Learn how to compare primitives and numbers of different classes, such as Integers, Longs, and Floats.
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Spring WebClient exchange() vs retrieve()
In this article, we explore the key methods from the WebClient interface, including retrieve(), exchangeToMono(), and exchangeToFlux().
Resolving Security Exception: java.security.UnrecoverableKeyException: Cannot Recover Key
Learn everything you need to know about java.security.UnrecoverableKeyException – what causes it and how to fix it.
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.
Get Nextval From Sequence With Spring JPA
Explore a few approaches for fetching the next value from a database sequence using Spring Data JPA.
Setting Default TimeZone in Spring Boot Application
You may wish your Spring Boot application to run with a timezone different from your machine’s default. In this tutorial, you can learn to configure this at different points during Spring’s startup.
Continue the Test Even After Assertion Failure in TestNG
Learn how to make multiple assertions using TestNG’s SoftAssert and find out why that is a valuable tool for writing clean tests with reduced debugging time.
Role-Based Access Control in Quarkus
Explore the RBAC system and learn how to leverage the Quarkus framework to implement it.
Unit Test for hashCode() in Java
Explore the importance of unit testing for the hashCode() method in Java.
BigDecimal equals() vs. compareTo()
Explore the differences between BigDecimal equals() and compareTo() methods.
How to Fix EOFException in Java
In this quick tutorial, we learn how to fix the java.io.EOFException, a special type of IOException.
Convert String to OffsetDateTime
Learn why converting strings to OffsetDateTime objects is crucial for handling date and time in Java applications.
Difference Between Casting to String and String.valueOf()
Discover when casting to String or using String.valueOf() is most useful.
Implement Update-Or-Insert in Spring Data JPA
Learn different approaches to performing update-or-insert operations using Spring Data JPA.
“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.
Finding the Redirected URL of a URL in Java
Learn how handling redirection correctly is essential for building robust web applications that interact with external resources.
Download File from S3 Given a URL
Learn how to download a file from S3 given a URL with Java and AWS SDK.
How to Specify the logback.xml Location
A quick and practical guide to customizing the logback.xml location.
PrintWriter write() vs print() Method in Java
Discover the differences between PrintWriter’s write() and print() methods.