java

The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. In this journal entry, we will try to answer the question "How to…

The default context path of the Spring Boot application is the root context path("/"). Usually, conventions are preferred over configuration; however, there may be cases when we want to have a custom context path of our application. In…

In this journal entry, we will be looking at the methods on how to transfer a file through SFTP in Java on a remote server. The main point of focus is basically uploading and downloading the files from a remote server using SFTP. We…

Java and null share a unique bond. Almost all of the Java developers get trouble with the NullPointerException and this is the most infamous fact about null and Java. In this journal, we will be understanding null in Java. Null was…

In this journal entry, "Understanding Java Thread Pool", we will be answering to the question "Why the application need a thread pool?". Well the answer to this is when we develop a simple application in Java which needs some concurrent…

In this journal blog, we are going to have a look at how to build a data pipeline using Flink and Kafka. But before we start let's first understand what exactly these two technologies are. Apache Flink is a stream processing framework…

BlockingQueue interface in Java was first introduced in Java 1.5. BlockingQueue interface supports flow control by introducing blocking if either BlockingQueue is full or empty. All methods of BlockingQueue are atomic in nature and…

With the release of JDK 5, Java included a new feature that helped in simplifying the method creation which require or need to take a variable number of arguments. This feature is called varargs and it is short for variable-length…

The package java.util contains one of the Java’s most powerful subsystems: the Collections Framework. The Collections Framework is a modern chain of the importance of interfaces and classes that give cutting-edge innovation for managing…

In this journal entry, we’ll be showcasing how to monitor some of the key metrics like disk usage, memory usage, and CPU usage using Core Java.