manageimpl.java

学生成绩管理软件 成绩单{录入,查找,删除,保存到文件,从文件读入,修改,统计平均分...} 数据方面可以从以下方面考虑: 可以使用ArrayList保存同类型的记录.参见教材13.1.2(P

package sdau.lyxs.service;
import sdau.lyxs.dao.*;
import sdau.lyxs.*;
import java.util.*;
public class ManageImpl implements Manage
{
    private StudentsDao studentsDao;
	public void setStudentsDao(StudentsDao studentsDao){
		this.studentsDao=studentsDao;
	}
    public void addStudents(String name,String num)
    {
        Students students=new Students();
        students.setName(name);
        students.setNum(num);
        studentsDao.save(students);
    }
    public List view()
    {
        return (List)studentsDao.findAll();
    }
    public void delete(int id,String name,String num)
    {
        Students students=new Students();
        students.setId(id);
        students.setName(name);
        students.setNum(num);
        studentsDao.delete(students);
    }
}