To convert a Stack to an int[] in Java, you can follow these steps: import java.util.*; public class StackToArrayExample {public static void main(String[] args) {Stack stack = new Stack<>();stack.push(10);stack.push(15);stack.push(30);stack.push(20);stack.push(5); }
In the bustling city of Springville, where beans of all types coexist, sometimes @Autowired needs help finding its way. Imagine you’re at a café, and you ask for “coffee.” In a small town, you’d get the only coffee they have. But in a city with countless coffee shops, each serving unique brews, your request is […]
In the world of Spring, @Autowired is a superstar annotation that most developers use daily. But how much do we really understand it? Is it just a magical keyword that makes dependencies appear, or is there more to the story? Today, we’ll peel back the layers of @Autowired to truly grasp its power, versatility, and […]
In today’s microservices-driven world, it’s not uncommon for applications to interact with multiple databases. Perhaps you’re migrating from MySQL to PostgreSQL and need to maintain both during the transition, or maybe different parts of your application require distinct database technologies. Whatever the reason, Spring Data JPA makes it a breeze to work with multiple databases […]
Question 1: Finding the Median from a Data Stream in Java We’ll explore how to find the median from a data stream using Java. This is a common problem in data analysis and statistics, and it can be solved efficiently using a data structure called a heap. You can find this problem at Leetcode. Find […]
Sure, here are the questions I could extract from the given text: Question: Take a list of number, 2, 5, 10, some random number. Find out the second largest number into this list. Answer: Please Learn more about Limit, Skip, reduce in following blog. Question: Two list list1: {“Apple”, “Bannana”} and list2= {“Bannana”, “Graphs”} So, […]
In object-oriented programming, both interfaces and abstract classes are used to create contracts for classes to follow. But they serve different purposes and are used in different contexts. Let’s dive into the details. What is an Interface? An interface is a contract 🤝 that guarantees that a class implements a certain set of methods. It’s […]
Introduction Start with a brief introduction about Optional and its importance in handling nulls in Java. Mention how it can improve the robustness of your code. Understanding Optional Explain what Optional is and how it works. Discuss how it can contain a non-null value or be empty, and how it provides methods to handle these […]
Introduction Start with a brief introduction about Spring Data JPA and its importance in simplifying database access. Mention how it eliminates boilerplate code and improves productivity. Query Creation from Method Names Explain how Spring Data JPA supports creating queries automatically from method names. Provide examples like findByLastname(String lastname), findByFirstnameAndLastname(String firstname, String lastname), etc. Using the […]
In this blog post, we’ll dive into some of the core annotations used in Spring Framework: @ComponentScan, @Configuration, and @EnableAutoConfiguration. @ComponentScan The @ComponentScan annotation is used by Spring to automatically detect the beans. It tells Spring where to search for components that should be managed by the Spring container. When you use @ComponentScan, Spring scans […]