I'm starting DSA from scratch.
No clue where to begin—tutorials, YouTube, or LeetCode?
If you've done this, share your roadmap or tips!
Let's create a beginner's guide together.
#DSA#100DaysOfCode#CodeNewbie#TechTwitter
Starting my prep journey again!
I’ll be doing DSA/LeetCode daily (@takeUforward_ SDE Sheet ) until I land a job
Also resuming @kirat_tw Cohort 3.0 to learn the MERN stack
Staying consistent and focused ,you can join me too! Let’s grow together
#DSA#LeetCode#100DaysOfCode
Are you confused in Java/Spring jargon like POJO, DTO, Entity, Bean, Repository?
Let’s understand these terms:
1. POJO (Plain Old Java Object)
Just a regular Java class
No annotations, no frameworks
Only fields, constructors, and getters/setters
Think of it as the most basic…
𝗛𝗼𝘄 𝘁𝗼 𝗿𝗲𝗳𝗮𝗰𝘁𝗼𝗿 𝗹𝗲𝗴𝗮𝗰𝘆 𝗰𝗼𝗱𝗲 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗦𝘁𝗿𝗮𝗻𝗴𝗹𝗲𝗿 𝗙𝗶𝗴 𝗽𝗮𝘁𝘁𝗲𝗿𝗻
The Strangler Fig pattern allows you to grow new implementations around risky legacy code.
Martin Fowler coined the metaphor after seeing vines that wrap around a host…
As a Java backend dev , you are expected to configure Alerts & Monitoring Tools like Splunk, Dynatrace, Grafana, ELK.
So in springboot interviews it is commonly asked-
How can you integrate Spring Boot Actuator with external monitoring and alerting systems such as Grafana?
Top 10 Database Scaling Techniques You Should Know:
1. 𝐈𝐧𝐝𝐞𝐱𝐢𝐧𝐠: Create indexes on frequently queried columns to speed up data retrieval.
2. 𝐕𝐞𝐫𝐭𝐢𝐜𝐚𝐥 𝐒𝐜𝐚𝐥𝐢𝐧𝐠: Upgrade your database server by adding more CPU, RAM, or storage to handle increased load.
3.…
If an interviewer asks, "How can you achieve synchronization in Java?"
Answer with these 6 key techniques:
1. Synchronized methods – Lock the whole method.
2. Synchronized blocks – Lock only critical sections.
3. ReentrantLock – Advanced, flexible locking mechanism.
4. Atomic…
DevOps project for beginners: Deploy Java application with Docker and Nginx to AWS EC2
Below is a detailed, step-by-step guide to assist you through the process:
1. Set Up an AWS Account:
- If you don’t have an AWS account, create one to access AWS services.
2. Launch an EC2…
Concurrency is not parallelism.
But can you explain the difference with Java examples?
Which classes represent concurrency, and which enable true parallelism?
I'll start:
ExecutorService = concurrency
ForkJoinPool = parallelism
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