Explore the difference between Java helper and utility classes
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Helpful NullPointerExceptions in Java 14
Learn about helpful NullPointerExceptions in Java 14.
Intro to Apache Commons Configuration Project
Apache Commons Configuration can be used to allow us to specify configuration parameters to be loaded at runtime by our application. We look at a few use cases and types of configuration files.
Role-Based Access Control in Quarkus
Explore the RBAC system and learn how to leverage the Quarkus framework to implement it.
BigDecimal equals() vs. compareTo()
Explore the differences between BigDecimal equals() and compareTo() methods.
Calculating Moving Averages in Java
Let’s explore various methods and techniques for calculating moving averages, ranging from traditional approaches to libraries and Stream API’s.
“Not a Managed Type” Exception in Spring Data JPA
Explore the reasons behind the “Not a Managed Type” Exception in Spring Data JPA.
Introduction to Simple Java Mail
Explore the process of setting up Simple Java Mail and learn how to send emails, including attachments and HTML content, handle exceptions, and more.
Different Ways to Use Limit and Skip in MongoRepository
Explore the skip and limit functionalities within MongoRepository.
Print the Default Value When Overriding toString() Method
Learn about overriding the toString() method and handling the potential null within.
PrintWriter write() vs print() Method in Java
Discover the differences between PrintWriter’s write() and print() methods.
Iterator vs forEach() in Java
Learn how to navigate through collections and arrays using the Iterator inteface and forEach() method.
Polymorphism with Gson
A quick and practical guide to handling polymorphic structures with Gson.
Convert Google Protocol Buffer Timestamp to LocalDate
In this tutorial, we learn how to convert a protobuf Timestamp instance to a Java LocalDate.
Code Coverage vs. Test Coverage
A quick tutorial on the differences between code coverage and test coverage.
Introduction to Brave
Explore Brave, a popular distributed tracing instrumentation library in the Java ecosystem.
Intro to the Apache Commons Compress Project
In this tutorial, we explore Apache Commons Compress, a library for file compression, archiving, and extraction. It supports various formats like TAR, ZIP, GZIP, BZIP2, and more.
Create and Run Apache JMeter Test Scripts via Java Program
Learn how to create and execute Apache JMeter test scripts programmatically using the JMeter Java API.
Join Two Tables Using jOOQ
Explore various types of joins available in jOOQ.
