A FULL STACK DEVELOPER is someone who has expertise in both the front-end and back-end aspects of web development using the Java programming language.

On the front-end, a FULL STACK DEVELOPER would have knowledge of HTML, CSS & JavaScript for creating the user interface and making it interactive. They would also be able to use front-end frameworks such as AngularJS, ReactJS & VueJS to build responsive and dynamic web pages.

On the back-end, a FULL STACK DEVELOPER would have knowledge of how to write server-side code using Java. They would be familiar with popular Java web frameworks such as Spring, Struts & JavaServer Faces (JSF) and be able to use them to build web applications. They would also be able to work with databases, APIs, and web services to handle server-side logic and process data. They would also be familiar with Object-Relational Mapping (ORM) frameworks such as Hibernate to interact with databases.

A FULL STACK DEVELOPER would also have a good understanding of web development principles and be able to work with different tools and technologies as required. They would also have knowledge of testing and debugging techniques for ensuring the quality of the code. They would also have knowledge of build tools such as Maven and Gradle to manage dependencies and automate the build process.