What is Maven?
What
is Build Lifecycle of 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
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.