Coding N Concepts

Sort Map by Key using TreeMap in Java

Sat, 27 May 2023 02:00:00 +0200

In this tutorial, we’ll learn how to use TreeMap to sort a Map by its keys in Java

Sort Array List of Objects in Java

Tue, 23 May 2023 02:00:00 +0200

In this tutorial, we’ll learn how to sort an Array List of Objects in Java

Print Array in Java

Sun, 21 May 2023 02:00:00 +0200

In this tutorial, we’ll learn how to print the elements of a given Array in Java.

AWS Certified Solutions Architect Associate (SAA-C03) Exam Notes

Tue, 16 May 2023 02:00:00 +0200

If you are planning or preparing for AWS Certified Solutions Architect Associate (SAA-C02) exam then this article is for you to get started.

Hashicorp Terraform Associate (003) Exam Questions

Sat, 13 May 2023 02:00:00 +0200

A comprehensive list of 200+ unique practice exam questions for Hashicorp Terraform Associate Certification (003).

Hashicorp Terraform Associate Exam Guide

Thu, 13 Apr 2023 02:00:00 +0200

A complete study guide for Hashicorp Terraform Associate Certification Exam.

Java Regex to Validate IPv4 Address

Sun, 12 Mar 2023 02:00:00 +0200

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

Test Object's multiple properties in Single Assert

Sun, 05 Mar 2023 02:00:00 +0200

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

Read PDF File in Java

Sat, 25 Feb 2023 02:00:00 +0200

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

Writing Effective Java Tests with Assertion Libraries

Sun, 19 Feb 2023 02:00:00 +0200

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.

Unit Test with JUnit 5 in Java

Thu, 22 Dec 2022 02:00:00 +0200

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

Unit Test with AssertJ in java

Tue, 20 Dec 2022 02:00:00 +0200

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

Unit Test with Hamcrest in java

Sun, 18 Dec 2022 02:00:00 +0200

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

Customize Jackson JSON Mapper in Spring Boot

Fri, 16 Dec 2022 02:00:00 +0200

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

Use Spring Boot Project as a Dependency

Tue, 13 Dec 2022 02:00:00 +0200

In this article, we will learn how to build a Spring Boot JAR as a library and use it as a dependency in other applications.

Log Hibernate/JPA SQL Queries in Spring Boot

Sun, 11 Dec 2022 02:00:00 +0200

In this article, we will learn how to log SQL statements in the Spring Boot application for debugging.

Format number to 2 decimal places in Java

Thu, 01 Dec 2022 02:00:00 +0200

Quick example to format any type of number - int, long, float, and double to 2 decimal places in Java

Custom HTML Error Page using Thymeleaf

Mon, 28 Nov 2022 02:00:00 +0200

In this article, we’ll learn how to customize default Whitelabel Error Page in Spring Boot using Thymeleaf HTML templates

Disable Whitelabel Error Page in Spring Boot

Sun, 27 Nov 2022 02:00:00 +0200

In this article, we’ll learn how to disable default Whitelabel Error Page in Spring Boot.

Convert XSD Schema to JSON using JAXB

Sun, 28 Aug 2022 02:00:00 +0200

In this tutorial, we will learn how to auto generate class files from XSD schema using JAXB task and use them to convert to Json.