addcourseaction.java~2~

java(Swing) access做的成绩管理系统

package edu.xscj.action;

import java.sql.Connection;
import edu.xscj.conn.ConnectDataBase;
import edu.xscj.bean.*;
public class AddCourseAction {
    Connection conn = null;

    public AddCourseAction() {
        if (conn == null) {
            conn = ConnectDataBase.getConn();
        }
    }

    public void setConn() {
       if (conn == null) {
           conn = ConnectDataBase.getConn();
       }
   }

   public String addCourse(Course course)

}