Tutorials Archives - A N M Bazlur Rahman https://bazlur.ca/category/tutorial/ Java Champion 🏆 Empowering Developers through Speaking 🗣️ Writing ✍️ Mentoring 🤝 & Community Building 🌍 Published Author 📖 Contributing Editor at InfoQ and Foojay.IO Sun, 22 Jun 2025 04:29:17 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.2 https://i0.wp.com/bazlur.ca/wp-content/uploads/2022/07/cropped-klara-and-sun.jpeg?fit=32%2C32&ssl=1 Tutorials Archives - A N M Bazlur Rahman https://bazlur.ca/category/tutorial/ 32 32 207159250 Building Robust AI Applications with LangChain4j Guardrails and Spring Boot https://bazlur.ca/2025/06/21/building-robust-ai-applications-with-langchain4j-guardrails-and-spring-boot/ https://bazlur.ca/2025/06/21/building-robust-ai-applications-with-langchain4j-guardrails-and-spring-boot/#respond Sat, 21 Jun 2025 16:29:56 +0000 https://bazlur.ca/?p=114012 As AI applications become increasingly complex, ensuring that language models behave predictably and safely is paramount. LangChain4j’s guardrails feature provides a powerful framework for validating both the inputs and outputs of your AI services. This article demonstrates how to implement comprehensive guardrails in a Spring Boot application, with practical examples that you can adapt to ... Read more

The post Building Robust AI Applications with LangChain4j Guardrails and Spring Boot appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2025/06/21/building-robust-ai-applications-with-langchain4j-guardrails-and-spring-boot/feed/ 0 114012 Exploring File Storage Solutions in Spring Boot: Database, Local Systems, Cloud Services, and Beyond https://bazlur.ca/2023/08/17/exploring-file-storage-solutions-in-spring-boot-database-local-systems-cloud-services-and-beyond/ https://bazlur.ca/2023/08/17/exploring-file-storage-solutions-in-spring-boot-database-local-systems-cloud-services-and-beyond/#respond Thu, 17 Aug 2023 05:16:16 +0000 https://bazlur.ca/?p=101822 When building a web application, managing file uploads properly is a common requirement. After receiving, files can be stored in several places: in a file system, in a database or, more commonly, in a cloud storage service. In this article, we will cover how to store files in a database using Spring Boot and discuss ... Read more

The post Exploring File Storage Solutions in Spring Boot: Database, Local Systems, Cloud Services, and Beyond appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2023/08/17/exploring-file-storage-solutions-in-spring-boot-database-local-systems-cloud-services-and-beyond/feed/ 0 101822 Sealed Interfaces and Pattern Matching: A Quick Dive into Java’s Modern Capabilities https://bazlur.ca/2023/08/09/sealed-interfaces-and-pattern-matching-a-quick-dive-into-javas-modern-capabilities/ https://bazlur.ca/2023/08/09/sealed-interfaces-and-pattern-matching-a-quick-dive-into-javas-modern-capabilities/#comments Wed, 09 Aug 2023 07:01:51 +0000 https://foojay.io/?p=101649 Sealed classes and interfaces, together with pattern matching, provide powerful new tools for more explicit, controlled, and flexible design in Java

The post Sealed Interfaces and Pattern Matching: A Quick Dive into Java’s Modern Capabilities appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2023/08/09/sealed-interfaces-and-pattern-matching-a-quick-dive-into-javas-modern-capabilities/feed/ 2 101859 Dive into the OpenJDK: Top 10 Reads on Foojay.io https://bazlur.ca/2023/07/19/dive-into-the-openjdk-top-10-reads-on-foojay-io/ https://bazlur.ca/2023/07/19/dive-into-the-openjdk-top-10-reads-on-foojay-io/#respond Wed, 19 Jul 2023 07:45:04 +0000 https://foojay.io/?p=101054 Foojay.io is a community platform dedicated to the needs of developers who use the OpenJDK and related technologies.

