public void consultaSigla(){
try { //tratamento de erros
Class.forName("com.mysql.jdbc.Driver");//Driver JDBC ? Fonte de Dados ODBC
//conecta no BD, as aspas vazias representam o Login: usuário e senha.
Connection con = (Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "m0t0r0l4");
Statement stmt = (Statement) con.createStatement();
ResultSet consulta = stmt.executeQuery("select (idCli, valor) from cliente");
List list = new ArrayList(Arrays.asList());
for(int i = 0; i < list.size() ; i++) {
String obj = (String) list.get(i);
if (obj.equals(String.valueOf(valor))) {
//list.add();
}
}