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Armstrong Numbers in Java

Learn how to check if an integer is an Armstrong number and generate OEIS sequence A005188 up to a given limit

Add Header to Every Request in Postman

Explore the pre-request Script functionality of Postman to add HTTP headers to every request.

Spring Cloud – Disable Discovery Clients with Profiles

While Spring’s service discovery mechanisms can be very helpful we may wish to turn them off in certain environments. We look at how to achieve this with both properties files and Spring profiles.

Compile All Java Classes in Directory Structure with javac

A quick and practical overview of how to compile all classes inside a directory using javac.

Java Operators

Walk through all Java operators to understand their functionalities and how to use them

Convert long to int Type in Java

A quick and practical guide to long to int conversion in Java.

Secondary Indexes in Cassandra

Learn how to use secondary indexes in Apache Cassandra and also understand some best practices and recommendations.

Using Spring Cloud Gateway with OAuth 2.0 Patterns

Explore some of the OAuth 2.0 security patterns and how to implement them using Spring Cloud Gateway.

What Is the Difference Between NIO and NIO.2?

Understand Java IO functionalities and how they changed throughout different Java versions.

Write for Baeldung

Become an author on Baeldung, and get paid for writing practical, to-the-point articles in the Java ecosystem.

Random Number Generators in Java 17

Java 17 provides a large number of improvements to the generation of random numbers. We explore the new API and compare it with the original random number generators.