TigerCard - Fare Calculation Problem

With the recent introduction on Java 17 by Oracle,  I thought to revise the software  principles (like SOLID, KISS, YAGNI etc) whic...

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Singleton Design Pattern

Different ways to make Thread Safe Singleton Eager Initialization JVM Lazy load  - (Best object oriented way) Enum Double Check locking Eage...

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Find the depth of a large but evenly distributed Json

OECD (The Organisation for Economic Co-operation and Development) regularly publishes country data for various financia...

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Java Primitives vs Wrapper : Which one to use?

Just for the reference, In java  primitive type variables  occupy below s...

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Difference Between Java Monitor and Lock

As  we all are aware, in Java programming language  each object  in Java is  associated  with a  monitor , which a t...

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Java Synthetic Methods — What are these?

I am one of those curious souls who scrolls through all the functions of the Javado...

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Should I use DB to store file ?

I have recently encountered a large scale system which used Oracle DB for storing images, PDF's, Word Documents e...

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Food for thought — Writing Code From Scratch

What I cannot create, I do not understand. — Richard’s last words on his blackboard at the tim...

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Basic Mistakes of Writing Getters/Setters in Java

Well, after reading the title, first thought which comes to mind is ...

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Why to use Hikari Connection Pool ?

Hikari  Connection Pooling (or Hikari CP) is the new kid on the block, though a late entrant in pooling mech...

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