codelum

let’s code 🤓

[codelum @codelumdev]

lol

[codelum @codelumdev]

@javarevisited Content Delivery Networks.

[codelum @codelumdev]

Docs have always existed, even if they were on papyrus

[Aryan @justbyte_]

How did people learn coding back then when there were no docs or YouTube tutorials?

[codelum @codelumdev]

camelCase wins anyDay!

[𝐑.𝐎.𝐊 👑 @r0ktech]

As a developer,what will you choose ?

[codelum @codelumdev]

When you really think about it, in a few years (if not months), most emails are just going to be AI models talking to each other 😅

[Entrepreneur @Entrepreneur]

As AI accelerates executive content creation, leaders face a new credibility gap: the more efficient communication becomes, the harder it is to sound human. https://t.co/7CR7PHGhaf

[codelum @codelumdev]

There's a funny thing that happens when you study system design.

You start with one goal: pass the interview. You grind, you cram, you optimize every answer for the interviewer sitting across from you.

Then you get rejected. Enough times that something in you just... lets go.

You slow down.

And in that slower pace, something shifts. You already know the job hunt is half luck — a coin flip dressed up in a suit — so you stop racing. You stop performing. You just read.

That's when it gets interesting.

Somewhere between giving up on impressing anyone and just showing up for yourself, the material starts to click. The concepts stop feeling like weapons to survive interviews and start feeling like ideas worth understanding. You catch yourself going deeper than you need to, following curiosity instead of a study guide.

You're not learning to get hired anymore. You're learning because it's actually fascinating.

And then a strange thing happens to how you see interviews — they stop being interrogations you need to survive. They become something closer to a conversation about interesting problems. A chance to think out loud. Even, occasionally, fun.

The job stopped being the point. And somehow, that might be exactly what makes you good at this.

[codelum @codelumdev]

Its never too late!

[Akash @kaaaash____]

I’m 22 and I want to start learning DSA now.

Be honest… am I already late?

[codelum @codelumdev]

Building…

[tara_ @TechByTaraa]

What’s the hardest part of building a product ?

1. Building

2. Marketing

3. Monetizing

4. Getting users

[codelum @codelumdev]

Brutal but true

[Naval @naval]

Coding an app is the new starting a podcast.

[codelum @codelumdev]

Instead of trying to learn all about a framework before you start building that project, just start building ! #learnbydoing

[codelum @codelumdev]

💯

[Sahil @sahill_og]

Vibe coding is best for people who already know how to code.

[codelum @codelumdev]

Keep the more productive one? 🤷🏾‍♂️

[Ray🫧 @ravikiran_dev7]

Who's getting fired first?

1. A developer who relies heavily on AI tools
2. A developer who doesn't use AI tools

[codelum @codelumdev]

@javarevisited Great point!

[codelum @codelumdev]

Just started learning React Native, hope this journey is worth it :)

#reactnative

[codelum @codelumdev]

And so it begins!

#apple #macbook

[codelum @codelumdev]

Nothing is impossible truly 😹

[Deadspin @Deadspin]

Imagine tearing your ACL playing poker

[codelum @codelumdev]

The joy!

[codelum @codelumdev]

The joy!

[codelum @codelumdev]

Many software devs hit this problem 👇
You have a HashMap, but you need to look up a key by value.

Most people end up iterating the map → O(n) 😬

Better solution? Guava’s BiMap 🚀

BiMap is a bidirectional map where both keys and values are unique, giving you fast lookups in both directions (O(1)).

No more containsValue()
No more manual iteration
Just clean, efficient lookups 🔥

Follow for more tips
#Java #Guava #SoftwareEngineering

[codelum @codelumdev]

Many software devs hit this problem 👇
You have a HashMap, but you need to look up a key by value.

Most people end up iterating the map → O(n) 😬

Better solution? Guava’s BiMap 🚀

BiMap is a bidirectional map where both keys and values are unique, giving you fast lookups in both directions (O(1)).

No more containsValue()
No more manual iteration
Just clean, efficient lookups 🔥

Follow for more tips
#Java #Guava #SoftwareEngineering