示例：

package com.github.collection1.demo5;
/**
 * @author maxiaoke.com
 * @version 1.0
 */
public class Person {
    private String name;
    private Integer age;
    public Person(String name, Integer age) {
        this.name = name;
        this.age = age;
    }
    @Override
    public String toString() {
        return "Person{" + "name='" + this.name + '\'' + ", age=" + this.age + '}';
    }
}

示例：

package com.github.collection1.demo5;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
/**
 * @author maxiaoke.com
 * @version 1.0
 */
public class Test {
    public static void main(String[] args) {
        Collection<Person> collection = new ArrayList<>();
        collection.add(new Person("张三", 11));
        collection.add(new Person("李四", 59));
        collection.add(new Person("王五", 19));
        collection.add(new Person("赵六", 42));
        collection.add(new Person("田七", 8));
        collection.add(new Person("王八", 2));
        for (Iterator<Person> iterator = collection.iterator(); iterator.hasNext();) {
            Person next = iterator.next();
            System.out.println(next);
        }
    }
}