使用jdbc 编写class EnrollmentImpl 实现接口 Enrollment: public interface Enrollment{ pub

使用jdbc 编写class EnrollmentImpl 实现接口 Enrollment:

public interface Enrollment{

public void createStudent(Student student) throws Exception;

pubic void createCourse(Course course) throws Exception;

public void enroll(Student student, Course course) throws Exception;

public void exam(Student, Course course, float grade) throws Exception;

}

请帮忙给出正确答案和分析，谢谢！