16 years In IT | Author of a bestselling Java book | All Books links in the pinned tweet topmate.io/interviewswithsum…

Pinned Tweet
I have launched four digital products via Topmate and Gumroad so far . Given the constant inquiries through DMs for purchase links, I have decided to consolidate all relevant links in one place for your convenience. Individual Products: Cracking The Java Interview With Sumit: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/qturr HARD COPY: store.pothi.com/book/sumit-m… Cracking the MERN Interviews: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/imzsr Cracking The Reactjs Interviews: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/qqheh Cracking The React Native Interviews: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/yakhkx Bundle Offers: All in One Bundle (Java + Reactjs + MERN + React Native): Topmate: topmate.io/interviewswithsum… Gumroad:msumit.gumroad.com/l/ypbkul (Java book pdf + Java Interviews in 2026 webinar Recording): Topmate: topmate.io/interviewswithsum… (Java + Reactjs + MERN): Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/rikeb Reactjs + MERN Bundle: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/rikeb Java + MERN Bundle: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/psdfn Java + Reactjs Bundle: Topmate: topmate.io/interviewswithsum… Gumroad: msumit.gumroad.com/l/gvabt Thank you for your interest and support. 🙏
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As a developer, Have you ever wondered : You type a Gmail username and UI instantly shows "Username already taken"... There are millions of users globally How is this check so fast?
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SEVERANCE SHOULD NOT BE TAXED !
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A socket is basically a port ?? Cracking The Backend Interviews out now : topmate.io/interviewswithsum…
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They are going after the VPs now !!
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Oracle banned !
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Cracking The Backend Interviews..
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अजयवीर सिंह उर्फ जय सिंह राठौड़ arrested ...
सोशल मीडिया के माध्यम से अजयवीर सिंह उर्फ जय सिंह राठौड़ नामक व्यक्ति द्वारा अपनी 12 वर्षीय बहन को ‘ग्लूकोमा’/‘विट्रियस हेमरेज’ जैसी बीमारी से पीड़ित बताकर, उसके आंखों के उपचार के नाम पर फर्जी दस्तावेज तैयार कर, आमजन की भावनाओं से खिलवाड़ करते हुए लोगों से गलत तरीके से धनराशि (Crowd Funding) प्राप्त किए जाने संबंधी शिकायत प्राप्त हुई थी। उक्त शिकायत का थाना बाह पुलिस द्वारा तत्काल संज्ञान लेते हुए प्राप्त तहरीर के आधार पर संबंधित व्यक्ति के विरुद्ध सुसंगत धाराओं में अभियोग पंजीकृत करते हुए अभियुक्त को गिरफ्तार किया गया है तथा अग्रिम वैधानिक कार्यवाही प्रचलित है। @DeepakKumarIPS #UPPolice
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VPs will be sending at least 10% of their team in PIP this year...
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Tech Lead tells you: "Never delete data, just add is_deleted = true for all tables." Will you agree?
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Tech Lead speaks in the meeting: "If two requests come from same IP and port, they are the same user." Manager says : "Makes sense" What do you say?
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This is cool stuff by Topmate... They create my store.. topmate.io/interviewswithsum…
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As a developer , Do you know the difference between Dependency Inversion, Inversion of Control, and Dependency Injection ?
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I am not happy with Claude's speed .
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Cracking The Backend Interviews....
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Bittu Tabahi is my HERO 🇮🇳
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Tech Lead tells you to store this info in JWT, its the best place : { "userId": 123, "role": "ADMIN" } Will you do it ?
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You see this DTO: class CustomerDTO { String name; String email; List<OrderDTO> orders; } And OrderDTO contains: CustomerDTO customer; What problem could this create during JSON serialization?
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I know this is just fun post but I get the logic lol
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You see this entity: @ Entity class Order { @ ManyToOne Customer customer; @ OneToMany List<OrderItem> items; } An API returns 1000 orders. What performance problem could this create?
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Best place to store auth tokens ?? - local storage or - cookie or - database or - a paper or - mind
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