PAAA

Now we are in the information age, and distance learning is becoming more and more popular. For subjects related to computer science, programming assignments can't be avoided. But it's hard for human to review massive answers. Therefore, on the basis of former study, we put forward a new method, which is on the level of source code comprehension. In this paper, we revealed a method of programming assignment automatic assessing. Our project, Programming Assignments Automatic Assessing (PAAA), imitates human reviewers' action, and take such strategy to look through the source code. Furthermore, with the help of general grammar analyze tool ANTLR, it is able to read source code written in different languages, and build a language-independent program directed graph. Through a lot of tests, PAAA can be up to a lot of grading jobs of programming assignments assessment. And the result shows that PAAA's result is very close to human's marking.