public class Demo_2 {

  public static void main(String[] args) {

    PreparedStatement ps=null;
    ResultSet rs=null;
    Connection ct=null;

    try {
      //1.加載驅動
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      //2.得到連接
      ct=DriverManager.getConnection("jdbc:odbc:mytest");
      //3.創(chuàng)建PreparedStatement
      ps=ct.prepareStatement("select * from Course where Cno=? and Cpno=?");
      
      ps.setString(1,"3");       //給第一個問號賦值
      ps.setInt(2,1);
      rs=ps.executeQuery();
      
      while(rs.next()){
        String Cno=rs.getString(1);
        String Cname=rs.getString(2);
        int Cpno=rs.getInt(3);
        int Ccredit=rs.getInt(4);
        System.out.println(Cno+" "+Cname+" "+Cpno+" "+Ccredit);
      }  
      
      //使用 PreparedStatement添加一條記錄
//      ps=ct.prepareStatement("insert into Course values(?,?,?,?)");
//      ps.setString(1, "8");
//      ps.setString(2, "C++");
//      ps.setInt(3, 3);
//      ps.setInt(4, 2);
//      //執(zhí)行
//      int i=ps.executeUpdate();
//      if(i==1){
//        System.out.print("添加成功");
//      }else{
//        System.out.print("添加不成功");
//      }
      
    } catch (Exception e) {
      e.printStackTrace();
    }finally{
        try {
          if(rs!=null){
            rs.close();
          }
          if(ps!=null){ 
            ps.close();
          }
          if(ct!=null){
            ct.close();
          }  
        } catch (Exception e) {
          e.printStackTrace();
        }
    }  
  }
}