Learn and code through real-world scenarios using a Spring Data JPA project.
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Learn Spring Course
Get started with the Spring Framework by building a practical project with Spring 6 and Spring Boot 3.
Learn Spring Security OAuth Course
The definitive guide to secure your application with the new OAuth2 stack in Spring Security 6 and Boot 3.
Learn Spring Security Core Course
The reference, in-depth dive into the core of Spring Security 6 and Boot 3, through the project-based lessons.
Learn Spring Security Course
The reference, in-depth dive into Spring Security 6 and Boot 3, with the full 88 project-based lessons.
Introduction to SSHJ
Learn the basic usage of the SSHJ library for secure communication with remote servers.
Remove Only Trailing Spaces or Whitespace From a String in Java
Learn how to strip the trailing whitespace from the end of a String in Java.
Mask an Email Address and Phone Number in Java
Explore masking of sensitive information for protecting user privacy and adhering to data security regulations.
Translating Space Characters in URLEncoder
Learn the fundamentals of URL encoding in Java focusing on the URLEncoder class for encoding spaces into URL-safe formats.
N+1 Problem in Hibernate and Spring Data JPA
Explore a common N+1 problem while using Spring JPA and Hibernate.
List vs. Set in @OneToMany JPA
Explore the differences between Lists and Sets in the context of entity relationships through examples.
Setting up and Using Spock With Gradle
Learn how to configure Gradle dependencies to write specification tests with Spock and Spring.
Introduction to Apache Calcite
Learn about Apache Calcite, a powerful data management framework.
Read Multiple Messages with Apache Kafka
Explore how the Kafka Consumer retrieves messages from the broker.
Recursively Sum the Integers in an Array
Explore two approaches to recursively summing integers in an array and analyze their performance using the JMH tool.
Create Table Using ASCII in a Console in Java
Learn how to use the Java standard API and a third-party API to create a table using ASCII characters in Java.
Sharing Memory Between JVMs
Learn how to use share a memory area between two JVMs running on the same machine.
Validate Boolean Type in Spring Boot
This tutorial teaches various ways to validate a boolean in Spring Boot.
Finding the Square Root of a BigInteger in Java
Learn three approaches to calculating the square root of a big number in Java.
String Templates in Java 21
Explore several String composition techniques and understand the idea behind String interpolation.