Students' Perspectives on AI Code Completion: Benefits and Challenges

AI Code Completion (e.g., GitHub's Copilot) has revolutionized how computer science students interact with programming languages. However, AI code completion has been studied from the developers' perspectives, not the students' perspectives who represent the future generation of our digital world. In this paper, we investigated the benefits, challenges, and expectations of AI code completion from students' perspectives. To facilitate the study, we first developed an open-source Visual Studio Code Extension tool AutoAurora, powered by a state-of-the-art large language model StarCoder, as an AI code completion research instrument. Next, we conduct an interview study with ten student participants and apply grounded theory to help analyze insightful findings regarding the benefits, challenges, and expectations of students on AI code completion. Our findings show that AI code completion enhanced students' productivity and efficiency by providing correct syntax suggestions, offering alternative solutions, and functioning as a coding tutor. However, the over-reliance on AI code completion may lead to a surface-level understanding of programming concepts, diminishing problem-solving skills and restricting creativity. In the future, AI code completion should be explainable and provide best coding practices to enhance the education process.