Author Archives: Online Education

The complexity of your data landscape grows with each data source, each set of business requirements, each process change, and each new regulation. Finding the most suitable ETL process for your business can make the difference between working on your data pipeline or making your data pipeline work for you. The best approach takes intoContinue reading “Top ETL options for AWS data pipelines”

Welcome to the Azure DevOps Services REST API Reference. Representational State Transfer (REST) APIs are service endpoints that support sets of HTTP operations (methods), which provide create, retrieve, update, or delete access to the service’s resources. This article walks you through: The basic components of a REST API request/response pair. Overviews of creating and sendingContinue reading “Azure DevOps Services REST API Reference”

java.util.ConcurrentModificationException is a very common exception when working with Java collection classes. Java Collection classes are fail-fast, which means if the Collection will be changed while some thread is traversing over it using iterator, the iterator.next() will throw ConcurrentModificationException. Concurrent modification exception can come in case of multithreaded as well as a single threaded java programming environment. This exception mayContinue reading “java.util.concurrentmodificationexception with example in Java”

Some of the all-time best books for Java programmers ranging from core Java to best practices to unit testing to spring framework. If you are a Java programmer and are wondering what to read to improve your knowledge of Java or become a better Java developer, then you have come to the right place. In thisContinue reading “Top 10 Java Books for Programmers — All time Great”

There are not many technologies that can brag about staying relevant for more than 20 years. But this year, Java was voted the 3rd most popular technology, eclipsed only by undisputed leaders JavaScript, HTML, CSS, and SQL. While it’s 18th on the list of most loved in the same StackOverflow survey, it’s also way down theContinue reading “Good and Bad of Java Programming”

A binary search tree (BST), sometimes also called an ordered or sorted binary tree, is a node-based binary tree data structure which has the following properties: The left subtree of a node contains only nodes with keys less than the node’s key. The right subtree of a node contains only nodes with keys greater thanContinue reading “Binary search tree in java with example”

The Java Stack class, java.util.Stack, is a classical stack data structure. You can push elements to the top of a Java Stack and pop them again, meaning read and remove the elements from the top of the stack. The Java Stack class actually implements the Java List interface, but you rarely use a Stack as a List – except perhaps if you need to inspect all elements currently storedContinue reading “Stack in Java Collections with Example”

A doubly-linked list is a linked data structure that consists of a set of sequentially linked records called nodes. Each node contains two fields, called links that are references to the previous and to the next node in the sequence of nodes. The beginning and ending nodes previous and next links, respectively, point to someContinue reading “Doubly Linked List in Java with Example”

AWS SDK for Java Developer Guide: The AWS SDK for Java provides a Java API for Amazon Web Services. Using the SDK, you can easily build Java applications that work with Amazon S3, Amazon EC2, Amazon SimpleDB, and more. We regularly add support for new services to the AWS SDK for Java. For a list of theContinue reading “Building Java Reference Documentation for Earlier SDK versions”