Android Development

🚀System Design Roadmap for Beginners If you are starting off with system design, this is the BEST starting point for you! If you like my work, please do subscribe to my FREE Newsletter, for getting such articles right into email inbox every week :) Subscribe If you’re an absolute beginner in System Design, this roadmap will guide you step-by-step through all the key concepts using one consistent example:  Instagram . Each week, I’ve also included the best YouTube videos to help you understand these concepts practically and visually! 🗓️ Week 1 – Foundations What is System Design? : The process of building software systems like Instagram that can  scale  (handle millions of users), maintain  reliability  (stay available without crashing), and ensure  maintainability  (are easy to update and extend). 4 Components:  Client, Server, Database, APIs. Client : Your Instagram app, Server : Processes requests like “upload photo” API:  Fetches user fe...

Use Auto Scaling → handle traffic Use Load Balancer → distribute load Use Caching → reduce cost Use Queue → async processing Use Circuit Breaker → fault tolerance Use API Gateway → control traffic

⚙️ WSL2 Offline Setup (Internet Machine → Intranet Machine) This guide explains how to install WSL2 on an internet-enabled system and transfer it to an intranet (offline) system. 💻 STEP 1: On Internet Machine Install WSL wsl --install Update WSL (Optional) wsl --update Check Version wsl --version Check Status wsl --status List Installed Distros wsl --list --verbose Shutdown WSL (Important) wsl --shutdown Export Ubuntu wsl --export Ubuntu ubuntu.tar 📦 STEP 2: Copy Files ubuntu.tar wsl_update_x64.msi 💻 STEP 3: On Intranet Machine Enable Features dism /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart dism /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart Restart your system Install Kernel wsl_update_x64.msi Set WSL2 wsl --set-default-version 2 Import Ubuntu wsl --import Ubuntu C:\WSL\Ubuntu C:\path\ubuntu.tar Run Ubuntu wsl -d Ubuntu ⚠️ Correction wsl install ❌ ...

You can’t just copy Docker like a normal software file and run it offline — Docker depends on multiple packages, services, and (sometimes) OS-level features. But yes, you can set it up in an intranet (offline) environment using a pendrive if you prepare it properly. Here’s the practical, interview-ready + real setup approach 👇 --- ✅ Method: Download Docker → Transfer → Install Offline 🔹 Step 1: Identify Target System First decide: OS: Ubuntu / RHEL / Windows Architecture: x86_64 (most common) Because offline packages depend on this. --- 🔹 Step 2: Download Docker (Internet Machine) 👉 For Ubuntu (Most common for AI agents) Go to: Docker Engine official docs Download these .deb packages: Required files: containerd.io docker-ce docker-ce-cli docker-buildx-plugin docker-compose-plugin 👉 From: https://download.docker.com/linux/ubuntu/dists/ Navigate: pool/stable/amd64/ 📦 Download all required .deb files --- 🔹 Step 3: Copy to Pendrive Create folder: docker-offline/ Copy all .deb files ...

User (Intranet)       ↓ AI Agent (Local LLM - Qwen/LLaMA)       ↓ Intent Detection + Query Understanding       ↓ Common Database (SQLite / DuckDB)       ↓ Power BI (Connected to same DB)       ↓ Dashboard       ↓ Embedded in AI Agent UI AI Agent + Power BI Integration (Intranet Setup) 🔷 Overview This system connects an AI Agent (Python + Docker + DuckDB + Parquet + SQLite) with a dashboard created in Power BI. 👉 Core Idea: AI Agent processes & stores data Power BI reads same data Dashboard is embedded back into AI Agent UI 🔷 Architecture User Query ↓ AI Agent (Local Model – Qwen/LLaMA) ↓ Intent Detection + Data Processing ↓ Common Database (DuckDB / Parquet / SQLite) ↓ Power BI (Connected to same data) ↓ Dashboard ↓ Embedded in AI Agent UI 🔷 Technologies Used AI Model: / Backend: Python Storage: DuckDB, SQLite, Parquet Visualization: Embedding: API (optiona...

Follow on LinkedIn  Phone Dictionary Application in c Project Created by :  SHRADDHA NAND PANDEY SHUBHAM KUMAR PODDAR RAHUL KUMAR PRASAD KETAN GUPTA  #include <stdio.h> #include <conio.h> #include <string.h> #include <stdlib.h> #include <windows.h> struct person  // Structure is declared {     char name [ 35 ];     char address [ 50 ];     long int mble_no ;     }; void menu (); void got (); void start (); void back (); void addrecord (); void listrecord (); void modifyrecord (); void deleterecord (); void searchrecord (); int main () {     system ( "color 9f" ) ; // to color the screen     start () ;     return 0 ; } void back () {     start () ; } void start () {     menu () ; } void menu () {     system ( "cls" ) ; printf ( " \t\t **********WELCOME TO PHONE DICTIONARY*************" ) ; printf ( " \n\n\t\t\...

 Shadow of ImageView in android Gradle dependencies { compile 'com.yinglan.shadowimageview:shadowimageview:1.0.4' } In layout <com.yinglan.shadowimageview.ShadowImageView android:id="@+id/shadow" android:layout_width="300dp" android:layout_height="300dp" app:shadowRound="20dp" app:shadowSrc="@mipmap/lotus" app:shadowColor="@color/colorAccent"/> Set Picture shadow.setImageResource(resID); shadow.setImageDrawable(drawable); shadow.setImageBitmap(bitmap); Set the picture radius shadow.setImageRadius(radius); Set the shadow color of the image shadow.setImageShadowColor(color);

Formulas for Divisibility Questions   Formulas for Divisibility in Aptitude A divisibility  is a rule for finding whether the number is divisible by another number or not. We can say that when number a is divided by another number b and remainder becomes zero . Hence the number a is divisible by b  . It is away to find factors of a large numbers.In this Page Formulas for Divisibility is given. Formulas for Divisibility & Definitions: A divisibility rule is a shorthand method of determining whether a given number is divisible by a fixed divisor without carrying out the division, usually by examining its digits. One whole number is divisible by another if, after dividing, the remainder is zero. If the whole number is divisible by another number than the second number is factor of 1st number.   Divisibility Formulas When we set up a division problem in an equation using our division algorithm, and  r  = 0, we have the  following equation: a ...