivity Tips for Visual Studio 2017

7 Apr 2017 by Rion Williams

Here are some "secret" productivity tips for Visual Studio 2017

.NET DateTime, A Tale About Best Practices and Time Travel

26 Oct 2020 by Matteo Prosperi

In this article, we investigate how DateTime issues are avoided.

13 Steps To Make TDD Actually Work

2 Sep 2015 by Bobby Lough

Listed here are 13 steps to make TDD actually work

24 Resharper Tips

6 Oct 2014 by Lee P Richardson

A list of 24 Resharper tips

[OoB] Controlling Gun Turret with Spring Boot REST Service (Java/Arduino)

5 Mar 2015 by morzel

This is the fifth post in my little "Out of Boredom" series dedicated to hobby projects with Arduino.

A .NET Developer’s Journey into Java

21 Jul 2011 by David Truxall

A .NET developer's journey into Java

A Complete Tutorial to Connect Android with ASP.NET Core Web API

21 Jul 2021 by Aram Tchekrekjian

In this tutorial, we will learn how to connect Android with ASP.NET Core Web API.

A Few Words About ConcurrentHashMap, compute() Method

28 Jul 2020 by rtybase

There is one ambiguous moment in the Java documentation of the compute() method from the ConcurrentHashMap class.

A Method for Creating a Human-Readable File Size

23 Aug 2012 by Keyhole Software

A library that would give a human-readable file size if I were to give it a file length.

Access Spring Profiles in JSP using Custom Tag

28 Sep 2016 by Florian Lopes

This post explains how to restrict access to an area, based on active Spring profile.

Accessing Java Classes from Mono for Android via JNI

16 Apr 2012 by Sebastian Krysmanski

This article will show some basic examples of how to call a method of a Java class from Mono for Android.

Adapter Design Pattern in Java

9 Oct 2012 by Arpit Mandliya

CodeProjectReal life example: A very simple example is using phone charger.

Adding Facebook Login to Android App

20 Jul 2016 by Andy Point

Integrating Facebook Login to Android Application. Now a days almost every web and mobile app provides an option to Login with Facebook. This is because most of the people have a facebook account and facebook has provide an easy to integrate SDK to add Facebook Login to your mobile app.

Adding Google Login to Android App

28 Aug 2016 by Andy Point

Today Almost all web and mobile apps come with Google and Facebook Login, This is a really useful feature for both the app developer and the user, since almost everybody tend to have a google/gmail and facebook account and moreover while logging in with google you don’t need to remember your UserId

Amazon Web Services Simple Queue Service (AWS SQS) Using the Java 2 Software Development Kit

6 Apr 2020 by James A. Brannan

Introduction AWS SQS Message Queues are a way to exchange messages between applications. Senders, send data objects to a queue and receivers, receive objects from a queue.

Amazon’s AWS S3 Java API 2.0 (Using Spring Boot as Client)

21 Apr 2019 by James A. Brannan

In this tutorial, we explore creating, reading, updating, listing, and deleting objects and buckets stored in S3 storage using the AWS Java SDK 2.0 to access Amazon’s Simple Storage Service (S3).

An Efficient Way to Make Button Color Change on Android

5 Jul 2015 by Andrey Moskvichev

This is an efficient way to make button color change on Android

An Introduction to Bitronix JTA Transaction Manager with MySQL

6 Jan 2011 by Bikash Shaw

An Introduction to Bitronix JTA Transaction Manager with MySQL

An Introduction to Design Pattern - Part 2

22 May 2011 by sayem.bd

This article is the second part of a series of articles which will try to explain the basics of design patterns.

An Introduction to Design Pattern – Part 1

28 May 2011 by sayem.bd

This article is the first part of a series of article which will try to explain the basics of design patterns

Android - Programmatically Register System Broadcast Receiver at Runtime

9 Oct 2017 by Right Handed Monkey

How to programmatically register system broadcast receiver at runtime in Android

Android CardView Tutorial

21 Jul 2016 by Andy Point

Android CardView Tutorial We have already discussed about RecyclerView in the following tutorial Listing Items using RecyclerView and shown a recyclerview example in android studio. Today we will discuss about CardView in Android SDK which was introduced with the android material design through the

Android Database Example and Tutorial (Thread Safe Version)

15 Jun 2014 by Right Handed Monkey

Android Database Example and Tutorial (thread safe version)

Android Download Manager Tutorial: How to Download Files using Download Manager from Internet

17 Jul 2016 by Andy Point

Android Download Manager Tutorial: How to download files using Download Manager from the Internet

Android Drawing App Tutorial – Pt. 1

31 Oct 2015 by Val Okafor

In this blog post, I will show you how to create Android drawing app. This blog post is part one of a two part tutorial series where I will show you how to create simple but delightful Android drawing app.

