Why We Test Software? Imagine using a mobile app that crashes every time you click a button or a website that gives you the wrong information. This would be frustrating, right? That’s where software testing comes into play. It ensures that the software you use works smoothly, efficiently, and correctly. For beginners, understanding why testing […]
Differences Between UDP and TCP When data is sent across the internet—whether it’s an email, a video, or a website—it’s broken down into smaller chunks called packets. These packets are delivered using communication protocols. Two of the most important protocols are TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). Understanding these two protocols is […]
How do you deploy a WAR file in Tomcat using Eclipse? This post will teach you how to use Eclipse to deploy a sample WAR file in Tomcat. First, we will create a Java web project and then deploy it on the Tomcat server. A .war (Web Application Archive) file is a packaged file format […]
What is an ArrayList? ArrayList is a resizable array in Java. It is an implementation of the List interface. Array is fixed in size, whereas ArrayList can grow or shrink dynamically as needed to accommodate adding and removing elements. Class Diagram ArrayList is random access list. It supports fast and generally constant access time for […]
How to create a Sample Servlet using Eclipse? Let us create a sample servlet and deploy it on the Tomcat server. First of all, create a Web Project in Eclipse. For instructions for creating a web project in eclipse, please go through the following question. ( http://www.testingdocs.com/questions/how-to-deploy-a-war-file-in-tomcat-using-eclipse/ ) Create Sample Servlet Right-click the source […]
String Literals vs String Objects String is associated with a string literal in the form of double-quoted text. You can assign a string literal directly into a String variable. String objects are created by a new operator and String constructor. However, this is not recommended in Java. Strings are immutable String is an immutable sequence […]