C M Abdullah Khan

Open Source Contributor @springboot, @micronautfw | Volunteer at Java User Group Bangladesh (JUGBD)|
Oracle Certified Java Programmer | Open Source Enthusiast

[Mustafa @oprydai]

most people learn computing from the software side.

variables
loops
functions
APIs

but underneath all of it is hardware.

gates
flip-flops
clocks
registers
state machines
parallel logic

learning fpgas by justin rajewski

is a beginner path into digital design using mojo and lucid HDL.

the key shift:
• you are not writing instructions for a processor.
• you are describing hardware itself.
• software runs step by step.
• fpga logic runs in parallel.

that changes how you think:
• time matters
• clock cycles matter
• signal timing matters
• state transitions matter

learning fpgas teaches you how computers are built below the abstraction layer.

not as code.
as circuits that think in logic.

Affiliate link: https://t.co/CtVfnpoHNr

[Tom Dörr @tom_doerr]

Decodes Claude Code architecture using source maps

https://t.co/U4bb3ORqME

[C M Abdullah Khan @cmabdullah21]

Good code survives contact with changing requirements

[Matt Dancho (Business Science) @mdancho84]

80% of data scientists say they want to build AI agents.

Almost none of them can answer this question:

Which agentic pattern should you actually use?

[Denis Laskov 🇮🇱 @it4sec]

Remote Code Execution (RCE) in Yamaha synthesizers: an exploit in MIDI files & a hidden backdoor 🎹♫💉👨🏻‍💻🎉

More details on:
LinkedIn: https://t.co/tbjClhHRqq
Substack: https://t.co/R6DLQmGZPX

[C M Abdullah Khan @cmabdullah21]

I am grateful after this year’s JDC. Months of effort came together, and the energy from speakers, participants, and volunteers made it truly special.
Real-world insights, shared resources, and engaged discussions reminded me why community matters.
Here’s to growing together.

[Ana Maria Mihalceanu 🇳🇱🇷🇴 @ammbra1508]

Earlier this afternoon, the registration for #JavaOne 2026 opened! Grab the early bird discounted ticket while available and see you next year 🤗!!!

#Java #conference #CommunityFirst

[C M Abdullah Khan @cmabdullah21]

@elonmuskTN 13

[C M Abdullah Khan @cmabdullah21]

Like rivers drawn to the sea, every sacred sign and silent whisper flows toward one truth.

[C M Abdullah Khan @cmabdullah21]

She is the final destination where every cosmic sign, divine light, and inner knowing converge, my heart has reached home.
#cercaTrova

[C M Abdullah Khan @cmabdullah21]

Excited to share that my contribution to the @micronautfw (Micronaut Kafka) repository has been merged! I worked on improving an existing feature.

https://t.co/rWmyuhouLg

[C M Abdullah Khan @cmabdullah21]

What is that in your right hand, O Moses?

20:17

[Jakarta EE @JakartaEE]

🤖 Join @bazlur_rahman and @syshaaf at #Devnexus 2025 for "Java + LLMs: A Hands-on Guide to Building LLM Apps in Java with #JakartaEE."

Get a 20% discount using the code DN25JAKARTA https://t.co/sRyKrgDqbj
#JakartaEE

[Javarevisited @javarevisited]

Top 5 System Design Interview Questions
1. Youtube Design - https://t.co/26ro70AavE
2. URL Shortner - https://t.co/0R0Kt223Dq
3. WhatsApp - https://t.co/Lj99Pe0hZt
4. Parking Lot - https://t.co/NvWS6iHWAR
5. LMS - https://t.co/jmUdzL3UGx
7. TinyURL - https://t.co/I5um0X72I1

[C M Abdullah Khan @cmabdullah21]

@vlad_mihalcea Congratulations

[A N M Bazlur Rahman 🇧🇩🇨🇦 @bazlur_rahman]

With JEP 477, we're finally getting a shorter println method!

void main() {
println("Hello, World!");
}

The above would be possible in JDK 23
Ref: https://t.co/PB3RwIudVh

#Java #println

[Alex Xu @alexxubyte]

My recommended materials for cracking your next technical interview

Coding
- Leetcode
- Cracking the coding interview book
- Neetcode

System Design Interview
- System Design Interview Book 1, 2 by Alex Xu, Sahn Lam
- Grokking the system design by Design Guru
- Design Data-intensive Application book

Behavioral interview
- Tech Interview Handbook (Github repo)
- A Life Engineered (YT)
- STAR method (general method)

OOD Interview
- Interviewready
- OOD by educative
- Head First Design Patterns Book

Mock interviews
- Interviewingio
- Pramp
- Meetapro

Apply for Jobs
- Linkedin
- Monster
- Indeed

Over to you: What is your favorite interview prep material?

--
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[C M Abdullah Khan @cmabdullah21]

Now we are victorious we’ve become our slaves A land of hope and glory building graveyards for the brave
#IronMaiden

[C M Abdullah Khan @cmabdullah21]

Your home should be a sanctuary from the outside world, not another source of stress!
#harvey