Thread is used to increase the program efficiency by performing multiple tasks at a time. Threads can be used to perform complicated background tasks without interrupting the main program. We can identify the thread states in mainly five. Let’s discuss briefly the main states of a thread. 01. New: This…

JUnit is an open-source testing framework for Java programs. We can create test cases for separate Java functionalities using JUnit. We mainly use JUnit for unit testing, which is the first level of testing in the software development life cycle. We can write the test cases to ensure program functionalities…

HashMap is a special type of data structure that is part of the Java Collection Framework and allows us to store data with a key. On the other hand, we can call this data structure a key-value pair. Here, we can store the two objects, one as a key and…

A function URL is a dedicated HTTP(S) url for the lambda function. We can configure the function URL using the AWS Lambda function console. Once the function url is created, it will never change. It’s a constant URL. Once the function URL is configured, we can access our lambda function…

Selenium is a testing tool that is used to automate user interface testing. Selenium supports test automation across different browsers, platforms, and programming languages. Selenium can be easily deployed on platforms like Windows, Linux, etc. Also, it supports multiple operating systems like Android and iOS. Also, Selenium supports various programming…

Spring Boot Annotations is used to provide some meta data about the programs. In this blog, let’s discuss the @Component annotation used in the spring boot. @Component is a class-level annotation that is used to denote a class as a component. A component is responsible for some operations of the…

Routing means navigating between the pages in an application. When we think about web-based applications, routing is a very important function that enables us to navigate between pages. For example, when we want to switch pages on a website, we simply use the html <a> tags to switch between them…

An interface that contains exactly one abstract method is called a functional interface. Since a functional interface contains only one abstract method, it can have any number of default or static methods. Functional interfaces can also be defined as single abstract method interfaces, or SAM interfaces. Since Java 8, there…

AWS Lambda is a service that enables us to launch our codes without considering the server or configurations, which are included in the domain of AWS computing along with EC2 and Elastic Beanstalk. We just have to upload our source code to execute them on AWS. Also, we can refer…