How to Avoid NullPointerExceptions (Best Practices)
NullPointerExceptions (NPEs) are a frequent headache for Java developers. They occur when your code tries to access a method or …
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How to Use QueryDSL in Spring Boot 3: A Complete Guide to Type-Safe Queries [2025 Update]
QueryDSL is a powerful framework for building type-safe, dynamic queries in Java applications. With Spring Boot 3 adopting Jakarta EE and deprecating javax.persistence, …
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How to Create Executable JAR File (3 Methods Explained)
An executable JAR (Java Archive) file lets you run a Java application with a single click or command. Unlike standard …
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Most Frequently Asked Spring Boot Interview Questions for 2025
Spring Boot remains a cornerstone of modern Java development, empowering developers to build production-ready applications with minimal configuration. As demand …
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Integrate Spring AI with DeepSeek AI
In today’s AI-driven development landscape, integrating machine learning models into applications has become essential. When you integrate Spring AI with …
How to Generate DeepSeek API Key: Step-by-Step Guide
Integrating DeepSeek’s powerful AI and data services into your applications requires an API key. This guide walks you through generating …
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Java Varargs (Variable Arguments)
As a developer, you’ve likely faced scenarios where a method needs to handle an unpredictable number of arguments. Writing separate …
How to Run DeepSeek AI Locally Using Ollama: A Step-by-Step Guide
In our previous guide, we walked you through installing Ollama on Windows, Linux, and macOS to run large language models (LLMs) …
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How to Install Ollama on Windows, Linux, and macOS: A Step-by-Step Guide
Ollama is a powerful tool for running and managing large language models locally on your machine. Whether you’re a developer, …
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Data Types in Java
Java is a strongly-typed language, meaning every variable must be declared with a data type. This ensures type safety, which …