The post Dive into the OpenJDK: Top 10 Reads on Foojay.io appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2023/07/19/dive-into-the-openjdk-top-10-reads-on-foojay-io/feed/ 0 101054 Exploring Java 21’s Intriguing Additions: Unveiling New Features (Part 1) https://bazlur.ca/2023/06/20/exploring-java-21s-intriguing-additions-unveiling-new-features-part-1/ https://bazlur.ca/2023/06/20/exploring-java-21s-intriguing-additions-unveiling-new-features-part-1/#respond Tue, 20 Jun 2023 13:40:21 +0000 https://foojay.io/?p=98790 Learn about a few notable features that stand out in the upcoming Java 21, in an overview of their functionalities and potential use cases.

The post Exploring Java 21’s Intriguing Additions: Unveiling New Features (Part 1) appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2023/06/20/exploring-java-21s-intriguing-additions-unveiling-new-features-part-1/feed/ 0 98808 5 ways to improve your communication skills https://bazlur.ca/2022/08/06/5-ways-to-improve-your-communication-skills/ https://bazlur.ca/2022/08/06/5-ways-to-improve-your-communication-skills/#respond Sat, 06 Aug 2022 17:34:18 +0000 https://bazlur.ca/?p=56477 Communication is the key to everything. Humans invented languages to communicate with other human beings, and the endeavour went beyond just talking; it’s in every aspect of our life. Failure to communicate can even lead to catastrophe. Certainly, it’s true for software developers as well. Software development is solving problems and creating values for human ... Read more

The post 5 ways to improve your communication skills appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2022/08/06/5-ways-to-improve-your-communication-skills/feed/ 0 56477 Java Thread Programming (Part 9) https://bazlur.ca/2021/12/14/java-thread-programming-part-9/ https://bazlur.ca/2021/12/14/java-thread-programming-part-9/#respond Tue, 14 Dec 2021 11:14:33 +0000 https://foojay.io/?p=50958 Let's continue the discussion and share a few more thread-safe classes that we can use in our day-to-day coding!

The post Java Thread Programming (Part 9) appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2021/12/14/java-thread-programming-part-9/feed/ 0 50958 Java Thread Programming (Part 8) https://bazlur.ca/2021/12/07/java-thread-programming-part-8/ https://bazlur.ca/2021/12/07/java-thread-programming-part-8/#respond Tue, 07 Dec 2021 18:15:09 +0000 https://foojay.io/?p=50890 The term thread safety is a frequently and commonly pronounced word among Java developers. However, it is still one of the misunderstood terms as well. In this article, I will try to explain in a very simplified way what it is and how we can achieve it while we write our day-to-day code. The idea ... Read more

The post Java Thread Programming (Part 8) appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2021/12/07/java-thread-programming-part-8/feed/ 0 50890 Java Thread Programming (Part 7) https://bazlur.ca/2021/11/23/java-thread-programming-part-7/ https://bazlur.ca/2021/11/23/java-thread-programming-part-7/#comments Tue, 23 Nov 2021 10:10:53 +0000 https://foojay.io/?p=50806 Can we create as many Java threads as we want? I will try to come up with an answer via an exercise, so bear with me!

The post Java Thread Programming (Part 7) appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2021/11/23/java-thread-programming-part-7/feed/ 2 50806 Coding and collaboration skills a junior developer should have to get hired – Part 2 https://bazlur.ca/2017/11/21/interview-with-bruno-souza-coding-and-collaboration-skills-a-junior-developer-should-have-to-get-hired/ https://bazlur.ca/2017/11/21/interview-with-bruno-souza-coding-and-collaboration-skills-a-junior-developer-should-have-to-get-hired/#respond Tue, 21 Nov 2017 18:38:40 +0000 https://bazlur.ca/?p=56481 Today, I met Bruno Souza online and ask him the following question- Recently I’m getting a lot of questions from junior software developers and a common one is that what are the skills( e.g. coding skills, collaboration skills) needed to get hired. As you may have experienced in hiring or working with junior software developers, I believe, ... Read more

The post Coding and collaboration skills a junior developer should have to get hired – Part 2 appeared first on A N M Bazlur Rahman.

]]> https://bazlur.ca/2017/11/21/interview-with-bruno-souza-coding-and-collaboration-skills-a-junior-developer-should-have-to-get-hired/feed/ 0 56481