如何遍历这种类型的Hashtable？

import java.util.Hashtable;
import java.util.Map;

public class HashtableTraversal {
    public static void main(String[] args) {
        Hashtable<String, Integer> hashtable = new Hashtable<>();
        hashtable.put("One", 1);
        hashtable.put("Two", 2);
        hashtable.put("Three", 3);

        for (Map.Entry<String, Integer> entry : hashtable.entrySet()) {
            System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
        }
    }
}

using System;
using System.Collections;

class Program {
    static void Main() {
        Hashtable hashtable = new Hashtable();
        hashtable.Add("One", 1);
        hashtable.Add("Two", 2);
        hashtable.Add("Three", 3);

        foreach (DictionaryEntry entry in hashtable) {
            Console.WriteLine("Key: " + entry.Key + ", Value: " + entry.Value);
        }
    }
}

hashtable = {'One': 1, 'Two': 2, 'Three': 3}

for key, value in hashtable.items():
    print(f'Key: {key}, Value: {value}')

const hashtable = { One: 1, Two: 2, Three: 3 };

for (const [key, value] of Object.entries(hashtable)) {
    console.log(`Key: ${key}, Value: ${value}`);
}

// Java示例：使用只读视图遍历Hashtable
for (Map.Entry<String, Integer> entry : Collections.unmodifiableMap(hashtable).entrySet()) {
    // 处理entry
}