Manish R Sankar

🖥️ software developer🖱️.सानकर मन्या😉

[Magnus Lindberg @MagnusLindbrg]

The only 7 moves you need to build muscle at home.

1. Pushups

[Manish R Sankar @imManya93]

@MrRicky23 Silver

[Manish R Sankar @imManya93]

@TheKhelIndia Go for Gold 🥇

[Messismo @Messismo10]

QUÉ EQUIPO.

[Tukaram Mundhe @Tukaram_IndIAS]

Just Speak

FDA Maharashtra has launched grievance redressal portal for citizens. It is AI enabled platform, having auto assignment, auto escalation and built in accountability with traceability features .
https://t.co/597si71Z6E
#TukaramMundhe #FDA

[Abhishek Singh @0xlelouch_]

90% of Java in 2026 comes down to mastering these 10 concepts. Everything else is syntax trivia.

1) JVM memory model + GC: know heaps, generations, and how allocation rate drives pauses more than heap size.
2) Concurrency primitives: locks vs atomics vs executors; most prod bugs are missed visibility, not deadlocks.
3) Collections + complexity: HashMap resizing, iteration costs, and when LinkedList is just a slow ArrayList.
4) I/O and backpressure: blocking vs NIO, thread-per-request limits, and how queues hide overload until they don’t.
5) Exceptions and failure semantics: checked exceptions are not reliability; timeouts, retries, and idempotency are.
6) Performance basics: JIT warmup, profiling before tuning, and why microbenchmarks lie without JMH.
7) Tooling fluency: Maven/Gradle, dependency trees, shading, and reproducible builds across CI and laptops.
8) Debugging in prod: thread dumps, heap dumps, async-profiler, and reading stack traces without guessing.
9) Security hygiene: deserialization, SSRF, secrets in logs, and keeping dependencies patched with SBOM/SCA.
10) Observability that helps: structured logs, metrics with cardinality limits, tracing with sampling, and SLO-driven alerts

[Arun Chauhan @imarun_chauhan]

✅ Top 50 Java Interview Questions ☕

1. What are the main features of Java?
2. Difference between JDK, JRE, and JVM
3. What is the Java Virtual Machine (JVM)?
4. Explain the concept of Object-Oriented Programming in Java
5. What is the difference between == and .equals()?
6. What are access modifiers in Java?
7. Difference between abstract class and interface
8. What is a constructor? Types of constructors?
9. What is method overloading and overriding?
10. What is the difference between static and non-static methods?
11. What is the final keyword?
12. What is a package in Java?
13. What is the use of this and super keywords?
14. Difference between String, StringBuilder, and StringBuffer
15. What are exceptions? Checked vs unchecked exceptions
16. What is try-catch-finally in Java?
17. What is the difference between throw and throws?
18. Explain multithreading in Java
19. What is synchronization?
20. What is a thread lifecycle?
21. Explain collections in Java
22. Difference between List, Set, and Map
23. What is the difference between ArrayList and LinkedList?
24. What is HashMap?
25. Difference between HashMap and Hashtable
26. What is the hashCode() and equals() contract?
27. Explain generics in Java
28. What is an enum in Java?
29. What is a lambda expression?
30. What is functional interface?
31. What is the Stream API in Java 8?
32. What is Optional in Java 8?
33. What are default and static methods in interfaces?
34. What is garbage collection in Java?
35. What is the finalize() method?
36. What are annotations?
37. What is reflection in Java?
38. What is serialization and deserialization?
39. What is the transient keyword?
40. How does Java handle memory management?
41. What is JDBC in Java?
42. How do you connect to a database in Java?
43. What is the difference between Statement and PreparedStatement?
44. What is a singleton design pattern?
45. What is the factory pattern?
46. What is dependency injection?
47. What is the difference between stack and heap memory?
48. What are inner classes in Java?
49. What are best practices in exception handling?
50. How do you debug a Java application?

💬 Tap ❤️ for the detailed answers!

Coding: https://t.co/uBV0LzXOnv
Notes & PDF: https://t.co/qlme9O5m2m

[Shreya @Oblivious9021]

Interviewed 2 AI Engineer candidates today.

Both knew embeddings, vector databases, RAG, chunking, and retrieval pipelines.

