লো-লেভেল ডিজাইন (LLD) হলো সফটওয়্যার ডেভেলপমেন্টের মেরুদণ্ড। এটি শুধুই কোডিং নয়—বরং এমনভাবে একটি সমস্যা সমাধান করা, যাতে কোড হয় স্কেলেবল, রিডেবল ও মেইন্টেইনেবল। আজকের এই গাইডে আমরা ধাপে ধাপে আলোচনা করবো কীভাবে একজন দক্ষ LLD ইঞ্জিনিয়ার হওয়া যায়। ✅ ধাপ ১: OOP-এর ভিত্তি মজবুত করুন লো-লেভেল ডিজাইনের যাত্রা শুরু হয় Object-Oriented Programming (OOP) এর গভীর […]
Introduction Deploying Java applications efficiently is crucial for ensuring smooth updates and minimizing downtime. This comprehensive guide provides an automated deployment script along with necessary Docker and Docker Compose configurations. This setup allows seamless deployment of Java applications, ensuring they are built, tested, and deployed with minimal manual intervention. Deployment Script Docker Compose Files docker-compose.yaml
Keycloak is an open-source identity and access management solution that provides single sign-on (SSO) and multi-factor authentication capabilities. In this guide, we’ll walk through the steps to set up Keycloak on a virtual machine for testing authentication. Step 1: Download and Install Keycloak Add the following content to the script: Make the script executable and
This guide will walk you through the installation and setup of Nominatim on a Debian-based system. Step 1: Install Required Packages Update your package list and install the necessary packages: Step 2: Install and Configure Sudo Install sudo and add the necessary paths: Create the nominatim user: Set environment variables for the nominatim user: Set
This guide will help you set up a .pgpass file to connect to a PostgreSQL database without being prompted for a password. Step 1: Create the .pgpass File Create a .pgpass file in your home directory or another preferred location with the following content: Step 2: Set File Permissions Ensure that the .pgpass file has
NumberToBanglaWords is a Java class that provides methods to convert numeric values into their equivalent textual representation in Bengali and English languages. It supports both traditional and legacy formats for representing numbers. Usage You can use the provided methods to convert numeric values into text. The class offers the following conversion options: Import Convert Numeric
Generate SSH Keys for Each Bitbucket Account Configure SSH Config File Cloning Repositories When cloning repositories, replace the default host with the configured host: Ensure to replace bitbucket.org with the appropriate configured host. You’re all set! This setup allows you to work with multiple Bitbucket accounts on a single device seamlessly.
