“Hello World” is one of the first steps in learning a programming language. A Hello World program demonstrates a programming language’s functionality in a simple manner. This was originally coined by Bell Laboratories as early as 1974 and it has since become a tradition. Code examples for a Hello World program can be found in almost every programming textbook today.
What exactly is Solr? The answer to this question lies in our article. In combination with the Java library, Lucene, Solr can be used to build powerful web search engines. Do you need to index your documents? Solr will take care of this. First, we explain the basic terms of practical open source software and its functions. In our Solr tutorial, we’ll explain how to set up the search platform. In...
Meta tags are used by website owners to specify metadata in HTML documents. The coded information integrates with web browsers and search engine crawlers to enhance the searchability of a website. But which meta elements are actually required by user agents to improve processing? And how can you use metadata to boost your website’s ranking in the search results?
Spam robots, so-called harvesters, consistently search the internet for email addresses that can be used for unlawful advertising, phishing emails, and spreading viruses, worms, and Trojans. You’re recommended to have your contact details on your website, but how do you stop them from being misused? This article gives you advice on how to protect your email address.
If you want to liven up a static HTML file and make it interactive, you can easily embed JavaScript in HTML. JavaScript elements add dynamic features to the functions of a website and make for modern, creative online presences. Our tutorial explores the available options for this.
When you work on a program every day, you’ll be using a wide variety of Java commands, and you’ll need to use quite a few of the same commands over and over again. In our overview, we’ll show you the most important Java commands, explain what they are used for as well as teach you how to use Java commands. Let’s begin.
The head-controlled while-loop is a simple and important tool in Java. Just by using a termination condition, programs can use it to complete many tasks within a defined scope. Here you will learn what exactly the while-loop is in Java, how it is constructed, and how it differs from other loops in Java such as do-while and for.
One of the best known and most important loops in Java is the for-loop. This means that you’ll be able to execute an action for a certain number of runs until the point that a previously defined condition is met. In our article, we will go through what the for-loop is, and explain how you can easily use a for-loop in Java.
A shock was felt around the world at the end of 2021 when the Log4Shell vulnerability became known to the public. Attackers were able to completely take over remote systems without much effort. All major companies and many of the most widely used services were affected by it. In our article, we’ll explain why Log4Shell was so disastrous, how the exploits work, and what protective measures are...
Angular vs. React is a competition that divides the developer community. The two frameworks both enjoy a large fanbase and come with numerous advantages. We explain what Angular and React are, what they have in common, what distinguishes them, and what kinds of projects each of them is suited to. Read on to find out more.
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