String a = JOptionPane.showInputDialog(null, "What flavor do you want to add?");
    String sql = "INSERT INTO tblFlavor values('+a+')";

    try {

        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

        String connectionURL = "jdbc:sqlserver://localhost:1433;databaseName=finalsTableDB;user=admin;password = password";

        Statement st = con.createStatement();

        int i = st.executeUpdate(sql);
        if (i > 0) {
            JOptionPane.showMessageDialog(null, "Successfully Added!!");
        }
    } catch (Exception e) {
        JOptionPane.showMessageDialog(null, "Failed To Add!!!");
    }
}