Arvind Singh @arvindsinghjava
I am a Microservices Developer with hands-on experience designing, developing, and deploying scalable Spring Boot microservices. With a strong background in Jav arvindsinghh.github.io/my_portfolio/ Joined June 2025-
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Find Frequency of Each Character in Java | String Interview Question youtu.be/dfz8U-NyKO0?si… via @YouTube
Which of the following is not a feature of Java? a) Object-Oriented b) Platform Independent c) Pointer Usage d) Robust
Which of these is not a valid Java keyword? A) static B) void C) main D) volatile
Mastering Java Stream API | Live Problem Solving & Real-Time Coding youtube.com/live/u9dtKgfs9… via @YouTube
Success! Just solved Average Population of Each Continent on @hackerrank. Can you complete the challenge? hr.gs/dcdffe #programming
Success! Just solved African Cities on @hackerrank. Can you complete the challenge? hr.gs/dcbbc #programming
solve mysql wiith me youtube.com/live/P1WPVb-tK… via @YouTube
Success! Just solved Type of Triangle on @hackerrank. Can you complete the challenge? hr.gs/abdadd #programming
Just solved all Basic Select challenges in SQL on @hackerrank. Try it out! hr.gs/1v49 #programming
Success! Just solved Employee Names on @hackerrank. Can you complete the challenge? hr.gs/afadfa #programming
Success! Just solved Higher Than 75 Marks on @hackerrank. Can you complete the challenge? hr.gs/ecbccc #programming
Success! Just solved Weather Observation Station 12 on @hackerrank. Can you complete the challenge? hr.gs/ccadba #programming
Success! Just solved Weather Observation Station 11 on @hackerrank. Can you complete the challenge? hr.gs/aeecaf #programming
Just earned my 2nd star on the Sql Badge on HackerRank! hackerrank.com/0arvindsingh1?…
Success! Just solved Weather Observation Station 9 on @hackerrank. Can you complete the challenge? hr.gs/cecdf #programming
Success! Just solved Weather Observation Station 8 on @hackerrank. Can you complete the challenge? hr.gs/eie #programming
comment output select distinct(city) from station where Lower(city) REGEXP '^[aioue]'and Lower(city) REGEXP '[aioue]$'
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