An Implementation of Java Programming Assistant System in University Course

Nowadays, Java is highly prevalent due to its portability and object-oriented design. To aid novice learners, we have developed Java Programming Learning Assistant System (JPLAS) with the Node.js-based platform. Currently, JPLAS offers seven problem types at different levels, allowing automatic marking of answers through string matching. In this paper, we present the implementation of JPLAS in the 2023 Java programming course at Okayama University, Japan. For this course, we generated 133 problem instances aligned with its curriculum and assigned them to 56 third-year students. The solution results highlight difficulty variations across the problem types and affirm the effectiveness in the course.