Code Monk

Tech forum for Java, algorithms & data-structures, Hibernate, RESTful API, Spring framework, Microservices architecture, Interview questions, Python, SDET, Machine learning, DevOps.

AWS Lambda Interview Questions for Developers

Upasana | September 07, 2022 | | 0 views | Python Coding Problems AWS Tutorials

AWS Lambda Interview Questions for Java, Python and Kotlin developers - What is AWS Lambda, What are pros and cons of using lambda, etc.

Read Article

S3 File upload & download with AWS Java SDK v2

Upasana | August 23, 2022 | 4 min read | 4,118 views | AWS Tutorials

Spring boot program for S3 upload and download using AWS Java SDK v2. Object level operations on S3 bucket including PutObject, GetObject and GetUrl operation on S3 Objects

Read Article

AWS SDK 1.x - S3 file download & upload

Upasana | August 23, 2022 | 3 min read | 216 views | AWS Tutorials

We will use Amazon AWS SDK 1.x to make file upload and download from S3 bucket using Spring Boot application.

Read Article

Java program for Fibonacci Series

Upasana | August 23, 2022 | 1 min read | 1,015 views

Fibonacci series is series of natural number where next number is equivalent to the sum of previous two number. We will write a Java implementation for Fibonacci Series in his article.

Read Article

Difference between Loss, Accuracy, Validation loss, Validation accuracy in Keras

Upasana | August 11, 2022 | 3 min read | 8,750 views

When we have built the model but would like to validate it by inducing different datasets. Usually we face constraint in terms of amount of accurate data we have for training. But validating model is also necessary so that we can rely on model based on it evaluation through validation dataset.

Read Article

Difference between ExecutorService submit and execute method

Upasana | June 23, 2022 | 2 min read | 17 views

You should prefer to use submit() method because it gives more flexibility to the programmer in terms of execution control i.e. you can check status of task, cancel a task or get the results of task. Additionally a better exception handling is possible using submit().

Read Article

Install RabbitMQ and Erlang 23 on Ubuntu 20

Upasana | 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 Article

Part 3: Dockerize Flask application and build CI/CD pipeline in Jenkins

Upasana | 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 Article

Spring RestTemplate Basic Authentication

Upasana | 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 Article

Given a collection of 1 million integers, all ranging between 1 to 9, sort them in Big O(n) time

Upasana | 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 Article