In the context of Docker and Kubernetes, a container is a lightweight, standalone, executable package that includes everything needed to run an application, including the code, runtime, system tools, libraries, and dependencies. Docker Containers:In Docker, a container is created from a Docker image, which is a read-only template that contains instructions for creating the container […]
Here’s an example scenario where a reentrant lock is useful, but a synchronized lock would not work correctly: Imagine you have a class called BankAccount that handles banking operations like depositing and withdrawing money. The class needs to be thread-safe to ensure that multiple threads can perform operations on the same account without causing data […]
1. Introduction The CountDownLatch class is a powerful concurrency construct provided by Java. Its purpose is to allow one or more threads to wait until a given set of operations performed by other threads completes. Essentially, it acts as a synchronization aid. 2. Basics of CountDownLatch 3. Practical Examples Example 1: Waiting for a Pool […]
The Stream.generate() method in Java is a powerful feature introduced in the java.util.stream.Stream class. It allows you to create an infinite sequential unordered stream where each element is generated by a provided Supplier. Let’s break it down: In summary, Stream.generate() provides a convenient way to create custom streams with dynamically generated elements. Whether you’re dealing […]
Here are examples of best practices for using lambda expressions in Java: Explanation Here’s why modifying a local variable within a lambda expression is generally considered bad practice: 1. Violates Functional Principles 2. Potential Concurrency Issues 3. Reduced Readability 4. Limits Streams API Power Key Point: While technically possible to modify variables within a lambda, […]
Introduction Lambda expressions were introduced in Java 8, which revolutionized the way developers can write Java code. They offer a concise and elegant way to express functional logic. In this blog, we’ll dive deep into lambda expressions, their syntax, benefits, and how they integrate seamlessly with functional interfaces. What are Lambda Expressions? Syntax of Lambda […]
Introduction: In the ever-evolving landscape of software development, microservices have emerged as a popular architectural pattern for building scalable, flexible, and resilient applications. Unlike monolithic architectures, microservices decompose an application into smaller, independent services that can be developed, deployed, and scaled independently. However, with this distributed nature comes the challenge of service discovery: how can […]
Question 1. First Print Odd, then Print Even for Numbers 1-10 In this scenario, we want to print the odd numbers first and then the even numbers. We can achieve this by using two threads and the join() method to make sure the thread printing even numbers waits until the thread printing odd numbers has […]
Best Average Grade Are you preparing for coding interviews at top companies like Goldman Sachs? 💼 One of the popular questions they ask is the “Best Average Grade” problem. In this blog post, we’ll dive into the problem statement, understand the solution approach, and provide a Java implementation with code snippets. 🚀 📝 Problem Statement […]
🤔 The Challenge: Fractions to Decimals In the world of mathematics, fractions are a fundamental concept that represents the division of one integer by another non-zero integer. While some fractions can be easily converted to their decimal counterparts (e.g., 1/2 = 0.5), others exhibit a peculiar behaviour known as cyclic decimals. These fractions, when converted […]