Java Resources

Our goal with implementing these APIs is to improve your reach and flexibility on online media platforms, to better interact with your target audience.

October 27, 2020

by Brian O'Neill

CORE

· 7,254 Views · 2 Likes

How to Encrypt PDF Documents in Java

The goal of this tutorial is to enable you with the capabilities to protect your information and important documents with the appropriate tools.

October 27, 2020

by Brian O'Neill

CORE

· 4,569 Views · 1 Like

Step By Step Guide To Using Mule ESB

A step-by-step guide of the installation and use of Mulesoft/Mule ESB, a lightweight and Java-based ESP and integration platform by Mulesoft, for beginners

October 26, 2020

by Anurag Sharma

· 9,786 Views · 8 Likes

How to Convert a PDF to PNG or JPG in Java

This tutorial shows how to convert any PDF document to a stacked PNG image or PNG or JPG array with one image per page, using an API.

October 23, 2020

by Brian O'Neill

CORE

· 14,837 Views · 4 Likes

How to get Type-Safe and Intuitive Hibernate/JPA Queries

Learn how to use standard Java streams which automatically convert themselves to Hibernate/JPA Queries.

Updated October 22, 2020

by Per-Åke Minborg

· 9,411 Views · 7 Likes

Using Filter Design Pattern In Java

How to use filter design pattern in Java—also known as Criteria Design Pattern, which is a structural pattern that combines multiple criteria to obtain single criteria.

October 22, 2020

by Brijesh Saxena

CORE

· 23,835 Views · 7 Likes

10 Examples of ConcurrentHashMap in Java

Below are some of the frequent operations around Java's ConcurrentHashMap, like how to create a ConcurrentHashMap, how to update a key or value.

Updated October 22, 2020

by Javin Paul

· 17,136 Views · 6 Likes

Using Flyweight Design Pattern In Java

In this article, explore the Flyweight design pattern in Java.

October 22, 2020

by Brijesh Saxena

CORE

· 7,744 Views · 6 Likes

How to Embed a jBPM Process in a Java EE Application

In this article, see a tutorial on how to embed a jBPM process in a Java EE application.

October 22, 2020

by Amit Nijhawan

· 6,702 Views · 2 Likes

Command Design Pattern In Java

Here, we'll discuss the Command Design Pattern — a useful pattern in which we wrap a request in an object known as Command and give it an Invoker to perform.

Updated October 22, 2020

by Brijesh Saxena

CORE

· 7,160 Views · 6 Likes

How to Convert a URL to PNG in Java

Our input will be the URL of the web page we want to capture, any extra loading wait, and the desired size parameters for your output.

October 21, 2020

by Brian O'Neill

CORE

· 4,919 Views · 1 Like

Spring Reactive Microservices: A Showcase

A road-map to developing Reactive Microservices in Spring. We combine material from various official and 3rd party sources and our personal experience.

Updated October 21, 2020

by Kyriakos Mandalas

CORE

· 21,609 Views · 16 Likes

Using Proxy Design Pattern In Java

Today, I will discuss another structural design pattern - Proxy Design Pattern. Proxy means an object functioning as another object.

October 20, 2020

by Brijesh Saxena

CORE

· 11,528 Views · 13 Likes

What's Wrong With Big Objects In Java?

The G1 garbage collector, despite its advantages, is currently not good at handling bigger objects, called Humongous. Learn how to diagnose and fix the problem.

October 20, 2020

by Misha Dmitriev

· 14,774 Views · 15 Likes

Minions in Minikube - A Kubernetes Intro for Java Developers

Java developers, it would be despicable not to take a look at this cute project that will give you a hands-on introduction to Kubernetes.

Updated October 20, 2020

by Ryan Dawson

· 15,355 Views · 20 Likes

Configuring Java Apps With Kubernetes ConfigMaps and Helm

This tutorial will show you how to develop Java microservices that use ConfigMaps, see how ConfigMaps are used, and update them in the app.

Updated October 20, 2020

by Ryan Dawson

· 82,073 Views · 18 Likes

Composite Design Pattern in Java

Want to learn more about the composite design pattern in Java? Take a look at this tutorial to learn how to implement this design pattern in your project.

Updated October 20, 2020

by Brijesh Saxena

CORE

· 63,030 Views · 18 Likes

How to Scan a Barcode Image in Java

Use an API to scan or look up a barcode. Supported barcode types include AZTEC, CODABAR, CODE_39, CODE_93, CODE_128, DATA_MATRIX, EAN_8, EAN_13, ITF, MAXICODE, PDF_417, QR_CODE, RSS_14, RSS_EXPANDED, UPC_A, UPC_E, All_1D, UPC_EAN_EXTENSION, MSI, PLESSEY, and IMB.

October 20, 2020

by Brian O'Neill

CORE

· 11,304 Views · 1 Like

State Design Pattern In Java

State Design Pattern — a behavioral design pattern that allows an object to change its behavior when its internal state changes.

October 19, 2020

by Brijesh Saxena

CORE

· 5,040 Views · 6 Likes

Tracking Changes in MongoDB With Scala and Akka

Leverage change streams feature in MongoDB to get every change occurring in real-time.

Updated October 16, 2020

by Hubert Skowronek

· 8,635 Views · 4 Likes

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