what is "SQLException: Operation not allowed after ResultSet closed"
i compile my program is no problem but when i run it it come out the error "SQLException: Operation not allowed after ResultSet closed"
what the error actually is?
here is my code:
import java.net.*;
import java.util.*;
import java.io.*;
import java.sql.*;
import java.util.Date;
import java.text.SimpleDateFormat;
publicclass attend{
public attend(String stud_id){
SimpleDateFormat sdf=new SimpleDateFormat("EEEE");
SimpleDateFormat sdf2=new SimpleDateFormat("hh:mm:ss");
Date c=new Date();
String day=sdf.format(c);
String time=sdf2.format(c);
System.out.println(day);
System.out.println(time);
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
}
catch (Exception E){
System.out.println("Unable to load driver.");
E.printStackTrace();
}
try{
Connection C = DriverManager.getConnection("jdbc:mysql://localhost/attendance","root","");
Statement S = C.createStatement();
ResultSet rs = S.executeQuery("select "+
"student.student_id,student.student_name,student.email,lecturer.lecturer_name,course.course_desc,"+
"tsubject.tsubject_desc, tsubject.stime, tsubject.sday from student,stu_course,course_sub,course,tsubject,lecturer "+
"where student.student_id=stu_course.student_id AND stu_course.course_id=course_sub.course_id AND "+
"course_sub.course_id=course.course_id AND "+
"course_sub.tsubject_id=tsubject.tsubject_id AND lecturer.lecturer_id=tsubject.lecturer_id AND student.student_id="+stud_id);
ResultSetMetaData rsStruc = rs.getMetaData();
while (rs.next()){
String student_id=rs.getString("student_id");
String stud_name=rs.getString("Student_name");
String email=rs.getString("email");
String lec_name=rs.getString("lecturer_name");
String course=rs.getString("course_desc");
String subject=rs.getString("tsubject_desc");
String stime=rs.getString("stime");
String sday=rs.getString("sday");
rs.close();
C.close();
}
}
catch (Exception E){
System.out.println("SQLException: " + E.getMessage());
}
}
publicstaticvoid main(String args[])
{
new attend("0503137");
}
}
