Skip to main content

Maven Interview Questions and Answers

What is Maven?
Maven is a software project management tool; manage a project's build and automation tool used primarily for Java projects. Maven is developed by Apache Software Foundation. 

Maven is written in Java and Initial release - 13 July 2004, 14 years ago.

Maven addresses two aspects of building software -
1.      Firstly, it describes how software is built.
2.      Secondly, it describes its dependencies.

Maven provides a complete build life-cycle framework. On executing commands, it will look for POM file in Maven. It will run the command on the resources described in the POM.
Maven handles following Activities -
1.      Build
2.      Documentation
3.      Reporting
4.      Dependencies
5.      SCMs
6.      Releases
7.      Distribution
8.      Mailing list

How to Install Maven?
Make sure JDK is installed, and JAVA_HOME variable is added as Windows environment variable and both M2_HOME and MAVEN_HOME variable in the Windows environment, and point it to your Maven folder.

What Is POM?
POM stands for Project Object Model; it is fundamental unit of work, XML file which holds the information of project and configuration details which is used to build a project by Maven.

All your code and resources are placed in the src directory.
1.      The main/Java directory holds your project code
2.      Compiled code is placed in the largest directory
3.      The test/Java directory holds your JUnit test code

What are the Advantages of Maven?
1.      Maven uses convention whereas ant uses Configuration
2.      Maven supports project modularization
3.      Maven supports dependency management and migration
4.      No need to add jar file in each project
5.      Creates right directory structure
6.      Builds and deploys the project

Why Maven is used?
It helps to setup project very quickly and it avoids complicated build files like build.xml.
1.      Gather necessities
2.      Analyses necessities
3.      Design solution
4.      Develop (code) solution
5.      Test solution
6.      Deploy solution
7.      Maintain solution

Why Maven Plugins are used?
Maven plugins are used to -
1.      Create a Jar file
2.      Create War file
3.      Compile Code files
4.      Unit Testing of code
5.      Documenting projects
6.      Reporting

What is Maven Repository?
Maven repository is used as a storage folder or a directory to store your projects, your files such as Jar, War or Ear files.

Three main repositories are -
1.      Local Repository
2.      Central Repository
3.      Remote Repository

 What is Build Lifecycle of Maven?
A Build Lifecycle is a well-defined sequence of phases which define the order in which the goals are to be executed.

What Is three build lifecycle of Maven?
1.      Clean
2.      Default build
3.      Site
How can you build your project offline?
Use the command −
mvn o package

What are the tenets of Maven?
1.      Convention over Configuration
2.      Project oriented and dependency management
3.      Reuse through centralized repositories
4.      Extensible through plugins

How do you know the version of mvn you are using?
Type the following command −
mvn --version

What are the archetype goals?
There are four goals associated with archetype -
1.      Create
2.      Generate
3.      Create-from-project
4.      Crawl

What are Maven Project Types?
1.      War
2.      Jar
3.      Ear
4.      Wildfly
5.      JMS
6.      Android

What is the dependency scope in Maven?
1.      Compile
2.      Provided
3.      Runtime
4.      Test
5.      System

What are the aspects Maven manages?
1.      Documentation
2.      SCMs
3.      Distribution
4.      Builds
5.      Reporting
6.      Releases
7.      Mailing list
8.      Dependencies

What is the command to install JAR file in local repository?
Type the following command −
mvn install

What is SNAPSHOT in Maven?
Maven SNAPSHOT is a special version that indicates a current development copy.

What is the difference between Ant and Maven?
Ant (Another Neat Tool) - is mainly a build tool.
Maven is a software project management tool, framework; manage a project's build and automation tool.

Ant doesn't have a life-cycle but Maven has a life-cycle.

Maven has intelligence about common project tasks but Ant doesn't have.

Ant doesn't have formal conventions but Maven has a convention to place source code, compiled code etc.

Ant is procedural but Maven is declarative.

The ant scripts are not reusable but The Maven plugins are reusable.
Ant and Ivy is a pretty good combination if you want to avoid Maven.

What is the difference between Maven and Gradle?
Gradle as goodness of Ant and Maven put together minus the noise of XML.

Gradle build files are less verbose as they are written in groovy and It provides very nice DSL for writing build tasks.

Gradle has lots of good plugins and vibrant ecosystem.

Maven is a software project management tool, framework; manage a project's build and automation tool. Maven continues to use XML files.
By Anil Singh | Rating of this article (*****)

Popular posts from this blog

nullinjectorerror no provider for httpclient angular 17

In Angular 17 where the standalone true option is set by default, the app.config.ts file is generated in src/app/ and provideHttpClient(). We can be added to the list of providers in app.config.ts Step 1:   To provide HttpClient in a standalone app we could do this in the app.config.ts file, app.config.ts: import { ApplicationConfig } from '@angular/core'; import { provideRouter } from '@angular/router'; import { routes } from './app.routes'; import { provideClientHydration } from '@angular/platform-browser'; //This (provideHttpClient) will help us to resolve the issue  import {provideHttpClient} from '@angular/common/http'; export const appConfig: ApplicationConfig = {   providers: [ provideRouter(routes),  provideClientHydration(), provideHttpClient ()      ] }; The appConfig const is used in the main.ts file, see the code, main.ts : import { bootstrapApplication } from '@angular/platform-browser'; import { appConfig } from ...

List of Countries, Nationalities and their Code In Excel File

Download JSON file for this List - Click on JSON file    Countries List, Nationalities and Code Excel ID Country Country Code Nationality Person 1 UNITED KINGDOM GB British a Briton 2 ARGENTINA AR Argentinian an Argentinian 3 AUSTRALIA AU Australian an Australian 4 BAHAMAS BS Bahamian a Bahamian 5 BELGIUM BE Belgian a Belgian 6 BRAZIL BR Brazilian a Brazilian 7 CANADA CA Canadian a Canadian 8 CHINA CN Chinese a Chinese 9 COLOMBIA CO Colombian a Colombian 10 CUBA CU Cuban a Cuban 11 DOMINICAN REPUBLIC DO Dominican a Dominican 12 ECUADOR EC Ecuadorean an Ecuadorean 13 EL SALVA...

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin...

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü   Tables and data grids ü   Notifications ü   Loader ü   Calendar ü   Display time, date and age ü   Progress Bar ü   Tooltip ü   Overlay ü   Icons ü   Menu ü   Charts ü   Map ü   Pdf viewer ü   And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan ...

.NET Core MVC Interview Questions and Answers

» OOPs Interview Questions Object Oriented Programming (OOP) is a technique to think a real-world in terms of objects. This is essentially a design philosophy that uses a different set of programming languages such as C#... Posted In .NET » .Net Constructor Interview Questions A class constructor is a special member function of a class that is executed whenever we create new objects of that class. When a class or struct is created, its constructor is called. A constructor has exactly the same name as that of class and it does not have any return type… Posted In .NET » .NET Delegates Interview Questions Delegates are used to define callback methods and implement event handling, and they are declared using the "delegate" keyword. A delegate in C# is similar to function pointers of C++, but C# delegates are type safe… Posted In .NET » ASP.Net C# Interview Questions C# was developed by Microsoft and is used in essentially all of their products. It is mainly used for ...