Question

I have some CheckBoxes which are made of my database table names

if(event.getSource()==connect){
    CheckBox check;
    Connection connection = null;
    try {
        Class.forName("org.postgresql.Driver");
        String url = "jdbc:postgresql://localhost:5432/db";
        String username = "username";
        String password = "password";
        connection = DriverManager.getConnection(url, username, password);
        
        // Gets the metadata of the database
        DatabaseMetaData dbmd = connection.getMetaData();
        String[] types = {"TABLE"};
        
        ResultSet rs = dbmd.getTables(null, null, "%", types);
        while (rs.next()) {

            String tableCatalog = rs.getString(1);
            String tableSchema = rs.getString(2);
            String tableName = rs.getString(3);
            check = new CheckBox(tableName);
            Tables.addComponent(check);
        }
    } catch (SQLException e) {
    } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    Tables.addComponent(generate);
}

now lets say I get 10 checkboxes (with different names ofc.). How do I know which of them was checked?

e.g. I check box nr 1.5.7 and click on a button "Print". How do I print them out?

System.out.println("Checked items : " +check);?

Answer 1

Use CheckboxGroup.

CheckboxGroup cbg=new CheckboxGroup();

add a CheckboxGroup as follows:

while (rs.next()) {
   String tableCatalog = rs.getString(1);
   String tableSchema = rs.getString(2);
   String tableName = rs.getString(3);
   Tables.addComponent(new Checkbox(tableName,cbg,false););
}

and you get the selected value.

String value = cbg.getSelectedCheckbox().getLabel();