What is happens-before in Java Concurrency? An example

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A couple of days ago, one of my readers messaged me on LinkedIn about a Java interview question he has recently faced - what is the happens-before relationship in Java concurrency? What is the benefit of it, and how exactly it works? He kind of has some ideas...

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Difference between SendRedirect() and Forward() in JSP Servlet

Difference between SendRedirect and forward is one of classical interview questions asked during java web developer interview. This is not just applicable for servlet but also for JSP in which we can use forward action or call sendRedirect() method from scriptlet. Before examining difference on forward and SendRedirect...

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Difference between JRE JVM and JDK in Java Programming language

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JRE, JVM, and JDK are three terms you often heard in conjunction with Java programming language and most people either confuse them or think they all are same. In this java article, we will what is Java Run-time (JRE), what is Java virtual Machine (JVM) and what is...

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Introduction to HTTP/2 support in Java 9

1. Introduction The IETF streaming group approved the HTTP/2 protocol in 2015, sixteen years after HTTP/1.1 had been released. HTTP/2 comes with the promise of lowering latency and makes many of those workarounds obsolete which were necessary for HTTP/1.1 in order to be able to keep up with...

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Java Applet

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Applet is a special type of program that is embedded in the webpage to generate the dynamic content. It runs inside the browser and works at client side. Advantage of Applet There are many advantages of applet. They are as follows: - It works at client side so...

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What are the major features of Java programming?

Following are the notable features of Java: Object Oriented In Java, everything is an Object. Java can be easily extended since it is based on the Object model. Platform Independent Unlike many other programming languages including C and C++, when Java is compiled, it is not compiled into...

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Difference between Sun (Oracle) JVM and IBM JVM

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There are different JVM implementation available apart from popular Sun's (now Oracle) hotspot JVM like IBM's JVM. Now the question comes, what makes two JVM different to each other? Quite a lot of thing can be different even if two JVMs are implemented by following Java virtual machine...

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Transaction Management in JDBC

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Transaction represents a single unit of work. The ACID properties describes the transaction management well. ACID stands for Atomicity, Consistency, isolation and durability. Atomicity means either all successful or none. Consistency ensures bringing the database from one consistent state to another consistent state. Isolation ensures that transaction is...

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Java Database Connectivity with Oracle

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To connect java application with the oracle database, we need to follow 5 following steps. In this example, we are using Oracle 10g as the database. So we need to know following information for the oracle database: 1. Driver class: The driver class for the oracle database is...

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Difference between JDK, JRE, and JVM

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We must understand the differences between JDK, JRE, and JVM before proceeding further to Java. See the brief overview of JVM here. If you want to get the detailed knowledge of Java Virtual Machine, move to the next page. Firstly, let's see the differences between the JDK, JRE,...

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Programming the GPU in Java

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Programming a graphics processing unit (GPU) seems like a distant world from Java programming. This is understandable, because most of the use cases for Java are not applicable to GPUs. Nonetheless, GPUs offer teraflops of performance, so let’s explore their possibilities. To make the topic approachable, I’ll spend...

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