Java Zone - The heart of the Java developer community

Java Zone - The heart of the Java developer community

Multiple Ways to Configure Spring

Posted: 30 Sep 2021 01:04 PM PDT

Two weeks ago, I wrote how you could write a Spring application with no annotations. Many alternatives are available to configure your Spring app. I'd like to list them in this post, leaving Spring Boot out of the picture on purpose.

Core Concepts

A couple of concepts are central in Spring. The related documentation doesn't describe most of them. Here is my understanding of them:

HashMap: Things You Should Know How To Do

Posted: 30 Sep 2021 09:16 AM PDT

What Is HashMap and How To Use It

In the Java programming language, HashMap is widely used to store data in a key-value manner to establish an association between key-value pairs. It is used to map keys with specified values.  

HashMap < K, V > mapObject = new HashMap ();

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