In Chapter 2, Vue.js 2 - It Works in the Way You Expected, you learned the basics of the frontend technology and the basics of Java backend technology, and you successfully integrated the frontend and the backend. This might seem to be sufficient for a full-stack developer. In fact, to become a full-stack developer, you need more than simply learning frontend and backend code skills.

The start point of being a full-stack developer is to change your mindset. You should not only focus on writing code. You need to look at the application development life cycle from a higher level and participate in all its phases. And there might be some phases that you don't think are necessary for a developer to work on. Now is the time to make a change.

The development of an application usually begins with the requirements, followed by design, implementation, testing, and deployment. In Agile development, the process is similar, but at a feature level or a group of features level.

Let's go through the skillsets of a full-stack developer one by one.