use of maven in java code example

Example 1: what is pom.xml

- pom.xml file allows us to add, remove, manage dependencies 
and versions from one single location.
    - POM stands for project object model
    - .xml -> stands for: extensible markup language

Example 2: example of simple maven pom java

        11                                                                 org.apache.maven.plugins                    maven-compiler-plugin                    3.8.1