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In this article, we’ll learn how to validate IPv4 addresses using Java Regex

In this article, we will learn how to assert Optional in Java using JUnit 5 and AssertJ assertion libraries.

In this article, we will learn how to assert thrown exceptions in Java using JUnit 5 and AssertJ assertion libraries.

In this article, we will learn how to assert Object’s multiple properties in a single assert in JUnit 5, Hamcrest, and AssertJ assertion libraries.

In this tutorial, we’ll learn how to read a PDF file in Java using different libraries.

Java has several assertion libraries that can help you with testing and debugging your code. In this article, we’ll look at various assertions libraries and compare them.

In this tutorial, we’ll learn how to write efficient Junit test cases in Java using Junit 5 ( Jupiter ) assertions.

In this tutorial, we’ll learn how to write efficient unit test cases in Java using AssertJ assertThat() assertions.

In this tutorial, we’ll learn how to write efficient Junit test cases in Java using Hamcrest assertThat() with Matchers.

In this tutorial, we’ll learn how to customize the default Jackson JSON Mapper in Spring Boot Web Application with various Jackson configurations.