Android Drawing App Tutorial – Pt. 1

18 Nov 2015 by Val Okafor

In this blog post, I will show you how to create Android drawing app. This blog post is part one of a two part tutorial series where I will show you how to create simple but delightful Android drawing app.

Android Drawing App Tutorial – Pt. 2

4 Nov 2015 by Val Okafor

This blog post is part two of my Android Drawing App tutorials. It is strongly encouraged that you finish part one of this tutorial before proceeding with this one.

Android Firebase Cloud Messaging Tutorial

29 Aug 2016 by Andy Point

Android Firebase Cloud Messaging Tutorial Hello Developers, We are back with a new android firebase tutorial. This time we will discuss about Firebase Cloud Messaging (FCM). We will be using Firebase to add cloud messaging in android app. What is Firebase Cloud Messaging? Firebase Cloud Messaging is

Android Flash Light Application Tutorial Using Camera2 API

17 Jul 2016 by Andy Point

Android Flash Light Application Tutorial Using Camera2 API

Android Horizontal ListView Tutorial

4 Nov 2016 by Andy Point

In this horizontal listview Android example, we will discuss how to create a horizontal listview using RecyclerView.

Android iText Pdf Example

28 Apr 2015 by Val Okafor

This blog post stems from my recent experience building my soon to be released Invoicing app. I waited until the last minute to integrate PDF hoping that there is a magical boolean I can set to true and voila, my deeply nested view will be converted to PDF.

Android Lists: ListActivity and ListView I – Basic Usage

19 Apr 2011 by Austin Rasmussen

The Android ListActivity makes it simple to display a list of items in your application.

Android Lists: ListActivity and ListView II – Custom Adapter and List Item View

19 Apr 2011 by Austin Rasmussen

Continued from: Android Lists: ListActivity and ListView I.

Android Live Wallpaper Tutorial

13 Mar 2017 by hexgear

I this post I will describe how I put together the live wallpaper.

Android Material Design: Working with Floating Label EditText

17 Jul 2016 by Andy Point

Android Material Design: Working with Floating Label EditText

Android Networking Example and Tutorial (with easy retries)

19 Feb 2015 by Right Handed Monkey

This post explains how to use the WorxForUs Network framework to have an Android app that works robustly even in areas that have poor network connectivity.

Android Parsing JSON

14 Jul 2017 by hexgear

In this article, I will share how to parse JSON using JSON-Java in Android, however the snippet is not limited to Android only.

Android Picasso Tutorial Using Picasso Android Library

1 Nov 2016 by Andy Point

In this post, we will discuss how to use picasso in Android studio to download images over network by creating a Picasso Android app.

Android Spinner Tutorial

1 Nov 2016 by Andy Point

In this Android Spinner Tutorial, we will learn how to make an Android spinner which will allow us to select an item from a drop down menu in Android.

Android SQLite for Beginners

17 Sep 2015 by Val Okafor

In this post, I will cover the fundamentals of Android SQLite from a beginners perspective. In the next post I will provide a similar introduction to Content Provider and in the last part of the series I will show how to use Android SQLite and Content Provider to build a Note taking app.

Android SQLite for Beginners

20 Nov 2015 by Val Okafor

Android SQLite for beginners

Android: ipPrint4 Print Label/Receipts to IP Printer

11 May 2014 by hjgode

Android: ipPrint4 Print Label/Receipts to IP Printer

Anonymous Classes vs. Delegates

8 Mar 2011 by kb-boxer

Sometimes, less syntactic noise is a good feeling for a programmer. I am not doing a language war here. I am just trying to vote for delegates in Java.

