UnsupportedOperationException ERROR in Java Arraylist

Question

I have two forms, first is for the Login and second one is the Main Form with JTable on it, that can display data from the database. This the code I used for viewing and studentlist. I can't figure out how I got the "UnsupportedOperationExemption" Error. I am new in Java. I am using Apache Netbeans.

    ArrayList<Student> list; 
    myQuery mq = new myQuery();

    public MainForm(){
        initComponents();
        view(); 
    }


    void view(){

        list = mq.studentlist();
        DefaultTableModel model = (DefaultTableModel)studTable.getModel();
        Object[] row = new Object[11];

        for(int i=0; i<list.size(); i++){
            row[0]=list.get(i).getStudID();
            row[1]=list.get(i).getLRN();
            row[2]=list.get(i).getGrade();
            row[3]=list.get(i).getLName();
            row[4]=list.get(i).getFName();
            row[5]=list.get(i).getMName();
            row[6]=list.get(i).getGender();
            row[7]=list.get(i).getBday();
            row[8]=list.get(i).getAge();
            row[9]=list.get(i).getCNumber();
            row[10]=list.get(i).getAdviser();

          model.addRow(row);
        }

    }
}

//----------------ArrayList Here---------------------------

   ArrayList<Student> studentlist = new ArrayList<>();
   DefaultTableModel model = new DefaultTableModel(); 
   PreparedStatement ps;
   ResultSet rs;
   String query; 
   Student stud;

    try{
        query = "SELECT * FROM students";
        ps = myConnection.getConnection().prepareStatement(query);
        rs = ps.executeQuery();

       while(rs.next()){
           stud = new Student(rs.getInt("idstudents"),
                    rs.getInt("LRN"),
                    rs.getString("Grade"),
                    rs.getString("LName"),
                    rs.getString("FNname"),
                    rs.getString("MName"),
                    rs.getString("Gender"),
                    rs.getString("Bday"),
                    rs.getInt("Age"),
                    rs.getInt("CNumber"),
                    rs.getString("Adviser"));
           studentlist.add(stud);
       }
    }catch(Exception ex){
        ex.printStackTrace();
        //return false;
    }
    return studentlist;
}

Answer 1

Just put a pair of backticks (``) around "students" in your query . That declares the table in the query.