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Posez votre questionprivate void comboboxtht() { try { String URL = "jdbc:mysql://localhost:3306/..."; Connection con = DriverManager.getConnection(URL, "root", ""); Statement statement = con.createStatement(); String requeteMysql = "Select distinct exemple From ta table"; resultRequete = (ResultSet) statement.executeQuery(requeteMysql); while (resultRequete.next()) { combo5.addItem(resultRequete.getString(1)); } } catch (SQLException ex) { System.err.println("SQLException: " + ex.getMessage()); } }