Apache Commons EqualsBuilder and HashCodeBuilder

6 Jan 2011 by Bikash Shaw

Apache Commons EqualsBuilder and HashCodeBuilder

ASO – App Store Optimization for Beginners

27 Jul 2015 by Isaac RF

ASO – App Store Optimization for Beginners

Avoid Comparing strings with == in Java

19 Nov 2013 by Andrei Ion Rînea

Avoid comparing strings with == in Java

Avoiding Kotlin Minefields in Apache Beam

18 Jun 2020 by Rion Williams

How to avoid Kotlin minefields in Apache Beam

AWS Key Management System ( AWS KMS) to Encrypt and Decrypt Using the AWS Java 2 SDK

5 Apr 2020 by James A. Brannan

Exploring AWS KMS to encrypt and decrypt data via the AWS Java 2 SDK

AWS Key Management System (KMS) to Encrypt and Decrypt Using the ASW Java 2 SDK

17 Jun 2019 by James A. Brannan

Exploring the AWS Key Management System (KMS) to encrypt and decrypt data via the AWS Java 2 SDK

Better Java Hot Code Replace At No Cost

21 Jul 2015 by Member 11794279

Better Java Hot Code Replace at no cost

Beware of Primitive Wrappers in Java

21 Nov 2013 by Andrei Ion Rînea

Beware of primitive wrappers in Java

Breaking Dependencies to Test Code in Java: Irritating Parameter

18 Aug 2014 by Seb Carss

How to break dependencies to test code in Java: Irritating Parameter

Builder

6 Feb 2010 by Andriy Buday

Builder GoF Design patter with Java. Build your laptop example.

Building Glassware with the Xamarin Android and Google’s GDK

21 Nov 2013 by Lewis Benge

Building Glassware with the Xamarin Android and Google's GDK

Building Vagrant Boxes with VeeWee on TravisCI

6 Dec 2012 by Keyhole Software

How to build Vagrant Boxes with VeeWee on TravisCI

Capture picture on Webpage with Java Backend

27 May 2011 by AshwinRayaprolu

How to capture picture on Webpage with Java Backend

2 Jun 2016 by Grzegorz @ tidyjava.com

Clojure language introduction for Java (and similar languages) programmers

Code jam "Minimum Scalar product" solution in Java

26 Mar 2013 by ladv02

"Minimum Scalar product" solution in Java.

Code Jam Store Credit Solution in Java

26 Mar 2013 by ladv02

Store credit solution in Java

Code Review Guidelines – Part 2

29 Jan 2013 by ludovicianul

The most used tools for Java projects.

Collectors Part 1 – Reductions and Short-Circuiting Operations‏

14 Aug 2014 by TheCannyCoder

Reductions and Short-Circuiting Operations

Collectors Part 2: Provided Collectors and a Java 8 Streams Demonstration

5 Mar 2018 by TheCannyCoder

Provided Collectors and a Java 8 Streams demonstration

Common Problems in Xamarin.Android and their Solutions

20 Feb 2017 by Afzaal Ahmad Zeeshan

In this article, I cover the most widely faced problems in Xamarin installation and setup for Android application development.

Component-Based Java Frameworks

23 Aug 2012 by Keyhole Software

Component based Java frameworks.

Composite Design Pattern in Java

9 Oct 2012 by Arpit Mandliya

CodeProjectComposite design patten allows you to have a tree structure and ask each node in the tree structure to perform a task.You can take real life example of a organization.It have general managers and under general managers, there can be managers and under managers there can be developer

Constructors Don’t Get Better With Age!

13 Dec 2013 by ludovicianul

Constructors do not get better with age

Convert a Double to String: M3

12 Feb 2013 by Kelum W. Ganegoda

Code to convert/format numeric value to alpha value in M3.

CORBA - Manipulating Naming Service

19 May 2012 by hoonzis

This is a short post describing how to implement a simple tool to manage CORBA Naming Service.

Create a Live Aquarium Wallpaper in Android

29 Oct 2011 by Rajeesh.C.V

Android development - Aquarium Live wallpaper

Create and Publish Your First Android App – Part 1

31 May 2015 by Val Okafor

Today, I am beginning a four part Android tutorial series where I will provide step by step guide on how to create and publish your first Android app.

Create and Publish Your First Android App – Part 2

2 Jun 2015 by Val Okafor

How to create and publish your first Android app

Create Your First Android App – Part 3

13 Jul 2015 by Val Okafor

CodeProject This post is part 3 of a three part Android development tutorial series where I provide a walk-through on how to create and publish your first Android app.

