Java:如何从方法返回的列表中写入/读取？

import java.util.ArrayList;
import java.util.List;

public class ListExample {
    public static List<String> getNames() {
        List<String> names = new ArrayList<>();
        names.add("Alice");
        names.add("Bob");
        names.add("Charlie");
        return names;
    }

    public static void main(String[] args) {
        List<String> names = getNames();
        for (String name : names) {
            System.out.println(name);
        }
    }
}

import java.util.ArrayList;
import java.util.List;

public class ListExample {
    public static void main(String[] args) {
        List<String> names = new ArrayList<>();
        names.add("Alice");
        names.add("Bob");
        names.add("Charlie");

        // 写入新元素
        names.add("David");

        for (String name : names) {
            System.out.println(name);
        }
    }
}

import java.util.ArrayList;
import java.util.List;

public class ListExample {
    public static void main(String[] args) {
        List<String> names = new ArrayList<>();
        names.add("Alice");
        names.add("Bob");
        names.add("Charlie");

        // 读取元素
        for (String name : names) {
            System.out.println(name);
        }
    }
}

List<String> names = new ArrayList<>();
if (names != null) {
    for (String name : names) {
        System.out.println(name);
    }
}

List<String> names = new ArrayList<>();
names.add("Alice");
names.add("Bob");
names.add("Charlie");

// 使用迭代器进行修改
Iterator<String> iterator = names.iterator();
while (iterator.hasNext()) {
    String name = iterator.next();
    if (name.equals("Bob")) {
        iterator.remove();
    }
}