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TigerCard - Fare Calculation Problem

TigerCard - Fare Calculation Problem

Design Problem Learning To Code Software Design Software Development SOLID TigerCard
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

Singleton Design Pattern

Design Patterns
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

Find the depth of a large but evenly distributed Json

Algorithm BlueOptima Design Problem High Performance Java Java 8 Multithreading Scalability Software Design
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?

Java Primitives vs Wrapper : Which one to use?

Coding Java Java 8 Object Oriented Object Oriented Design Programming Software Development
Just for the reference, In java  primitive type variables  occupy below s...
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Difference Between Java Monitor and Lock

Difference Between Java Monitor and Lock

Java Java 8 Java Concurrency Locking Multithreading Object Oriented Programming Software Development
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?

Java Synthetic Methods — What are these?

Java Java 8 Java Compiler JVM Programming Software Development
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 ?

Should I use DB to store file ?

Aadhar Database Document Store File System MongoDB RDBMS Scalable Design
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

Food for thought — Writing Code From Scratch

Java Java 8 Learning To Code Programming Reinvent Software Design Software Development
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

Basic Mistakes of Writing Getters/Setters in Java

Coding Java Java 8 Object Oriented Object Oriented Design Programming Software Development
Well, after reading the title, first thought which comes to mind is ...
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Why to use Hikari Connection Pool ?

Why to use Hikari Connection Pool ?

Connection Pooling High Performance Java Java 8 Java Concurrency JVM Programming Scalability Spring
Hikari  Connection Pooling (or Hikari CP) is the new kid on the block, though a late entrant in pooling mech...
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Parsing Huge XLSX files ins fastest possible way

A pache POI is the most common open source Java library used in the XLSX file parsing but it is very memory ...

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    Parsing Huge XLSX files ins fastest possible way
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    Choosing data type for monetary Calculation (In Java)— Float ? Double ? Or Bigdecimal

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