This paper introduces a mobile tutoring system for teaching Java operators carried out in a mobile learn -ing  environment. For college students to overcome  the difficulties they face. The application offers the  subject of Java operators and administers routinely generated problems for the students to solve and right  their wrong Answers. This application generates tests to determine the student's understanding of the les -son introduced and the results obtained. A preliminary evaluation learn about was once carried out to look  at the impact of using the mobile tutoring system on  the performance of college students enrolled in Java  course in the institute of computer sciences and In -formation technology at El Shrouk academy, Cairo,  Egypt. The results confirmed a positive impact on the  evaluators.