Null Safety Simplified: Mastering Java’s Optional Class
Java’s Optional class, introduced in Java 8, provides an elegant approach to managing null values and avoiding the dreaded NullPointerException. By encapsulating potential null values in a container...
View ArticleHow to Find the IP Address of a URL in Java
When working with networking applications in Java, we might encounter scenarios where we need to resolve the IP address of a given URL. This is typically useful for debugging, logging, or implementing...
View ArticleFixing MysqlDataTruncation: Data Too Long for Column Error
The error MysqlDataTruncation: Data truncation: Data too long for column is a common issue encountered when attempting to insert or update data in a MySQL database table. It indicates that the written...
View ArticleJava in Machine Learning: Top Libraries and Frameworks
Java offers a solid foundation for machine learning through its robust libraries and frameworks. These tools cater to various needs, from prototyping small models to deploying large-scale,...
View ArticleCheck For Empty Excel Rows In Java
Processing Excel files in Java is a common requirement for data-driven applications. One common task is identifying empty rows in an Excel sheet. Let us delve into understanding how to check for empty...
View ArticleProcessing JDBC ResultSet with Stream API
Java’s Stream API, introduced in Java 8, is an incredibly powerful tool for handling collections of data in a functional style. However, when working with JDBC, which relies on ResultSet to retrieve...
View ArticleSpring Boot 3 and the Move to Jakarta EE: What Developers Need to Know
The transition from Java EE to Jakarta EE has been a significant shift in the Java ecosystem, and with the release of Spring Boot 3, this change has had profound implications for developers. Spring...
View ArticleMastering Java’s Pattern Matching for Switch (JEP 406)
Java’s evolution continues to simplify common programming tasks, and one of the latest and most exciting additions is Pattern Matching for Switch (JEP 406). Introduced in Java 17, pattern matching...
View ArticleJava Quarkus LangChain4j – Building a Chatbot
Quarkus is a modern Java framework designed for cloud-native applications, offering fast startup times and efficient resource usage. LangChain4j, inspired by LangChain, simplifies integrating Large...
View ArticleApache POI Workbook Evaluation
Apache POI is a popular library for reading, writing, and manipulating Microsoft Office documents, including Excel files. It provides different classes to work with Excel spreadsheets, each suited for...
View ArticleMockito vs PowerMock: Which One to Choose for Mocking Static Methods?
When it comes to unit testing in Java, mocking is a crucial aspect of simulating behavior and controlling dependencies. However, mocking static methods can be a challenge, as static methods are bound...
View ArticleMocking Repositories and DAOs in Java with Mockito
Testing database interactions is a critical aspect of developing robust Java applications. However, testing against a real database can be slow, complex, and error-prone. Mockito, a powerful mocking...
View ArticleFilter a List by Any Matching Field
Java 8 introduced the powerful Stream API, making it easier to process collections in a functional programming style. Let us delve into understanding how to filter a list in Java by any matching field....
View ArticleGet Classpath from Classloader in Java
Java is a powerful and versatile programming language, widely used in various domains ranging from mobile application development to enterprise systems. At the heart of Java’s architecture is the Java...
View ArticleMastering Java Performance: Profiling, Benchmarking, and Optimization
Optimizing the performance of Java applications is critical for ensuring responsiveness, scalability, and efficient resource usage. Profiling and benchmarking are essential steps in identifying...
View ArticleSpring Security 6: Enhanced Authentication and Authorization
Spring Security 6 introduces several powerful features to make authentication and authorization in Java web applications more secure, flexible, and developer-friendly. From improved OAuth2 support to...
View Article@MapsId Annotation Example
1. Introduction The @MapsId annotation provided by JPA 2.0 is used to map a foreign key in a one-to-one or many-to-one relationship to the primary key of another entity. In this example, I will create...
View ArticleJava 17 Features: Language Enhancements and API Additions
Java 17, released as a Long-Term Support (LTS) version, brings several exciting new features that improve performance, security, and developer productivity. These changes include enhancements to the...
View ArticleEntityManagerFactory vs SessionFactory
In the world of Java application development, interacting with databases efficiently is critical. Two key components often come into play when working with Object-Relational Mapping (ORM) frameworks:...
View ArticleGet a List of IP Connected in Same Network (Subnet) using Java
Networking is an essential concept in modern computing, forming the backbone of how devices communicate. In a local network, devices are often grouped into subnets for efficient communication and...
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