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Vaibhav Singh

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System Interaction Design of Sponsored SMS systems

How to build & scale a Sponsored SMS(Short Messaging system) for 200 Millions Messages per day ?

Jul 11, 2021

System Interaction Design of Sponsored SMS systems

Jul 11, 2021

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Vaibhav Singh
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Null Check vs Optional? Are they same

When this question was asked in an interview, like everyone I answered “Java 8 has introduced this new class Optional in java.util…

Nov 4, 2020

Null Check vs Optional? Are they same

Nov 4, 2020

Vaibhav Singh

TigerCard — Fare Calculation Problem

Build a Fare Calculation Engine by applying SOLID principles

Oct 16, 2021

Fare Calculator

Oct 16, 2021

Vaibhav Singh
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Javarevisited

How to host your repository JS/CSS on Open Source CDN “jsDelivr”

jsDelivr CDN service over Github assets.

Oct 6, 2020

How to host your repository JS/CSS on Open Source CDN “jsDelivr”

Oct 6, 2020

Vaibhav Singh
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Javarevisited

Assocative array like implementation in JAVA

This blog entry provides an implementation of Dictionary interface as named index based Associative Array.

Sep 15, 2020

Assocative array like implementation in JAVA

Sep 15, 2020

Vaibhav Singh
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Javarevisited

How to choose Upper & Lower bounds in Java Generics ?

Guidelines for upper or lower bound while using generics in Java.

Jun 18, 2020

How to choose Upper & Lower bounds in Java Generics ?

Jun 18, 2020

Vaibhav Singh
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Javarevisited

Java Compiler Optimization for String Concatenation

String concatenation was a costly affair in the early Sun Java versions(till JDK1.4 to be precise). Even though later JDK’s brought the…

Jun 13, 2020

Java Compiler Optimization for String Concatenation

Jun 13, 2020

Vaibhav Singh

Problem Series 1— Find the depth of large Json

Blue optima Interview Question for Principal Software Engineer

May 29, 2020

Problem Series 1— Find the depth of large Json

May 29, 2020

Vaibhav Singh
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DataDrivenInvestor

Basic Mistakes of Writing Getters/Setters in Java

This blog throws light on basic mistakes made by developers while coding simple getter/setter for any business object in Java.

Apr 14, 2020

Basic Mistakes of Writing Getters/Setters in Java

Apr 14, 2020

Vaibhav Singh
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DataDrivenInvestor

Why to use Hikari Connection Pool ?

Brief introduction about Hikari Connection Pool and some of the optimizations under the hood.

Apr 1, 2020

Why to use Hikari Connection Pool ?

Apr 1, 2020

Vaibhav Singh

Vaibhav Singh

I am a #TechnologyEnthusiast #Coder #JavaProgrammer #Blogger (https://linqz.io) #Dreamer. In my free time I love to #Cook, #ShareStories & #VolunteerForPoor.

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