有什么方法可以在java的HashMap/HashTable中单独显示男女性别名称吗？

public class Person {
    private String name;
    private String gender;

    public Person(String name, String gender) {
        this.name = name;
        this.gender = gender;
    }

    // 省略getter和setter方法
}

import java.util.HashMap;
import java.util.Map;

public class GenderDisplay {
    public static void main(String[] args) {
        Map<String, Person> personMap = new HashMap<>();

        // 添加Person对象到HashMap/HashTable
        personMap.put("John", new Person("John", "Male"));
        personMap.put("Alice", new Person("Alice", "Female"));
        personMap.put("Bob", new Person("Bob", "Male"));
        personMap.put("Eve", new Person("Eve", "Female"));

        // 单独显示男性姓名
        System.out.println("Male Names:");
        for (Person person : personMap.values()) {
            if (person.getGender().equals("Male")) {
                System.out.println(person.getName());
            }
        }

        // 单独显示女性姓名
        System.out.println("Female Names:");
        for (Person person : personMap.values()) {
            if (person.getGender().equals("Female")) {
                System.out.println(person.getName());
            }
        }
    }
}