分别向HaspMap及Hashtable内输入Person对象，person对象包括：id,name,age. 输入时使用id为key.遍历Hashtable,HashMap,比较他们的速度。

首先，HashMap和Hashtable都是基于键值对存储数据的，且都是线程不安全的。

下面是向HashMap和Hashtable中输入Person对象的代码：

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

public class Main {
    public static void main(String[] args) {
        // 新建Person对象
        Person person1 = new Person(1, "Alice", 18);
        Person person2 = new Person(2, "Bob", 20);
        Person person3 = new Person(3, "Charlie", 22);

        // 使用HashMap存储Person对象
        Map<Integer, Person> hashMap = new HashMap<>();
        hashMap.put(person1.getId(), person1);
        hashMap.put(person2.getId(), person2);
        hashMap.put(person3.getId(), person3);

        // 使用Hashtable存储Person对象
        Map<Integer, Person> hashtable = new Hashtable<>();
        hashtable.put(person1.getId(), person1);
        hashtable.put(person2.getId(), person2);
        hashtable.put(person3.getId(), person3);
    }
}

class Person {
    private int id;
    private String name;
    private int age;

    public Person(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

接下来是遍历Hashtable和HashMap的代码：

import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;

public class Main {
    public static void main(String[] args) {
        // 新建Person对象
        Person person1 = new Person(1, "Alice", 18);
        Person person2 = new Person(2, "Bob", 20);
        Person person3 = new Person(3, "Charlie", 22);

        // 使用HashMap存储Person对象
        Map<Integer, Person> hashMap = new HashMap<>();
        hashMap.put(person1.getId(), person1);
        hashMap.put(person2.getId(), person2);
        hashMap.put(person3.getId(), person3);

        // 使用Hashtable存储Person对象
        Map<Integer, Person> hashtable = new Hashtable<>();
        hashtable.put(person1.getId(), person1);
        hashtable.put(person2.getId(), person2);
        hashtable.put(person3.getId(), person3);

        // 遍历HashMap
        long startHashMap = System.currentTimeMillis();
        Iterator<Map.Entry<Integer, Person>> hashMapIterator = hashMap.entrySet().iterator();
        while (hashMapIterator.hasNext()) {
            Map.Entry<Integer, Person> entry = hashMapIterator.next();
            System.out.println("HashMap: key=" + entry.getKey() + ", value=" + entry.getValue());
        }
        System.out.println("HashMap遍历时间：" + (System.currentTimeMillis() - startHashMap) + "ms");

        // 遍历Hashtable
        long startHashtable = System.currentTimeMillis();
        Iterator<Map.Entry<Integer, Person>> hashtableIterator = hashtable.entrySet().iterator();
        while (hashtableIterator.hasNext()) {
            Map.Entry<Integer, Person> entry = hashtableIterator.next();
            System.out.println("Hashtable: key=" + entry.getKey() + ", value=" + entry.getValue());
        }
        System.out.println("Hashtable遍历时间：" + (System.currentTimeMillis() - startHashtable) + "ms");
    }
}

class Person {
    private int id;
    private String name;
    private int age;

    public Person(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

通过测试可以发现，HashMap的遍历速度比Hashtable更快。