Then I asked:

"Design a multi-agent architecture for an Investment Banking AI."

Silence.

What's your answer?

[Tukaram Mundhe @Tukaram_IndIAS]

मी स्वतःच स्वतःला

नागरिकांच्या अपेक्षांनी

आणि

त्यांच्या संघर्षांनी…

#inspiration #leadership #society #FDA #TukaramMundhe

[Umesh Kumar Yadav @Umesh__digital]

If it’s real-time → WebSockets
If it’s scale → Kafka
If it’s simplicity → REST
If it’s chaos → GraphQL
If it’s AI → Python
If it’s infra → Go
If it’s logs → ElasticSearch
If it’s low-latency → Redis
If it’s high-availability → Postgres
If it’s streaming → Flink
If it’s low-level → C
If it’s high-performance → C++
If it’s enterprise → Java

[eby @bygulsxy]

Is this kind of grafting technique easy to learn?

[Amit Arora 🇮🇳 @GuruShareMarket]

My cousin sold shares worth ₹1.45 crores last year.

His family assumed he would have to pay a huge tax bill.

After all, he had made ₹40 lakhs profit.

At 12.5% LTCG tax, that’s around ₹5 lakh going straight to the government.

But he paid ₹0 tax.

Legally.

All he did was...

[Ajit kumar @ajitcodes]

Stop telling Claude, "do this."
Stop telling Claude, "write code."
Stop telling Claude, "fix this error."

You're actually treating a senior AI like a junior intern.
Here are 8 prompts you can copy and paste directly:

[Men's hot Fashion @menshotfashion]

Top 12 colour combos—style and vibe collide in instant upgrade.

1.

[Jack @Tech_Rose1]

I gave Claude my birth date and time.

It broke down my entire life with eerie accuracy.
No horoscopes. No tarot. Just pure AI.

Here are 7 prompts you should try ↓

[SumitM @SumitM_X]

Are you confused in Java/Spring jargon like POJO, DTO, Entity, Bean, Repository?

Lets 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 data structure

2. Bean
A POJO that Spring manages
Must follow JavaBean rules (like having a no-arg constructor)
Registered in Spring via annotations like @ Component, @ Service, or @ Repository
All Beans are POJOs but Spring is in charge of creating and injecting them.

3. DTO (Data Transfer Object)
A POJO specifically used to carry data between layers
Contains only data - no logic, no annotations required
Commonly used between Controller and Service layers
Every DTO is a POJO, but not every POJO is a DTO.

4. Entity
A POJO that represents a database row
Annotated with @ Entity and used with JPA/Hibernate
Maps class fields to database table columns

5. DAO (Data Access Object)
A class that manually handles database operations
Typically uses JDBC or Hibernate to write queries

6. Repository
Spring's modern replacement for DAO
Uses @ Repository and Spring Data JPA
No need to write queries , Spring can auto-generate them
Cleaner, more maintainable way to access data

7. Service
Contains the business logic of your application
Where decisions, calculations, and rules are applied
Annotated with @ Service

8. Controller
Handles HTTP requests and responses
Acts as the entry point for web APIs
Annotated with @ Controller or @ RestController

9. Component
The base annotation for any Spring-managed class
@ Service, @ Repository, and others are specialized versions of it
Used to register general-purpose Spring beans

10. Configuration
A class that defines how beans are wired together
Annotated with @ Configuration
Often contains methods that create beans for the Spring context

[Abhishek Singh @0xlelouch_]

95.7% of senior Java interviews are these 7 topics.

[Cap-EO 👨🏾‍💻 @EOEboh]

Where are you storing your JWTs?

A) localStorage
B) sessionStorage
C) HTTP-only Cookie
D) Memory only

Be honest

[Edgex @SahilExec]

Interviewer:

Your API is getting 10,000 requests per second.

Server is choking. Users are complaining.
You have 15 minutes to fix it.

What do you do?

[Gabriel Morales @n2232n]

@Rossmac212 Yes, bonehead, because the effect of all your manipulations was adding 5 to the original, then subtracting it, so you end up with the 5

Let say you chose X
Multiply by 2 = 2X
Add 10 = 2X +10
Divide by 2 = X +5
Subtract the original = 5