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Tech forum for Java, algorithms & data-structures, Hibernate, RESTful API, Spring framework, Microservices architecture, Interview questions, Python, SDET, Machine learning, DevOps.
Install RabbitMQ and Erlang 23 on Ubuntu 20
Carvia Tech | September 04, 2021 | 2 min read | 552 views
This article will walk you through Erlang 23 and RabbitMQ installation on Ubuntu 20 focal server using apt.
Read ArticlePart 3: Dockerize Flask application and build CI/CD pipeline in Jenkins
Carvia Tech | February 09, 2021 | 3 min read | 2,177 views | Flask - Python micro web framework
This article covers Flask API Containerization using Docker, Setting up CI/CD pipeline using Jenkins and Cloud deployment
Read ArticleAWS Java SDK 2 - S3 File upload & download
Carvia Tech | January 05, 2021 | 4 min read | 4,118 views | AWS Tutorials
In this tutorial, we will walk through new AWS SDK 2 for doing object level operations on S3 bucket. We will specifically cover PutObject, GetObject and GetUrl operation on S3 Objects using AWS SDK 2
Read ArticleSpring RestTemplate Basic Authentication
Carvia Tech | December 26, 2020 | 3 min read | 2,287 views
We will configure RestTemplate with basic authentication credentials in a Spring Boot application using RestTemplateBuilder.
Read ArticleGiven a collection of 1 million integers, all ranging between 1 to 9, sort them in Big O(n) time
Carvia Tech | November 22, 2020 | 2 min read | 669 views | Java Coding Challenges algorithm-datastructures
This is a typical Integer Sorting problem with a constraint that the number range to sort is very limited in spite 1 million total entries. Integer Sorting with limited range is achieved efficiently with Bucket Sorting.
Read ArticleGoldman Sachs Java Interview Questions
Carvia Tech | November 22, 2020 | 4 min read | 3,022 views | investment banking
Goldman Sachs Java Interview Questions on core java problems, coding challenges, data structures and algorithms, performance issues, design problems, and testing aspects.
Read Article50 microservices interview questions for Java developers
Carvia Tech | November 22, 2020 | 2 min read | 1,250 views | microservices-architecture
50 Spring Microservices interview questions for experienced Java Developers - core concepts, oauth2 security, testing microservices, deployment patterns, and best practices
Read ArticleDialoglfow fulfillment with Spring Boot
Carvia Tech | November 21, 2020 | 2 min read | 649 views
In this tutorial we will learn how to implement Google Dialogflow response fulfilment webhook API with a Spring Boot application.
Read ArticleRun method on Spring Boot startup
Carvia Tech | November 21, 2020 | 3 min read | 15,465 views | spring-boot
Spring Boot provides different mechanisms to run a specific method at Application Startup: PostConstruct, CommandLineRunner, ApplicationReadyEvent and ApplicationRunner
Read ArticleCRC32 checksum calculation Java NIO
Carvia Tech | November 21, 2020 | 1 min read | 100 views
Java FileChannel provide much better performance than the BufferedInputStream and RandomAccessFile classes.
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