Vipin

Vipin has asked 16 questions and find answers to 18 problems.

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I help professional Java developers learn language features so they can get the best Java jobs!

Vipin questions

Why ConcurrentHashMap.Segment and ConcurrentHashMap.HashEntry classes are static?
Find number of elements in range from map object
Pandas groupby+transform on 50 million rows is taking 3 hours
jcmd VM.set_flag, which flags are writable?
Why is the sum of reciprocals using a for-loop ~400x faster than streams?
why there is difference in Heap dump size generated by jmap and jcmd?
How to check empty gzip file in Python
How to find schema name in Oracle ? when you are connected in sql session using read only user

Vipin answers

Java bytecode manipulation without external library
how to see the git commands executed by Intellij
Pandas - Strip white space
Ant build won't run in Eclipse
How to identify holder of reference to object in Java Memory Analyzer using heap dump
A web application appears to have started a thread named [22] but has failed to stop it. This is very likely to create a memory leak
java - best way to determine -Xmx and -Xms required for any webapp & standalone app
ReentrantLock vs synchronized on CPU level?
Difference b/w intrinsic locking, client side locking & extrinsic locking?
How does a for loop check its conditions in Java?