Save data and Delete rows from JTable

Hello everyon!
Please help me on this
I want to save data to my database from my JTable
here is the code for the save method

public void save(Visit vInfo) throws SQLException{
        PreparedStatement ps = null;
        Connection cn1 = null;
             
        try{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
           cn1 = DriverManager.getConnection(url, userid, pass);
           String q = "INSERT INTO VisitTable(PatientNo,IDNum,Firstvisit,Subsequent,TypeofService)" +
                      " VALUES(?,?,?,?,?)"; 
           ps = cn1.prepareStatement(q) ;
           ps.setString(1, vInfo.getPatientNo());
           ps.setString(2, vInfo.getID());
           ps.setString(3, vInfo.getFirst());
           ps.setString(4, vInfo.getSub());
           ps.setString(5, vInfo.getType());
           ps.executeUpdate();
           
            }catch(Exception e){
            e.printStackTrace();
            //these give blank lines why?
            System.err.println(vInfo.getPatientNo());
            System.err.println(vInfo.getID());
            System.err.println(vInfo.getFirst());
            System.err.println(vInfo.getSub());
            System.err.println(vInfo.getType());
            }
        finally{
            if(ps!=null) ps.close();
            if(cn1!=null) cn1.close(); 
            
        }

called here

SaveBtn = new JButton("Save Row");
SaveBtn.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
try{

Visit vInfo = new Visit();
VisitMethods savmthd = new VisitMethods();
savmthd.save(vInfo);
model.fireTableRowsUpdated(0, visittable.getSelectedRow()+1);
}catch(Exception ex){
ex.printStackTrace();
}
}
});

When I try to save a user entry it gives this exception

java.sql.SQLException: General error
at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6986)
at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7114)
at sun.jdbc.odbc.JdbcOdbc.SQLExecute(JdbcOdbc.java:3149)
at sun.jdbc.odbc.JdbcOdbcPreparedStatement.execute(JdbcOdbcPreparedStatement.java:216)
at sun.jdbc.odbc.JdbcOdbcPreparedStatement.executeUpdate(JdbcOdbcPreparedStatement.java:138)
at VisitMethods.save(VisitMethods.java:114)
refer to : ps.executeUpdate();
at VisitTable$1.actionPerformed(VisitTable.java:50)
refer to: savmthd.save(vInfo);

Please take a look at this is it right???

public class Visit{
  //Declaring global string variable that match the fields of the VisitTable
 private String PatientNo, IDNum, Firstvisit, Subsequent, TypeofService;
    //constructor
    public Visit() {
        try{
            // Kinda not sure about this...
            PatientNo ="";
            IDNum="";
            Firstvisit ="";
            Subsequent ="";
            TypeofService ="";
            visitInfo();
        }catch(Exception e){
            System.err.println("Exception"+ e.getMessage());
            e.printStackTrace();
        }
    }
    
    public String [] visitInfo(){//Is this correct?
        String [] rows = {this.PatientNo, this.IDNum, this.Firstvisit, this.Subsequent, this.TypeofService
        };
        return rows;
    }
    
   // Setting Values
    public void setPatientNo(String Pn){
        PatientNo=Pn;
    }
    public void setID(String id){
        IDNum=id;
    }
    public void setFirst(String fs){
        Firstvisit=fs;
    }
    public void setSub(String sb){
        Subsequent=sb;
    }
    public void setType(String typ){
        TypeofService = typ;
    }
    //Getting the Values
    public String getPatientNo(){
        return PatientNo;
    }
    public String getID(){
        return IDNum;
    }
    public String getFirst(){
        return Firstvisit;
    }
    public String getSub(){
        return Subsequent;
    }
    public String getType(){
        return TypeofService;
    }
}

Please assist

Thanks in advance

This error is not caused by Swing but by the database driver. Moving to JDBC.

Because you created a new Visit object and didn't put any data into it. Have a look at the code following

and you will see where the "blank" data is coming from.

I now know that those blank lines come from the empty assignments I did. So i'm thinking of a parameterised constructor with 5 paramters that I'm going to assign to the instance fields like this

But my concern is the values are entered in the JTable row not in textfields, if it were textfields I could call the Parameterised constructor with 5 variables for which the values would be the values of the textfields.

So please help on how do this with JTable!
Thanks.