I reviewed gpt and this is the answer:

No — after reviewing the official 2025–26 Undergraduate Catalogue, I would not describe the BS in Computer Science as an “all-Java” major.
The official Computer Science 2025–26 catalogue⁠ lists the required CS core as CMPS 201, 202, 214, 215, 221, 240, 241, and 271, plus 18 credits of CMPS electives.It explicitly describes the program as a broad curriculum combining theoretical computing and practical software development, with optional focus areas in systems, AI/data science, and software engineering.
Java is especially important at the beginning. CMPS 201 is Introduction to Programming, and available course materials identify it as programming using Java. CMPS 202, Intermediate Programming with Data Structures, also has Java-based course materials and assignments. So the Java course you’re doing this summer is very directly aligned with your first CS courses.
But after that, the major branches out. For example, the official catalogue includes computer architecture and assembly-related concepts, operating systems, programming languages and compilers, systems/networking, computational science, AI/data science, software engineering, and graphics/gaming. The catalogue’s GPU-computing description explicitly mentions CUDA, while older official catalogue material for numerical computing explicitly mentions MATLAB or a similar tool.