Top Tweets for #Hackerrank
#Day3
Did NumPy and practiced some Python problems on HackerRank.
#Python #NumPy #HackerRank #AI #Programming #CodingJourney
Java Singleton π
β’ private constructor = no new from outside
β’ static instance = one object, always
β’ s1 == s2? Always true.
This pattern powers loggers, config managers, DB pools.
#Java #DesignPatterns #HackerRank #Coding #100DaysOfCode
π Pizza? π Cake?
Your code shouldn't care β the Factory Pattern handles it.
One method. Right object. Every time.
Solved HackerRank Java Factory Pattern π»
#Java #DesignPatterns #HackerRank #100DaysOfCode #BuildInPublic
99% of beginners think 1 is prime.
It's NOT.
Here's the Java trick that solves HackerRank Prime Checker without overloading:
β Use int... nums (varargs)
β Loop only to βn (i*i β€ n)
β One static import kills the compile bug
#Java #HackerRank #100DaysOfCod
Java has a superpower most devs ignore β Reflection πͺ
Today I solved HackerRank: Java Reflection β Attributes
β Student.class + .getMethods() + Collections.sort()
= Accepted β
#JavaGrind
#HackerRank #Java #100DaysOfCode #AdityaBhole
4/ Output: 1+2=3 1+2+3=6 1+2+3+4+5=15 1+2+3+4+5+6=21 Challenge 52/64 solved. Varargs > overloading. Every time. #Java #HackerRank #100DaysOfCode
Java devs β exception handling isn't about crashing less.
It's about CONTROLLING how you crash.
HackerRank: compute n^p β but guard negative inputs AND double-zero.
7 lines of Java. All test cases. First try. π₯
Watch β #Java #HackerRank #100DaysOfCode
Java just crashed because someone typed "Hello" instead of a number π
Here's how try-catch saves your program in 3 steps:
β
TRY β run risky code
β‘ CATCH InputMismatch β not an integer? handled
π₯ CATCH Arithmetic β divide by zero? handled
#Java #100DaysOfCode #HackerRank
Just earned the Software Engineer Intern Certification from HackerRank π
Happy to keep improving my coding + software engineering skills step by step π»π₯
#HackerRank #SoftwareEngineer #Coding #Tech #Java #Developer
Oh God π
I missed posting my #100DaysOfCode journey on Day 1 it self,But To be honest I did stay consistent and solved a few basic problems on Hacker Rank to earn the 5β Java badge ,
Hereβs my proof of work π
#Java #DSA #Coding #HackerRank #Programming #DeveloperJourney
Starting my #100DaysOfCode challenge today π
Goal for the next 100 days:
β’ Master DSA from Basics β Advanced
β’ Improve problem-solving skills
β’ Become interview ready
β’ Stay consistent every single day
Iβll be sharing my daily progress, here
May24th to Aug31st
Java Iterator challenge on HackerRank.
Most people: write a for-loop, track indexes, copy to a new list.
The actual solution: 2 lines.
Java iterators are stateful β break after "###" and the cursor stays there. Return the iterator. Done.
#Java #HackerRank #DSA
done with Goldmann Sachs CS hackathon .. 2nd and 3rd question were basic and mostly everyone solved them but the first was ...
#GSIH #Hackerrank
Tech: Node.js, LLMs, RAG, NLPStill learning.
Still building.#AI #LLM #Python #buildinpublic #RAG #AIAgents #webdev #HackerRank
Java's instanceof keyword
You have a mixed ArrayList β Students, Rockstars, Hackers.
How do you count each type?
β if (obj instanceof Student) sCount++;
β if (obj instanceof Rockstar) rCount++;
β if (obj instanceof Hacker) hCount++;
That's it
#Java #HackerRank #OOP #Java
ποΈ Just solved HackerRank: Java Method Overriding 2 (Super Keyword)
super.whatsMyPurpose();
β³ Child prints its own message
β³ Then calls parent's method via super
β³ Two lines of output. One override. Zero confusion.
This is why OOP is beautiful π§¬
#Java #HackerRank #OOP
@hackerrank Grateful to @HackerRank for a well-structured challenge.
Excited to keep building in AI systems and applied ML π
#AI #RAG #AIAgents #HackerRank #Orchestrate2026
π Java Tip of the Day
Tried doing this?
Book b = new Book();
Java: β βNope, it's abstract.β
Solution?
β Create a class that extends it
β Override setTitle()
β Print the title like magic β¨
Tiny change β Big clarity.
#Java #HackerRank #CodingTips #OOP
Java inheritance in 10 seconds π
Animal β walk
Bird β walk + fly + sing
Child class = parent powers + new powers.
Thatβs literally the whole HackerRank problem ππ₯
#Java #HackerRank #OOP #Developers #Coding #LearnJava
Just earned my Bronze Badge in SQL on HackerRank! π
Learning, practicing, and leveling up every day in Data & SQL.
https://t.co/ZPatNk0IBi
#SQL #HackerRank #DataAnalytics #DataScience #Programming #Coding #Tech #LearningInPublic
I ranked #3 in the Orchestrate! π
Check out the leaderboard: https://t.co/HpGWHky24U
#hackerrank @hackerrank
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