whats maven used for code example

Example: what is maven

What is MAVEN?
    - Maven is a built automation tool.
    - Maven is a tool that helps us create projects easyly.
--> What is built?
    - Creating, adding, compiling, testing and deploying a project.
    All of these combined are called a Built.
    - Since maven is "built" automation tool, it helps us automate 
    all of these steps.
--> Similar tools like Maven?
    - ant
    - gradle
    - kotlin
-->   Most important file in a Maven project?
    - pom.xml is the most important file in a Maven project.