Creating Logs in Android Applications

4 Mar 2014 by Cindy Potvin

How to create logs in Android applications

Creating Your Own Java Annotations

21 Jul 2014 by Keyhole Software

How to create your own Java annotations

Dependency Inversion in Java

7 Apr 2016 by Grzegorz @ tidyjava.com

Beginner guide to using the power of Dependency Inversion with examples in Java. Covers dependency injection, using abstractions and adapter pattern.

Dependency Inversion principle (DIP)

23 Jul 2012 by loki2302

Depend explicitly, require explicitly, but only require what you really need.

Deploying Grails with Groovy

17 Apr 2009 by Matt Stine

Deploying Grails with Groovy

Detecting Incoming and Outgoing Phone Calls on Android

13 Mar 2013 by Andrey Moskvichev

In this article, I'll show you how to detect incoming and outgoing phone calls on the Android platform.

Difference between Comparator and Comparable in Java

25 Mar 2013 by Arpit Mandliya

Difference between Comparator and Comparable in java

Difference between Random, SecureRandom and ThreadLocalRandom

12 Feb 2023 by Divya Ulasala

Examining the differences between java.util.Random, java.security.SecureRandom, and java.util.concurrent.ThreadLocalRandom to generate random numbers

Differences in Java and C#: protected

10 Dec 2017 by morzel

Differences in Java and C# - protected

Displaying Bitmaps Efficiently on Android Apps

24 Aug 2016 by Isaac RF

To create visually engaging apps, displaying images is a must. Learn to display Bitmaps Efficiently on your Android apps, without giving away performance. The post Displaying Bitmaps Efficiently on Android apps appeared first on Isaac RF.

Don’t Just Randomize, Truly Randomize!

29 Sep 2014 by Keyhole Software

Don't just randomize, truly randomize

Drawing in Android

29 Nov 2012 by Serge Desmedt

2D Drawing in Android

Drupal with Android Integration: Make Posts and Upload Photos - Part I - Drupal

13 Mar 2013 by Andrey Moskvichev

Make posts and upload photos

Duck Typing in Java

20 Jan 2015 by mrcellux

Duck typing in Java

Dynamic Three Dimensional Arrays in C\C++\C#\Java

24 May 2010 by Ali BaderEddin

Implementing a three dimensional array dynamically in C, C++, C# and Java

Eccentricity in Programming Languages

21 Feb 2013 by Mukit, Ataul

Eccentricity in programming languages

Emulate the internal keyword in Java

4 Apr 2013 by Issam Lahlali

Emulate the internal keyword in Java

Enable Syntax Highlighting in Nano for Java Server Pages (JSP)

31 Oct 2023 by ToughDev

Create custom nanorc file for JSP in nano to enhance syntax highlighting and readability, along with basic autocomplete

Enum – Comparison of Java and .NET

27 Nov 2013 by Andrei Ion Rînea

A useful feature added in Java 1.5 (also known as J2SE 5.0, 2004) is the enum. This post makes a comparison of Java and .NET enums.

Exception Smells

20 Jan 2015 by mrcellux

Exception smells

Exploit better the results of Pmd, Findbugs and CheckStyle.

27 Nov 2013 by Issam Lahlali

Many Java static analysis tools exist right there, each one focus on a specific area and has its advantages, we can enumerate: Pmd which is a static rule-set based Java source code analyzer that identifies potential problems like: Possible bugs—Empty try/catch/finally/switch blocks.

Facebook Hacker Cup: "Double Squares" Solution in Java

26 Mar 2013 by ladv02

Facebook Hacker Cup: "Double squares" solution in Java

Facebook Hacker Cup: "Studious Student" Solution in Java

26 Mar 2013 by ladv02

"Studious Student" solution in Java.

Factoring Big Numbers and RSA

7 Aug 2012 by rtybase

A short article showing how not to RSA

Few Words about ConcurrentHashMap

21 Dec 2017 by rtybase

An use case for ConcurrentHashMap

Fill Bean Data from HashMap using Reflection

1 Jun 2014 by Debopam Pal

This example shows how to fill the values in a bean from a HashMap using Reflection.

Find Middle of a Linked List with One Pass/Loop (Pseudo Code/Java/JavaScript)

25 Jun 2015 by Bobby Lough

Find middle of a Linked List in one pass/loop (Pseudo code/Java/JavaScript)

Find the First Spaghetti

11 Feb 2015 by mrcellux

Find the first spaghetti