In this quick journal entry, we'll explore how to create Spring Boot Console App. It will be a very simple console-based application. For creating this application, we will be using the Spring Initializr project. Spring Initializr - Create a … [Read more...] about How To Create Spring Boot Console Application
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How to Handle Exceptions in Spring Boot
When you are developing an enterprise applications, handling exceptions and errors in APIs is very important. APIs should always send the proper response to the client whether its a HTTP Status OK or at any exception level a proper 4XX status should … [Read more...] about How to Handle Exceptions in Spring Boot
Understanding BlockingQueue in Java
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 use internal … [Read more...] about Understanding BlockingQueue in Java
How to set $JAVA_HOME environment variable on Mac OS X
In this journal entry we will see how we can setup the $JAVA_HOME environment variable on Mac OS X 10.5 or later versions. From OS X 10.5, Apple introduced a command line tool (/usr/libexec/java_home) which dynamically finds the top Java … [Read more...] about How to set $JAVA_HOME environment variable on Mac OS X
How to find the size of a directory, using Hadoop?
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 find the … [Read more...] about How to find the size of a directory, using Hadoop?
Change Context Path in Spring Boot Application
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 this journal … [Read more...] about Change Context Path in Spring Boot Application
How to Transfer file through SFTP in Java
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 will be using … [Read more...] about How to Transfer file through SFTP in Java
Understanding null in Java
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 there for a … [Read more...] about Understanding null in Java
Understanding Java Thread Pool with Example
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 tasks to … [Read more...] about Understanding Java Thread Pool with Example
How to Build a Data Pipeline using Flink and Kafka
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 and … [Read more...] about How to Build a Data Pipeline using Flink and Kafka