Abstract The demand for full stack developers proficient in Java remains high in enterprise environments. However, the cost of proprietary bootcamps creates a barrier for many learners. This paper proposes a structured, zero-cost curriculum for mastering Java Full Stack development. It synthesizes freely available resources (official documentation, YouTube tutorials, open-source repositories, and MOOC platforms) into a cohesive, project-based learning path. The paper argues that with disciplined self-study, a learner can achieve job-ready competence in Java, Spring Boot, and modern front-end frameworks without financial investment. 1. Introduction The term "Java Full Stack Developer" refers to an engineer capable of building both the back-end (server, database, API) and front-end (user interface) components of an application using Java-based technologies. While Java dominates back-end systems in banking, healthcare, and e-commerce, the full stack role requires additional knowledge of JavaScript, HTML/CSS, and a front-end framework.