Discover the steps to migrate your application from Spring Security 5 to 6 with Spring Boot 3 for enhanced security.

Learn how to find the parent of a node in a Binary Search Tree (BST) using Java. Understand efficient tree traversal techniques.

Java GraphQL Mutation No Return Data: Execute mutations without returning data. Efficient and concise operations.

Learn how to implement the publisher-subscriber pattern in Spring Boot applications using AWS SNS and SQS. This article guides you through configuration details using Spring Cloud AWS, IAM and resource policies, and local development using LocalStack.

Java Flatbuffers Serialization: Efficient Java serialization with FlatBuffers: high performance, minimal overhead.

Interested to learn more about Convert Excel to Json? Check our article explaining how to convert excel to Json with Apache POI and all the available tools!

Spring Boot & Databases: Stop Struggling, Start Connecting! Master the art of connecting your Spring Boot app to popular databases

Want to write unit tests that are crystal clear and a breeze to maintain? Unleash the power of AssertJ! This guide explores tips and tricks!

Java Add Elements Collection: Efficiently add elements to collections in Java with ListIterator, enhanced loops, and Java 8 Stream API.

Interested to learn more about openapi generator custom templates? Then check out our detailed example on OpenAPI Generator Custom Templates!

1. Introduction Spring Security AuthorizationManager is part of Spring Security that is an extension of the Spring Framework that supports common

Learn efficient "Simplified Array Operations on JsonNode in Jackson" for streamlined JSON handling in Java. Discover techniques to work with JSON arrays seamlessly using Jackson's JsonNode abstraction without the need for typecasting.

Explore several approaches to removing all characters before a specified character in a string.

Learn how to convert a two-dimensional array into a one-dimensional, which is commonly known as flattening.

Learn how to find the index of the smallest element in an array.

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.

Learn everything you need to know about java.security.UnrecoverableKeyException - what causes it and how to fix it.

Learn how to convert from an int primitive to a short primitive in Java.

Learn how to get the 2’s complement of a number in Java.

Learn how to create a HashMap with a string's character count.