Trying to display tables reusing same code.

Question

I'm probably being really naive but I just can't get this to work!
I have a display table class that will only display a one table when a button is pressed in a GUI. I want to use the same code again to display another table but pressing another button this time. ie: press "Table 1" button and the SQL query SELECT * FROM Customer should be used. Press "Table 2" Button and SQL query SELECT * FROM Order should be used. I have tried creating a constructor for this but it keeps coming up with errors. Please can you have a look at my code. The bits that don't work are commented out. I want to be able to just change the query that is used each time a different button is pressed.
Thanks in advance.
import java.sql.*;
import java.awt.*;
import javax.swing.*;
import java.util.*;
public class TableDisplay extends JFrame{
private Connection aConnection;
private JTable cusTable;
private String Query;
private String Title;
public TableDisplay() {
//public TableDisplay (String Query,String Title){
try {
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());
aConnection = DriverManager.getConnection("jdbc:odbc:RelAlg", "", "");
catch (SQLException e) { System.exit(11);}
getTable();
setSize(450,150);
show();
private void getTable(){
Statement aStatement;
ResultSet aSet;
try{
aStatement = aConnection.createStatement();
aSet = aStatement.executeQuery("SELECT * FROM RelAlgCustomerTable");
//aSet = aStatement.executeQuery(Query);
displayResultSet(aSet);
aStatement.close();
catch (SQLException e) { System.exit(12);}
private void displayResultSet(ResultSet rs)
throws SQLException{
//position to first record
boolean moreRecords = rs.next();
//if there is no records display a message
if(!moreRecords){
JOptionPane.showMessageDialog(this, "ResultSet unable to find table");
setTitle("No table to display");
return;
setTitle("Customer Table");
// setTitle(Title);
Vector columnHeads = new Vector();
Vector rows = new Vector();
try{
//get column heads
ResultSetMetaData rsmd = rs.getMetaData();
for(int i = 1;i <= rsmd.getColumnCount();i++)
columnHeads.addElement(rsmd.getCatalogName(i));
//get row data
do{
rows.addElement(getNextRow(rs,rsmd));
while (rs.next());
//display tabel with ResultSet contents
cusTable = new JTable(rows, columnHeads);
JScrollPane scroller = new JScrollPane(cusTable);
getContentPane().add(scroller,BorderLayout.CENTER);
validate();
catch (SQLException e) { System.exit(13);}
private Vector getNextRow(ResultSet rs, ResultSetMetaData rsmd)
throws SQLException {
Vector currentRow = new Vector();
for (int i = 1; i<=rsmd.getColumnCount();++i)
switch(rsmd.getColumnType(i)){
case Types.VARCHAR:
currentRow.addElement(rs.getString(i));
break;
case Types.INTEGER:
currentRow.addElement(new Long(rs.getLong(i)));
break;
default:
System.out.println("Type was:" +rsmd.getColumnTypeName(i));
return currentRow;
public void shutDown(){
try{
aConnection.close();
catch (SQLException e) { System.exit(14);}
public static void main(String args []){
final TableDisplay app = new TableDisplay();
This is the code from the gui that displays the table on the press of the table button
void table1_mouseClicked(MouseEvent e) {
TableDisplay tDisp = new TableDisplay();
tDisp.show();
}

Answer 1

what errors are you getting?
Where are you passing in the value for "Query" and assigning it to the class variable of the same name?
do this in the constructor:
public TableDisplay (String Query,String Title){
/////new line
this.Query = Query;
////end new line
try {
DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver());
aConnection = DriverManager.getConnection("jdbc:odbc:RelAlg", "", "");
}