java - 可观察列表

Question

尝试声明新的 ObservableList 时:

ObservableList<Account> userAccounts = new FXCollections.observableArrayList();

我在 observableArrayList(); 处遇到错误其中说:

cannot find symbol, symbol: class observableArrayList, location: class FXCollections.

这是我的导入语句

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;

这是我的方法

public ObservableList<Account> getUsersAccounts(int memberID) { 
    ObservableList<Account> userAccounts = new FXCollections.observableArrayList();

    try {     
        Statement stmt = conn.createStatement();            
        String sql = "SELECT * FROM account WHERE member_id='" + memberID + "'";            
        ResultSet rs = stmt.executeQuery(sql);

        while(rs.next()) {
            Account account = new Account(rs.getInt("member_id"), rs.getString("account_type"), rs.getDouble("balance"));
            userAccounts.add(account);
        }
    } catch (SQLException ex) {
        Logger.getLogger(JDBCManager.class.getName()).log(Level.SEVERE, null, ex);
    }

    return userAccounts;
}

我错过了什么，为什么我不能声明一个新的 ObservableList ？

Answer 1

改变

ObservableList<Account> userAccounts = new FXCollections.observableArrayList();

到

ObservableList<Account> userAccounts = FXCollections.observableArrayList();