Java Resources

Features to Avoid Null Reference Exceptions in Java and Swift

Want to learn more about how to deal with the NullPointerException? Check out this tutorial on how to avoid null reference exceptions in Java and Swift.

July 29, 2018

by Matthias Webhofer

· 18,198 Views · 4 Likes

Leveraging Lambda Expressions for Lazy Evaluation in Java

Want to learn more about the lazy evaluation in Java? Check out this tutorial on how to use lambda expressions for the purpose of lazy loading data and lazy evaluation.

July 28, 2018

by Grzegorz Piwowarek

· 26,243 Views · 13 Likes

JDK 11: New Default Collection Method toArray(IntFunction) [Snippet]

Check out this post on how to use the new default Collection method toArray(IntFunction) in JDK 11. Click here to get the code now.

July 27, 2018

by Dustin Marx

· 15,244 Views · 5 Likes

20 Useful Libraries Java Programmers Should Know

There are tons of open source libraries out there dedicated to Java development. Check out this post to learn more about the top 20 useful libraries.

July 27, 2018

by Javin Paul

· 260,965 Views · 131 Likes

Unit Testing With Mockito

Learn how to write effective unit tests with the Mockito framework as part of Test Driven Development.

July 26, 2018

by Sukumar Kuppuswamy

· 91,388 Views · 12 Likes

How to Automate a Java Unit Test, Including Mocking and Assertions

Want to learn how to automate a Java Unit Test? Check out this post on how to use mocking, assertions, and the Parasoft Jtest Unit Test Assistant to automate unit tests.

July 26, 2018

by Brian McGlauflin

· 51,508 Views · 16 Likes

Top 20 REST and Spring MVC Interview Questions for Java Developers

What kinds of REST and Spring MVC questions do employers ask in interviews with fellow Java devs? Click here to get familiar with the top 20 questions they asked.

July 26, 2018

by Javin Paul

· 125,933 Views · 37 Likes

How to Migrate Your SOAP Web Service to REST With Camel

This article shows how to use the new wizard to transition from older SOAP-based services to more modern REST-based services.

July 25, 2018

by Brian Fitzpatrick

· 17,682 Views · 6 Likes

Vaadin Flow: A Dev's Thoughts on the Future of Vaadin

With the release of Vaadin 10, this popular web framework brought about many changes to UI building. Check out this post on one developer's thoughts.

July 25, 2018

by Yuriy Artamonov

· 38,273 Views · 27 Likes

Java Data Analysis: Using Cross Tabs

Want to learn more about using data analysis in your code? Check out this tutorial on using cross tabs for data analysis in Java!

July 24, 2018

by Larry White

· 11,965 Views · 6 Likes

8 Reasons to Use Kotlin Over Java for Android Development

What are the biggest advantages of Kotlin over Java? Click here to check out the top eight reason to try Kotlin for Android app development.

July 24, 2018

by Adrian Ababei

· 65,292 Views · 14 Likes

How to Convert List to Map in Java

Want to learn how to convert list to map in Java? Click here to learn how to do this in both Java 7 and Java 8.

Updated July 23, 2018

by Hussein Terek

· 129,143 Views · 26 Likes

How to Implement Spring Security With OAuth2

Want to learn how to implement the OAuth2 authorization with Spring Security? Check out this post to learn how.

Updated July 23, 2018

by Dev Bhatia

· 152,244 Views · 21 Likes

Functional Interface and Lambda Expressions in Java 8

Having trouble with abstract methods in Java 8? Check out this tutorial on using the functional interface and lambda expressions in Java.

Updated July 23, 2018

by Dharmendra Rathor

· 108,347 Views · 15 Likes

Top 19 SOAP Interview Questions

Let's take a look at 19 of the most common SOPA interview questions.

July 23, 2018

by Alex Jones

· 76,492 Views · 11 Likes

Apache Ant 1.9.13 and 1.10.5 Released, Supports Java 11 Single-file Source Programs

Hot off the presses from the JBoss team, take a look at how the latest versions of Apache Ant integrate with Java 11 features.

July 21, 2018

by Jaikiran Pai

· 14,852 Views · 1 Like

How to Use Singleton Design Pattern in Java

There are several ways to use the singleton design pattern. Check out this post on how to use the singleton design pattern through four different methods.

Updated July 20, 2018

by Brijesh Saxena

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