Memory leaks can be a serious issue in any programming language, and Java is no exception. Despite having a built-in garbage collector, memory leaks can still occur in Java applications. In this blog post, we’ll explore some common causes of memory leaks in Java and provide code examples for each case. 1. Static Fields Static […]
When building applications with Spring Boot and the Java Persistence API (JPA), one of the essential tasks is mapping entity classes to database tables. In this process, defining primary keys for your entities is crucial. Spring Boot JPA provides annotations to simplify this task: @Id and @GeneratedValue. 👉Please Note Java Persistence API (JPA) is changed […]
When working with Spring Boot and Hibernate, one of the properties you’ll come across is spring.jpa.hibernate.ddl-auto. This property is a powerful tool that controls Hibernate’s automatic schema generation¹³⁶. Let’s dive into what this property does and the differences between its various options. What is spring.jpa.hibernate.ddl-auto? The spring.jpa.hibernate.ddl-auto property is a Hibernate feature that Spring Boot […]
Introduction Start with a brief introduction about keys in the Relational Model of DBMS. Mention the importance of keys in uniquely identifying a tuple (row) in a relation (table). What is a Primary Key? Explain what a Primary Key is. Discuss its role in uniquely identifying the tuples in a relation. Mention that it is […]
In Java 8, the introduction of the Stream API brought a new functional programming style to the language. One of the most useful classes in this API is Collectors, which provides a set of convenient reduction operations, allowing you to perform complex data operations in a concise and readable manner. In this blog post, we’ll […]
When working with Java streams, you may sometimes need to count the number of elements in the stream. Java provides two different approaches to achieve this: the count() method and the collect(Collectors.counting()) method. While both methods serve the same purpose, they differ in their underlying implementation and use cases. The count() Method The count() method […]
Introduction: Understanding the Java memory model and the JVM architecture is crucial for Java developers, as it provides insights into how Java programs execute and how memory is managed. This knowledge is particularly important for developing, deploying, monitoring, and tuning the performance of Java applications. In this blog post, we will delve into the Java […]
Introduction: In the world of multithreaded programming, thread-safety is a critical concern. Java’s built-in collections, such as HashMap, are not thread-safe, which means that concurrent access from multiple threads can lead to data corruption or unexpected behavior. This is where ConcurrentHashMap comes into play, providing a thread-safe implementation of the Map interface that is designed […]
Here are the questions I could extract from the conversation: Which version of Java did you work on in the last project? Qestion : What spring boot version did you use? Answer: Here are some of the major Spring Boot releases in the last two years: Please note that these are just a few of […]
Java 8 introduced the Stream API, a powerful new abstraction for working with sequences of data in a functional programming style. Among its many features, two that often cause confusion are stream() and parallelStream(). In this blog post, we’ll explore the differences between these two methods and their impact on performance. What are stream() and […]