In this example we will look briefly at the basics of Exception, in Java Programming Language. We will also see, how to create a custom Exception Class. 1. Basics of Exception As per oracle docs, An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program’s instructions. In laymen terms, when a condition occurs, in which the routine is not … Continue reading Java Custom Exception Example
In this JAX Magazine sneak preview, JAX London speaker Angelika Langer answers the most important question for anyone using Java streams: are they really faster? Java 8 came with a major addition to the JDK collection framework, namely the stream API. Similar to collections, streams represent sequences of elements. Collections support operations such as add(), remove(), and contains() that work on a single element. Streams, in contrast, have bulk … Continue reading Java performance tutorial – How fast are the Java 8 streams?
You might think that if you are programming in Java, what do you need to know about how memory works? Java has automatic memory management, a nice and quiet garbage collector that quietly works in the background to clean up the unused objects and free up some memory. Therefore, you as a Java programmer do not need to bother yourself with problems like destroying objects, … Continue reading Java Memory Management
Continuous delivery is all about reducing risk and delivering value faster by producing reliable software in short iterations. As Martin Fowler says, you actually do continuous delivery if: Your software is deployable throughout its lifecycle. Your team prioritizes keeping the software deployable over working on new features. Anybody can get fast, automated feedback on the production readiness of their systems any time somebody makes a … Continue reading Continuous Integration and Delivery with Docker
JVM thread maps to OS thread is a commonly read statement. But what does it really mean?. We create Thread object in java and call its start method to start new thread. How does it start OS thread? and how the run method of the Thread object is attached to the OS thread that is executed? To explain what happens inside JVM, I have created … Continue reading Map Java thread to OS thread
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