Language arts are a technique to communicate with others to make the partner understand one's own intention precisely. This is similar to programming, where the partner is a computer. This paper describes the influence of an ability of language arts on a student in an introductory programming course. Our method is organized to measure students' (1) explanation ability of another person and for a child of age five and (2) effort of programming task by counting compile operations. Statistical hypothesis tests were conducted with such data. Results indicate that student's ability of language arts has no significant influence on effort by writing a first compile-error-free program, but significant influence on effort by modifying and completing the program.