Comparable vs Comparator

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Purpose: Comparable/Comparator are used to allow comparison of two or more objects. For example you have Person object and you want to add a natural ordering of each person by age. In other words to keep the order of each person from youngest to oldest or vice versa in a ordered collection like TreeSet (There are other ordered […]

Java Home

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 Basics Refresher Java Basic Concepts (JDK/JRE/JVM,  stack heap) Balanced Braces Algorithm Comparable vs Comparator Set vs List vs Map Static vs Instance variables How to turn on Profiler Declaration And Access Control Java 8 Lambda  Functional Interfaces Java.util.function library Completable Future Streams Hibernate Hibernate – A collection with cascade=”all-delete-orphan” was no longer referenced by the […]

Amazon Webservices Solutions Architect Certification

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Amazon Webservices Solutions Architect Certification Resources Elastic Cloud Compute (EC2) Autoscaling EBS vs EFS Relational Database Services (RDS) Storage Simple Storage Service (S3) Storage Gateway CloudFront Identity and Access Management (IAM) VPC VPC Peering VPC, NAT, Bastion Route 53 Application Services Simple Queue Service Simple Notification Service Kinesis Cloudwatch NOTES Solutions Architect Associate – Additional […]